CN114603872A - Wear-resistant antibacterial degradable plastic and preparation method of film - Google Patents
Wear-resistant antibacterial degradable plastic and preparation method of film Download PDFInfo
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- CN114603872A CN114603872A CN202210229382.XA CN202210229382A CN114603872A CN 114603872 A CN114603872 A CN 114603872A CN 202210229382 A CN202210229382 A CN 202210229382A CN 114603872 A CN114603872 A CN 114603872A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
- B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/731—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the intensive physical properties of the material of the parts to be joined
- B29C66/7315—Mechanical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
- B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
- B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/822—Transmission mechanisms
- B29C66/8225—Crank mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/822—Transmission mechanisms
- B29C66/8227—Transmission mechanisms using springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/832—Reciprocating joining or pressing tools
- B29C66/8322—Joining or pressing tools reciprocating along one axis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
- B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
- B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
- B29C66/83411—Roller, cylinder or drum types
- B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L3/00—Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
- C08L3/02—Starch; Degradation products thereof, e.g. dextrin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/06—Biodegradable
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Abstract
A wear-resistant antibacterial degradable plastic and a preparation method of the film belong to the technical field of plastic films, and aim to solve the problems that when the plastic film is quickly changed from a solid state to a viscose state, the plastic film is quickly heated, so that the formed film is easy to deform, but the heating speed is too slow, so that the two layers of plastic films are not favorably mixed fully, the edge sealing effect is poor, and the control is difficult; the fixed connecting ring drives the jacking rod to move inwards along the movable sliding groove by the traction of external force, the pressing discs are jointed with the heating plate, so that the surface layers of the two groups of wear-resistant lining films are fully jointed with the inner base film, and the four groups of pressing discs preliminarily shape the combined film body under the action of heat; the heating roller and the combined film are fully jointed by utilizing the traction action of the two groups of flattening components on the combination film, so that the combined film is uniformly heated, and the inner base film and the surface layers of the two groups of wear-resistant lining films are fully mixed and the edge parts are tightly jointed in a way of gradually increasing heat quantity through the heating plate and the heating roller.
Description
Technical Field
The invention relates to the technical field of plastic films, in particular to a wear-resistant antibacterial degradable plastic and a film preparation method.
Background
Plastic films are films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins, and are used for packaging and as film coating layers, plastic packages and plastic package products account for more and more parts on the market, particularly composite plastic flexible packages are widely applied to the fields of food, medicine, chemical industry and the like, and the proportion of the plastic packages is the largest.
The application of degradable plastics has promoted the improvement of environment, but degradable plastics's toughness and extensibility are difficult for obtaining the promotion, through carrying out hot pressing with two-layer plastic film, form one deck composite plastic film, with the toughness that promotes plastic film, in order to change plastic film from solid-state to the viscose state fast, then carry out rapid heating to plastic film, easily cause fashioned film to warp, but rate of heating is too slow, be unfavorable for two-layer plastic film intensive mixing, and the banding effect is not good, is difficult to control.
Aiming at the problems, the existing device is improved, and a wear-resistant antibacterial degradable plastic and a film preparation method are provided.
Disclosure of Invention
The invention aims to provide a wear-resistant antibacterial degradable plastic and a film preparation method, and solves the problems that the application of the degradable plastic in the background art promotes the improvement of the environment, but the toughness and the extensibility of the degradable plastic are not easy to be improved, the toughness of the plastic film is improved by forming a layer of composite plastic film by hot-pressing two layers of plastic films, and in order to quickly convert the plastic film from a solid state to an adhesive state, the plastic film is quickly heated, so that the formed film is easy to deform, but the heating speed is too slow, so that the two layers of plastic films are not favorably mixed, the edge sealing effect is poor, and the control is difficult.
In order to achieve the purpose, the invention provides the following technical scheme: the wear-resistant antibacterial degradable plastic comprises the following components in parts by mass: 30 parts of polyethylene plastic particles, 90 parts of polylactic acid plastic particles, 100 parts of starch particles, 7 parts of plant fibers, 50 parts of ethyl acrylate and 3 parts of plasticizer.
A preparation method of a wear-resistant antibacterial degradable plastic film comprises the following steps:
s01, premixing raw materials of polyethylene plastic particles, polylactic acid plastic particles, starch plastic particles, plant fibers and the like to obtain a premixed material;
s02, putting the premixed material into a reaction device, drying the material through an air dehumidifier, and performing exhaust treatment;
s03, crystallizing and drying the materials by reaction equipment, melting, extruding, slicing, cooling and shaping;
s04, forming a film by biaxial stretching to form an inner base film, and preheating the inner base film and the surface layer of the wear-resistant lining film on the working substrate through a preheating assembly;
s05, attaching wear-resistant lining film surface layers on the upper and lower surfaces of the inner base film through a flattening assembly to flatten the inner base film to form a combined film, and after the combined film is buffered, placed, dried and cooled, winding and forming the film through a winding device;
and S06, cutting a section of end film for quality detection, and checking the wear resistance, the ductility, the bending degree and the like of the film.
Furthermore, a flattening lining disc is arranged in the center of the upper surface of the working substrate, a preheating assembly is sleeved on the surface of the flattening lining disc, a flattening assembly is arranged on one side of the preheating assembly, an inner base film is arranged on one side of the flattening lining disc, wear-resistant lining film surface layers are arranged on two sides of the inner base film, a combined film is arranged on the other side of the flattening lining disc, the flattening lining disc comprises a supporting compression ring and limiting edge rings arranged on two sides of the supporting compression ring, a first branch winding roller is arranged at the upper end of the working substrate, the inner base film is sleeved on the surface of the first branch winding roller, second branch winding rollers are arranged on two sides of the first branch winding roller, the wear-resistant lining film surface layers are sleeved on the surface of the second branch winding rollers, two groups of the second branch winding rollers are arranged, the first branch winding rollers are arranged between the two groups of the second branch winding rollers, a main winding roller is arranged on one side of the second branch winding rollers, and the combined film is sleeved on the surface of the main winding roller, the lower ends of the first branch winding roller, the second branch winding roller and the total winding roller are provided with a support bottom plate, and the support bottom plate is arranged on the upper surface of the working substrate.
Further, the subassembly that flattens is including setting up at the arc outrigger that holds in the palm the clamping ring outside and setting up at the inboard arc inner frame of arc outrigger, the last surface mounting of arc outrigger and arc inner frame has the linking strip, be provided with the sliding groove between arc outrigger and the arc inner frame, the inside of arc outrigger is provided with first activity and reserves the chamber, the both ends that the intracavity side was reserved in first activity all are provided with first flattening roller, the inside of arc outrigger is provided with the second activity and reserves the chamber, the middle-end that the intracavity side was reserved in the second activity is provided with the warming mill, the both sides of warming mill all are provided with the second flattening roller, first flattening roller is connected with the second flattening roller.
Furthermore, the inner base film and the wear-resistant lining film surface layer are arranged between one group of first flattening rollers and one group of second flattening rollers, and the inner base film and the wear-resistant lining film surface layer are connected with the other group of first flattening rollers and the second flattening rollers by bypassing the heating roller.
Further, preheat the subassembly including setting up at the support handle board that holds in the palm clamping ring surface and installing the hot plate at support handle board side surface, one side of hot plate is provided with the support riser, the both ends of support riser all are provided with the linking pole, the one end installation laminating handle dish of linking pole, laminating handle dish is connected with spacing edge ring, the activity groove of sliding has been seted up on the surface of support riser, the inside in activity groove of sliding sets up the roof pressure pole, the outside cover of roof pressure pole is equipped with the drive outrigger, the pressure dish is installed to the inboard of supporting the riser, the pressure dish is provided with four groups, the one end of roof pressure pole is connected with the pressure dish, the inboard both ends of support riser all are provided with spacing strake, be provided with the matching groove between two sets of spacing strakes, the hot plate corresponds with the matching groove.
Further, the drive outrigger links up the frame and sets up the movable through hole that links up a central authorities outside the U-shaped including installing the U-shaped on supporting the riser surface, the both ends of movable through hole all are provided with U-shaped location flitch, the translation spout has all been seted up on the upper and lower surface of U-shaped location flitch, the bolster is all installed to the both sides of U-shaped location flitch, the surface mounting of U-shaped location flitch has the translation to push away the piece, one side that the translation pushed away the piece is provided with drives the casting die, the fixed ring that connects is installed to one side of activity through hole, the fixed ring that connects is connected with the roof pressure pole, first movable groove has all been seted up to the both sides of fixed ring that connects.
Further, the bolster includes that the setting links up the long slat of linking up on frame surface outside the U-shaped and sets up the translation elongated slot in linking up the long slat surface, and the internally mounted of translation elongated slot has long slide bar, and the surface cover of long slide bar is equipped with reset spring, and one pot head of long slide bar is equipped with the slider, and reset spring sets up the one side at the slider.
Furthermore, the translation pushing piece comprises a translation long plate connected with the translation sliding groove and a joint long groove formed in the surface of the translation long plate, extending blocks are mounted at two ends of the joint long groove, and the extending blocks are connected with the sliding block.
Further, the drive casting die is including setting up the driving-disc at the U-shaped location flitch inboard and setting up the drive shaft at driving-disc central authorities, the side of driving-disc is installed and is cup jointed the bull stick, the surface cover of cup jointing the bull stick is equipped with first traction arm pole, the surface mounting of the long board of translation links up the flitch, the surface that links up the flitch has seted up the second activity groove, the third activity groove has been seted up to the side surface that links up the flitch, the one end and the third activity groove of first traction arm pole are connected, the one side that links up the flitch is provided with the second and pulls the armed lever, the one end and the first activity groove of second traction arm pole are connected, the other end and the second activity groove of second traction arm pole are connected.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a method for preparing wear-resistant antibacterial degradable plastic and a film, wherein a sliding groove is arranged between an arc outer frame and an arc inner frame, a first movable reserved cavity is arranged inside the arc outer frame, two ends of the inner side of the first movable reserved cavity are respectively provided with a first flattening roller, a second movable reserved cavity is arranged inside the arc inner frame, the middle end of the inner side of the second movable reserved cavity is provided with a heating roller, two sides of the heating roller are respectively provided with a second flattening roller, the first flattening rollers are connected with the second flattening rollers, the inner base film and the wear-resistant lining film surface layer are arranged between one group of the first flattening rollers and the second flattening rollers, the inner base film and the wear-resistant lining film surface layer are wound around the heating rollers to be connected with the other group of the first flattening rollers and the second flattening rollers, the first branch winding rollers and the second branch winding rollers are simultaneously unwound, the inner base film and the wear-resistant lining film surface layer are mutually attached and pass through the heating plate and a matching groove, the hot plate tentatively preheats the film body, start the driving-disc, drive first pull armed lever to one side activity through cup jointing the bull stick, first pull armed lever drives the long board of translation and removes along the translation spout, it pulls the armed lever to one side activity to link up the tiling drive second, two sets of seconds pull the both sides that the armed lever pulled the fixed joint ring, because of pulling of external force, make the fixed joint ring drive roof pressure pole along the activity groove of sliding to the inboard removal, make pressure dish and hot plate engage, so that two sets of wear-resisting lining membrane top layers and interior basic membrane fully laminate, under the heat effect, four groups press the dish to tentatively stereotype the combination film body, do benefit to the compound closely knit degree of promotion of follow-up combination film body.
2. The invention provides a method for preparing wear-resistant antibacterial degradable plastics and a film, wherein four groups of pressing discs are arranged, one end of a jacking rod is connected with the pressing discs, two ends of the inner side of a supporting vertical plate are respectively provided with a limiting edge strip, a matching groove is arranged between the two groups of limiting edge strips, a heating plate corresponds to the matching groove, a driving outer frame comprises a U-shaped outer connecting frame arranged on the surface of the supporting vertical plate and a movable through hole arranged in the center of the U-shaped outer connecting frame, two ends of the movable through hole are respectively provided with a U-shaped positioning pasting plate, the upper surface and the lower surface of the U-shaped positioning pasting plate are respectively provided with a translational sliding groove, two sides of the U-shaped positioning pasting plate are respectively provided with a buffer part, the surface of the U-shaped positioning pasting plate is provided with a translational push part, one side of the translational push part is provided with a driving part, one side of the movable through hole is provided with a fixed connecting ring, the fixed connecting ring is connected with the jacking rod, two sides of the fixed connecting ring are respectively provided with a first movable groove, the preliminarily shaped combined film passes through the first group of first flattening rollers and the second flattening rollers to be flattened, the conveyed combined film bypasses the heating roller and then passes through the second group of first flattening rollers and the second flattening rollers, the heating roller is fully jointed with the combined film by the traction of the two groups of flattening pieces to ensure that the combined film is uniformly heated, the heating plate and the heating roller gradually increase the heat quantity, so that the inner base film and the two groups of wear-resistant lining film surface layers are fully mixed, the edge parts are tightly attached, in order to avoid causing the thin deformation problem of discordance behind the film because of the superheating, and through the combination formula complex on interior base film and two sets of wear-resisting lining membrane top layers, promote plastic film's ductility and tensile strength to a certain extent, under the condition that keeps degradability, plastic film after the complex has promoted toughness.
3. The invention provides a method for preparing wear-resistant antibacterial degradable plastic and a film, wherein a driving piece comprises a driving disk arranged at the inner side of a U-shaped positioning flitch and a driving shaft arranged at the center of the driving disk, a sleeving rotating rod is arranged at the side end of the driving disk, a first traction arm rod is sleeved on the surface of the sleeving rotating rod, a connecting flitch is arranged on the surface of a translation long plate, a second movable groove is arranged on the outer surface of the connecting flitch, a third movable groove is arranged on the side surface of the connecting flitch, one end of the first traction arm rod is connected with the third movable groove, a second traction arm rod is arranged at one side of the connecting flitch, one end of the second traction arm rod is connected with the first movable groove, the other end of the second traction arm rod is connected with the second movable groove, when the driving disk rotates to draw the translation long plate to move, an extension block drives a sliding block to translate along the long sliding rod, under the elastic force of a return spring, promote the mild when long board of translation removes, strengthen the stability of pressing the dish when the translation on the one hand, on the other hand can promote the press dish and the hot plate laminating when stationarity, can prevent to lead to the fact the film wearing and tearing because of pressing the dish laminating speed at the excessive speed, does benefit to the conveying that impels the film.
Drawings
FIG. 1 is a flow chart of the preparation method of the wear-resistant antibacterial degradable plastic film of the invention;
FIG. 2 is a schematic view of the whole structure of the apparatus for preparing a wear-resistant antibacterial degradable plastic film according to the present invention;
FIG. 3 is a schematic structural view of a working substrate of the device for preparing a wear-resistant antibacterial degradable plastic film of the present invention;
FIG. 4 is a schematic three-dimensional structure diagram of the flattening component of the wear-resistant antibacterial degradable plastic film preparation device of the invention;
FIG. 5 is a schematic view of the structure of an arc-shaped outer frame of the device for preparing the wear-resistant antibacterial degradable plastic film of the invention;
FIG. 6 is a schematic view of the structure of an arc-shaped inner frame of the device for preparing the wear-resistant antibacterial degradable plastic film of the invention;
FIG. 7 is a schematic view of the internal plane structure of the flattening component of the wear-resistant antibacterial degradable plastic film preparation device of the invention;
FIG. 8 is a schematic structural view of a preheating component of the wear-resistant antibacterial degradable plastic film preparation device of the invention;
FIG. 9 is a schematic view of the inner side structure of a supporting vertical plate of the wear-resistant antibacterial degradable plastic film preparation device of the invention;
FIG. 10 is a schematic structural view of a driving outer frame of the wear-resistant antibacterial degradable plastic film preparation device of the invention;
FIG. 11 is a schematic view of the overall structure of the driving member of the apparatus for preparing a wear-resistant antibacterial degradable plastic film of the present invention.
In the figure: 1. a working substrate; 11. a first branch take-up roll; 12. a second branch take-up roll; 13. a total wind-up roll; 14. a support base plate; 2. flattening the lining disc; 21. a limiting edge ring; 22. supporting the compression ring; 3. a preheating assembly; 31. a support handle plate; 32. heating plates; 33. attaching a handle disc; 34. a connecting rod; 35. supporting a vertical plate; 351. limiting edge strips; 352. a matching groove; 36. a movable sliding groove; 37. a top pressure rod; 38. driving the outer frame; 381. a U-shaped external connecting frame; 382. a movable through hole; 383. a U-shaped positioning flitch; 3831. a translation chute; 384. a buffer member; 3841. connecting the long strip plates; 3842. a translation elongated slot; 3843. a slider; 3844. a long slide bar; 3845. a return spring; 385. translating the pushing piece; 3851. translating the long plate; 3852. an engagement elongated slot; 3853. an extension block; 386. fixing the connecting ring; 3861. a first movable slot; 387. a driving and pressing piece; 3871. a drive disc; 3872. a drive shaft; 3873. a rotating rod is sleeved; 3874. a first traction arm; 3875. connecting the sticking blocks; 3876. a second movable slot; 3877. a third movable slot; 3878. a second traction arm; 39. pressing the disc; 4. a flattening assembly; 41. an arc-shaped outer frame; 411. a first activity reserve cavity; 412. a first flattening roller; 42. an arc-shaped inner frame; 421. a second activity reserve cavity; 422. a heating roller; 423. a second flattening roller; 43. a connecting strip; 44. a sliding groove; 5. an inner base film; 6. a wear-resistant lining film surface layer; 7. and (6) combining the films.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the technical problems that two layers of plastic films are hot-pressed to form a layer of composite plastic film so as to improve the toughness of the plastic film, and in order to quickly convert the plastic film from a solid state to an adhesive state, the plastic film is quickly heated, so that the formed film is easy to deform, as shown in fig. 1-7, the following preferable technical scheme is provided:
the wear-resistant antibacterial degradable plastic comprises the following components in parts by mass: 30 parts of polyethylene plastic particles, 90 parts of polylactic acid plastic particles, 100 parts of starch particles, 7 parts of plant fibers, 50 parts of ethyl acrylate and 3 parts of plasticizer.
A preparation method of a wear-resistant antibacterial degradable plastic film comprises the following steps:
s01, premixing raw materials of polyethylene plastic particles, polylactic acid plastic particles, starch plastic particles, plant fibers and the like to obtain a premixed material;
s02, putting the premixed material into a reaction device, drying the material through an air dehumidifier, and performing exhaust treatment;
s03, crystallizing and drying the materials by reaction equipment, melting, extruding, slicing, cooling and shaping;
s04, performing biaxial stretching film forming to form an inner base film 5, and preheating the inner base film 5 and the wear-resistant lining film surface layer 6 on the working substrate 1 through the preheating assembly 3;
s05, attaching wear-resistant lining film surface layers 6 on the upper and lower surfaces of the inner base film 5 through a flattening component 4 to flatten the wear-resistant lining film surface layers to form a combined film 7, and after the combined film is buffered, placed, dried and cooled, winding and forming the film through a winding device;
and S06, cutting a section of end film for quality detection, and checking the wear resistance, the ductility, the bending degree and the like of the film.
A flattening lining disc 2 is arranged in the center of the upper surface of a working substrate 1, a preheating assembly 3 is sleeved on the surface of the flattening lining disc 2, a flattening assembly 4 is arranged on one side of the preheating assembly 3, an inner base film 5 is arranged on one side of the flattening lining disc 2, wear-resistant lining film surface layers 6 are arranged on two sides of the inner base film 5, a combined film 7 is arranged on the other side of the flattening lining disc 2, the flattening lining disc 2 comprises a supporting clamping ring 22 and limiting edge rings 21 arranged on two sides of the supporting clamping ring 22, a first branch winding roller 11 is arranged at the upper end of the working substrate 1, the inner base film 5 is sleeved on the surface of the first branch winding roller 11, second branch winding rollers 12 are arranged on two sides of the first branch winding roller 11, the wear-resistant lining film surface layers 6 are sleeved on the surfaces of the second branch winding rollers 12, the second branch winding rollers 12 are provided with two groups, and the first branch winding roller 11 is arranged between the two groups of second branch winding rollers 12, a main winding roller 13 is arranged on one side of a second branch winding roller 12, a combined film 7 is sleeved on the surface of the main winding roller 13, a support base plate 14 is arranged at the lower ends of a first branch winding roller 11, the second branch winding roller 12 and the main winding roller 13, the support base plate 14 is arranged on the upper surface of the working substrate 1, the flattening assembly 4 comprises an arc-shaped outer frame 41 arranged on the outer side of a support compression ring 22 and an arc-shaped inner frame 42 arranged on the inner side of the arc-shaped outer frame 41, a connecting strip 43 is arranged on the upper surfaces of the arc-shaped outer frame 41 and the arc-shaped inner frame 42, a sliding groove 44 is arranged between the arc-shaped outer frame 41 and the arc-shaped inner frame 42, a first movable reserved cavity 411 is arranged in the arc-shaped outer frame 41, first flattening rollers 412 are arranged at two ends on the inner side of the first movable reserved cavity 411, a second movable reserved cavity 421 is arranged in the arc-shaped inner frame 42, a heating roller 422 is arranged at the middle end of the inner side of the second movable reserved cavity 421, the two sides of the heating roller 422 are provided with second flattening rollers 423, the first flattening rollers 412 are connected with the second flattening rollers 423, the inner base film 5 and the wear-resistant lining film surface layer 6 are arranged between one group of the first flattening rollers 412 and the second flattening rollers 423, and the inner base film 5 and the wear-resistant lining film surface layer 6 bypass the heating roller 422 and are connected with the other group of the first flattening rollers 412 and the second flattening rollers 423.
Specifically, the first branch winding roll 11 and the second branch winding roll 12 are unwound simultaneously, the inner base film 5 and the wear-resistant lining film surface layer 6 are attached to each other, the inner base film and the wear-resistant lining film surface layer 6 penetrate through the space between the heating plate 32 and the matching groove 352, the heating plate 32 preheats the film body preliminarily, the driving disc 3871 is started, the first traction arm rod 3874 is driven by the sleeve-connection rotating rod 3873 to move to one side, the first traction arm rod 3874 drives the translation long plate 3851 to move along the translation sliding groove 3831, the joining block 3875 drives the second traction arm rod 3878 to move to one side, the two groups of second traction arm rods 3878 draw the two sides of the fixed joint ring 386, due to the traction of external force, the fixed joint ring 386 drives the jacking rod 37 to move to the inner side along the movable sliding groove 36, the pressing disc 39 is engaged with the heating plate 32, so that the two groups of wear-resistant lining film surface layers 6 and the inner base film 5 are fully attached, the combined film body is preliminarily shaped by the four groups of pressing disc 39 under the action of heat, the compactness of the subsequent composite membrane body is improved.
In order to solve the technical problems that the heating speed is too slow, the two layers of plastic films are not favorably and fully mixed, the edge sealing effect is not good, and the control is difficult, as shown in fig. 5-10, the following preferable technical scheme is provided:
the preheating assembly 3 comprises a supporting handle plate 31 arranged on the surface of the supporting compression ring 22 and a heating plate 32 arranged on the side surface of the supporting handle plate 31, a supporting vertical plate 35 is arranged on one side of the heating plate 32, connecting rods 34 are arranged at two ends of the supporting vertical plate 35, a laminating handle disc 33 is arranged at one end of each connecting rod 34, the laminating handle disc 33 is connected with the limiting edge ring 21, a movable sliding groove 36 is formed in the surface of the supporting vertical plate 35, a top pressure rod 37 is arranged inside the movable sliding groove 36, a driving outer frame 38 is sleeved outside the top pressure rod 37, a pressing disc 39 is arranged inside the supporting vertical plate 35, four groups of pressing discs 39 are arranged on the pressing disc 39, one end of the top pressure rod 37 is connected with the pressing disc 39, limiting edge strips 351 are arranged at two ends of the inner side of the supporting vertical plate 35, a matching groove 352 is arranged between the two groups of limiting edge strips, the heating plate 32 corresponds to the matching groove 352, the driving outer frame 38 comprises a U-shaped outer frame 381 arranged on the surface of the supporting vertical plate 35 and a movable through hole 381 arranged in the center of the U-shaped outer frame 381 The hole 382, the both ends of activity through-hole 382 all are provided with U-shaped location flitch 383, translation spout 3831 has all been seted up to the upper and lower surface of U-shaped location flitch 383, bolster 384 is all installed to the both sides of U-shaped location flitch 383, the surface mounting of U-shaped location flitch 383 has the translation to push away the piece 385, one side that the translation pushed away the piece 385 is provided with drives the casting die 387, the fixed connection ring 386 is installed to one side of activity through-hole 382, the fixed connection ring 386 is connected with roof pressure pole 37, first activity groove 3861 has all been seted up to the both sides of fixed connection ring 386.
Specifically, the preliminarily shaped combined film 7 passes through a first group of first flattening rollers 412 and a second flattening roller 423 to be flattened, the combined film 7 in a transmission state bypasses a heating roller 422 and then passes through a second group of first flattening rollers 412 and the second flattening roller 423 to be wound and formed through a total winding roller 13, the heating roller 422 and the combined film 7 are fully attached to each other by utilizing the traction effect of two flattening members on the combined film 7, so that the combined film 7 is uniformly heated, the inner base film 5 and the two wear-resistant lining film surface layers 6 are fully mixed in a manner of gradually increasing the heat through the heating plate 32 and the heating roller 422, the edge parts are tightly attached to each other, the problem of deformation caused by excessive heating after the film is solved, and the ductility and tensile strength of the plastic film are improved to a certain extent through combined compounding of the inner base film 5 and the two wear-resistant lining film surface layers 6, under the condition of maintaining degradability, the toughness of the compounded plastic film is improved.
In order to better solve the technical problem of film abrasion caused by too fast attaching speed of the pressing disc 39, as shown in fig. 8-11, the following preferred technical solutions are provided:
the buffer 384 comprises an engagement long bar plate 3841 arranged on the surface of the U-shaped outer engagement frame 381 and a translation long groove 3842 arranged on the surface of the engagement long bar plate 3841, a long slide bar 3844 is arranged inside the translation long groove 3842, a return spring 3845 is sleeved on the surface of the long slide bar 3844, a slider 3843 is sleeved on one end of the long slide bar 3844, the return spring 3845 is arranged on one side of the slider 3843, a translation pushing piece 385 comprises a translation long plate 3851 connected with the translation sliding groove 3831 and an engagement long groove 3852 arranged on the surface of the translation long plate 3851, extension blocks 3853 are arranged at both ends of the engagement long groove 3852, the extension blocks 3853 are connected with the slider 3843, a driving piece 387 comprises a driving disk 3871 arranged on the inner side of the U-shaped positioning plate 383 and a driving shaft 3872 arranged at the center of the driving disk 3871, a sleeve joint rotating rod 3873 is arranged on the side end of the driving disk 3871, a first traction arm 3874 is sleeved on the surface of the sleeve rotating rod 3873, and an engagement patch 5 is arranged on the surface of the translation long plate 3851, the outer surface of the joining block 3875 is provided with a second movable groove 3876, the side surface of the joining block 3875 is provided with a third movable groove 3877, one end of the first traction arm bar 3874 is connected with the third movable groove 3877, one side of the joining block 3875 is provided with a second traction arm bar 3878, one end of the second traction arm bar 3878 is connected with the first movable groove 3861, and the other end of the second traction arm bar 3878 is connected with the second movable groove 3876.
Specifically, when driving disc 3871 rotated and drawn the activity of long board 3851 of translation, extension piece 3853 drove slider 3843 and carries out the translation along long slide bar 3844, under reset spring 3845's elasticity effect, promote the smoothness when long board 3851 of translation removes, strengthen the stability of pressing the pressure dish 39 when the translation on the one hand, on the other hand can promote the stationarity when pressing the pressure dish 39 and heating plate 32 laminating, can prevent to cause the film wearing and tearing because of pressing the too fast speed of laminating of pressure dish 39, do benefit to the conveying of propulsion film.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.
Claims (10)
1. A wear-resistant antibacterial degradable plastic is characterized in that: the composition comprises the following components in parts by mass: 30 parts of polyethylene plastic particles, 90 parts of polylactic acid plastic particles, 100 parts of starch particles, 7 parts of plant fibers, 50 parts of ethyl acrylate and 3 parts of plasticizer.
2. A preparation method of a wear-resistant antibacterial degradable plastic film is characterized by comprising the following steps: the method comprises the following steps:
s01, premixing raw materials of polyethylene plastic particles, polylactic acid plastic particles, starch plastic particles, plant fibers and the like to obtain a premixed material;
s02, putting the premixed material into a reaction device, drying the material through an air dehumidifier, and performing exhaust treatment;
s03, crystallizing and drying the materials by reaction equipment, melting, extruding, slicing, cooling and shaping;
s04, performing biaxial stretching film forming to form an inner base film (5), and preheating the inner base film (5) and the wear-resistant lining film surface layer (6) on the working substrate (1) through a preheating assembly (3);
s05, attaching wear-resistant lining film surface layers (6) on the upper and lower surfaces of the inner base film (5) through a flattening component (4) to flatten the wear-resistant lining film surface layers to form a combined film (7), and after the combined film is buffered, placed, dried and cooled, winding and forming the film through a winding device;
and S06, cutting a section of end film for quality detection, and checking the wear resistance, the ductility, the bending degree and the like of the film.
3. The preparation method of the wear-resistant antibacterial degradable plastic film as claimed in claim 2, wherein the preparation method comprises the following steps: a flattening lining disc (2) is arranged in the center of the upper surface of a working substrate (1), a preheating assembly (3) is sleeved on the surface of the flattening lining disc (2), a flattening assembly (4) is arranged on one side of the preheating assembly (3), an inner base film (5) is arranged on one side of the flattening lining disc (2), wear-resistant lining film surface layers (6) are arranged on two sides of the inner base film (5), a combined film (7) is arranged on the other side of the flattening lining disc (2), the flattening lining disc (2) comprises a supporting compression ring (22) and limiting edge rings (21) arranged on two sides of the supporting compression ring (22), a first branch winding roller (11) is arranged at the upper end of the working substrate (1), the inner base film (5) is sleeved on the surface of the first branch winding roller (11), second branch winding rollers (12) are arranged on two sides of the first branch winding roller (11), and the wear-resistant lining film surface layers (6) are sleeved on the surface of the second branch winding roller (12), the two groups of second branch winding rollers (12) are arranged, the first branch winding roller (11) is installed between the two groups of second branch winding rollers (12), a main winding roller (13) is arranged on one side of each second branch winding roller (12), the combined film (7) is sleeved on the surface of the main winding roller (13), supporting bottom plates (14) are arranged at the lower ends of the first branch winding roller (11), the second branch winding rollers (12) and the main winding roller (13), and the supporting bottom plates (14) are installed on the upper surface of the working substrate (1).
4. The preparation method of the wear-resistant antibacterial degradable plastic film as claimed in claim 3, wherein the preparation method comprises the following steps: the flattening assembly (4) comprises an arc-shaped outer frame (41) arranged on the outer side of the supporting and pressing ring (22) and an arc-shaped inner frame (42) arranged on the inner side of the arc-shaped outer frame (41), connecting strips (43) are arranged on the upper surfaces of the arc-shaped outer frame (41) and the arc-shaped inner frame (42), a sliding groove (44) is formed between the arc-shaped outer frame (41) and the arc-shaped inner frame (42), a first movable reserved cavity (411) is formed in the arc-shaped outer frame (41), first flattening rollers (412) are arranged at two ends of the inner side of the first movable reserved cavity (411), a second movable reserved cavity (421) is formed in the inner side of the arc-shaped inner frame (42), a heating roller (422) is arranged at the middle end of the inner side of the second movable reserved cavity (421), second flattening rollers (423) are arranged on two sides of the heating roller (422), and the first flattening rollers (412) are connected with the second flattening rollers (423).
5. The preparation method of the wear-resistant antibacterial degradable plastic film as claimed in claim 4, wherein the preparation method comprises the following steps: the inner base film (5) and the wear-resistant lining film surface layer (6) are arranged between one group of first flattening rollers (412) and the second flattening rollers (423), and the inner base film (5) and the wear-resistant lining film surface layer (6) bypass the heating roller (422) and are connected with the other group of first flattening rollers (412) and the second flattening rollers (423).
6. The preparation method of the wear-resistant antibacterial degradable plastic film as claimed in claim 3, wherein the preparation method comprises the following steps: the preheating assembly (3) comprises a supporting handle plate (31) arranged on the surface of a supporting clamping ring (22) and a heating plate (32) arranged on the side surface of the supporting handle plate (31), a supporting vertical plate (35) is arranged on one side of the heating plate (32), two ends of the supporting vertical plate (35) are respectively provided with a connecting rod (34), one end of each connecting rod (34) is provided with a joint handle disc (33), the joint handle disc (33) is connected with a limiting edge ring (21), the surface of the supporting vertical plate (35) is provided with a movable sliding groove (36), a top pressure rod (37) is arranged inside the movable sliding groove (36), the outer side of the top pressure rod (37) is sleeved with a driving outer frame (38), pressing plates (39) are arranged on the inner side of the supporting vertical plate (35), four groups of the pressing plates (39) are arranged, one end of each top pressure rod (37) is connected with the corresponding pressing plate (39), two ends of the inner side of the supporting vertical plate (35) are respectively provided with a limiting edge (351), a matching groove (352) is formed between the two groups of limiting edge strips (351), and the heating plate (32) corresponds to the matching groove (352).
7. The preparation method of the wear-resistant antibacterial degradable plastic film as claimed in claim 6, wherein the preparation method comprises the following steps: the driving outer frame (38) comprises a U-shaped outer connecting frame (381) arranged on the surface of the supporting vertical plate (35) and a movable through hole (382) formed in the center of the U-shaped outer connecting frame (381), two ends of the movable through hole (382) are provided with U-shaped positioning flitch plates (383), translation sliding grooves (3831) are formed in the upper surface and the lower surface of each U-shaped positioning flitch plate (383), buffer parts (384) are arranged on two sides of each U-shaped positioning flitch plate (383), translation pushing parts (385) are arranged on the surface of each U-shaped positioning flitch plate (383), driving parts (387) are arranged on one side of each translation pushing part (385), a fixed connecting ring (386) is arranged on one side of each movable through hole (382), each fixed connecting ring (386) is connected with the top pressure rod (37), and first movable grooves (3861) are formed in two sides of each fixed connecting ring (386).
8. The preparation method of the wear-resistant antibacterial degradable plastic film as claimed in claim 7, wherein the preparation method comprises the following steps: the buffer piece (384) comprises a connection long strip plate (3841) arranged on the surface of the U-shaped outer connection frame (381) and a translation long groove (3842) arranged on the surface of the connection long strip plate (3841), a long sliding rod (3844) is installed inside the translation long groove (3842), a return spring (3845) is sleeved on the surface of the long sliding rod (3844), a sliding block (3843) is sleeved at one end of the long sliding rod (3844), and the return spring (3845) is arranged on one side of the sliding block (3843).
9. The preparation method of the wear-resistant antibacterial degradable plastic film as claimed in claim 8, wherein the preparation method comprises the following steps: the translation pushing piece (385) comprises a translation long plate (3851) connected with the translation sliding groove (3831) and an engagement long groove (3852) arranged on the surface of the translation long plate (3851), extension blocks (3853) are mounted at two ends of the engagement long groove (3852), and the extension blocks (3853) are connected with the sliding block (3843).
10. The preparation method of the wear-resistant antibacterial degradable plastic film as claimed in claim 9, wherein the preparation method comprises the following steps: the driving and pressing part (387) comprises a driving disc (3871) and a driving shaft (3872), the driving disc (3871) is arranged on the inner side of the U-shaped positioning flitch (383), the driving shaft (3872) is arranged at the center of the driving disc (3871), a sleeved rotating rod (3873) is installed at the side end of the driving disc (3871), a first traction arm rod (3874) is sleeved on the surface of the sleeved rotating rod (3873), a connecting flitch (3875) is installed on the surface of a long translation plate (3851), a second movable groove (3876) is formed in the outer surface of the connecting flitch (3875), a third movable groove (3877) is formed in the side surface of the connecting flitch (3875), one end of the first traction arm rod (3874) is connected with the third movable groove (3877), a second traction arm rod (3878) is arranged on one side of the connecting flitch (3875), one end of the second traction arm rod (3878) is connected with the first movable groove (3861), and the other end of the second traction arm rod (3878) is connected with the second movable groove (3876).
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| CN202210229382.XA CN114603872A (en) | 2022-03-10 | 2022-03-10 | Wear-resistant antibacterial degradable plastic and preparation method of film |
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| CN202210229382.XA CN114603872A (en) | 2022-03-10 | 2022-03-10 | Wear-resistant antibacterial degradable plastic and preparation method of film |
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| CN113460759A (en) * | 2021-08-23 | 2021-10-01 | 余春庆 | Method for placing winding roller for degradable polymer film |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1768115A (en) * | 2003-03-28 | 2006-05-03 | 东丽株式会社 | Polylactic acid resin composition and preparation method thereof and poly(lactic acid) biaxially oriented film and by its moulding product that constitute |
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| US20160115081A1 (en) * | 2014-06-10 | 2016-04-28 | The Research Foundation For The State University Of New York | Low temperature, nanostructured ceramic coatings |
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