CN114941207A - Carbon aerogel melt-blown fabric and preparation method thereof - Google Patents
Carbon aerogel melt-blown fabric and preparation method thereof Download PDFInfo
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- CN114941207A CN114941207A CN202210752684.5A CN202210752684A CN114941207A CN 114941207 A CN114941207 A CN 114941207A CN 202210752684 A CN202210752684 A CN 202210752684A CN 114941207 A CN114941207 A CN 114941207A
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- carbon aerogel
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- titanium dioxide
- hot air
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- 239000004966 Carbon aerogel Substances 0.000 title claims abstract description 104
- 239000004744 fabric Substances 0.000 title claims abstract description 68
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 76
- 239000000463 material Substances 0.000 claims abstract description 39
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 38
- 238000001914 filtration Methods 0.000 claims abstract description 36
- -1 polypropylene Polymers 0.000 claims abstract description 28
- 239000007822 coupling agent Substances 0.000 claims abstract description 27
- 239000002270 dispersing agent Substances 0.000 claims abstract description 27
- 239000003381 stabilizer Substances 0.000 claims abstract description 27
- 239000004743 Polypropylene Substances 0.000 claims abstract description 26
- 229920001155 polypropylene Polymers 0.000 claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 25
- 229920005989 resin Polymers 0.000 claims abstract description 25
- 239000000835 fiber Substances 0.000 claims description 33
- 239000002245 particle Substances 0.000 claims description 30
- 239000000155 melt Substances 0.000 claims description 27
- 239000002994 raw material Substances 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 20
- 238000002156 mixing Methods 0.000 claims description 14
- 238000009966 trimming Methods 0.000 claims description 14
- 238000004804 winding Methods 0.000 claims description 14
- 230000015271 coagulation Effects 0.000 claims description 7
- 238000005345 coagulation Methods 0.000 claims description 7
- 238000001125 extrusion Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 239000002918 waste heat Substances 0.000 claims description 7
- 238000005303 weighing Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- QNVRIHYSUZMSGM-UHFFFAOYSA-N hexan-2-ol Chemical class CCCCC(C)O QNVRIHYSUZMSGM-UHFFFAOYSA-N 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- BSWXAWQTMPECAK-UHFFFAOYSA-N 6,6-diethyloctyl dihydrogen phosphate Chemical class CCC(CC)(CC)CCCCCOP(O)(O)=O BSWXAWQTMPECAK-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- 239000004964 aerogel Substances 0.000 claims description 2
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000001913 cellulose Chemical class 0.000 claims description 2
- 229920002678 cellulose Chemical class 0.000 claims description 2
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 2
- 239000000194 fatty acid Substances 0.000 claims description 2
- 229930195729 fatty acid Natural products 0.000 claims description 2
- 239000004745 nonwoven fabric Substances 0.000 claims description 2
- 229920002401 polyacrylamide Chemical class 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- VXUYXOFXAQZZMF-UHFFFAOYSA-N titanium(IV) isopropoxide Chemical compound CC(C)O[Ti](OC(C)C)(OC(C)C)OC(C)C VXUYXOFXAQZZMF-UHFFFAOYSA-N 0.000 claims description 2
- 230000000844 anti-bacterial effect Effects 0.000 abstract description 14
- 230000035699 permeability Effects 0.000 abstract description 7
- 230000000052 comparative effect Effects 0.000 description 12
- 229910010413 TiO 2 Inorganic materials 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 5
- 230000001954 sterilising effect Effects 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 230000003385 bacteriostatic effect Effects 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000000704 physical effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007783 nanoporous material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002906 medical waste Substances 0.000 description 1
- 239000004750 melt-blown nonwoven Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009103 reabsorption Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000352 supercritical drying Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/098—Melt spinning methods with simultaneous stretching
- D01D5/0985—Melt spinning methods with simultaneous stretching by means of a flowing gas (e.g. melt-blowing)
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a carbon aerogel melt-blown fabric and a preparation method thereof, wherein the carbon aerogel melt-blown fabric comprises the following components in parts by weight: 80-90 parts of polypropylene resin, 5-10 parts of carbon aerogel material, 5-10 parts of titanium dioxide, 0.2-1 part of stabilizer, 0.5-2 parts of coupling agent and 0.1-0.5 part of dispersant. The carbon aerogel melt-blown fabric prepared from the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent has good antibacterial property, filtering rate and air permeability, and particularly, the carbon aerogel and the titanium dioxide are added simultaneously, so that the antibacterial property and the filtering property of the carbon aerogel melt-blown fabric are effectively improved, and the application range of the carbon aerogel melt-blown fabric is expanded.
Description
Technical Field
The invention belongs to the technical field of melt-blown cloth, and particularly relates to carbon aerogel melt-blown cloth and a preparation method thereof.
Background
The melt-blown fabric is a melt-blown non-woven fabric formed by drafting a polymer melt trickle extruded from a spinneret orifice by adopting high-speed hot air to form superfine fibers and bonding the superfine fibers. The melt-blown fabric takes polypropylene as a main raw material and is widely applied to the fields of filter materials, medical and health materials, environmental protection materials, clothing materials, battery diaphragm materials, wiping materials and the like.
The melt-blown fabric has good air filtering performance, is a relatively good mask material, and has a protection mechanism that: the electrostatic adsorption effect is generated on the melt-blown cloth by the electret of the melt-blown cloth, so that the effect of blocking tiny particles such as bacteria, dust and the like is achieved. However, the protective performance of the mask made of the melt-blown fabric is greatly reduced after the mask is used for 3 to 4 hours, the replacement frequency of the mask is high, the use efficiency is low, and the treatment capacity of medical waste is large.
Carbon aerogel is a novel carbon material with a continuous nano-porous material structure, has the performances of high specific surface area, high porosity, good conductivity, controllable pore diameter and the like, and is widely concerned. Resorcinol and formaldehyde are used as raw materials, organic electrode carbon with low density and low thermal conductivity is prepared through processes of sol-intermediate, supercritical drying and the like, and carbon aerogel is prepared through a further high-temperature carbonization process. The pioneering work lays a foundation for the development and application of the carbon aerogel material, and raises the heat trend of carbon aerogel research. Researchers are developing new application fields of carbon aerogel, and particularly, the carbon aerogel shows excellent and irreplaceable characteristics when being used as an adsorption material.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a carbon aerogel meltblown, which solves the problems of the existing meltblown, such as antibacterial sterilization, PM2.5 filtration rate, bacterial filtration rate and poor air permeability;
the invention also aims to provide a preparation method of the carbon aerogel melt-blown fabric.
In order to achieve the purpose, the technical scheme of the invention is realized as follows: the carbon aerogel melt-blown fabric comprises the following components in parts by weight: 80-90 parts of polypropylene resin, 5-10 parts of carbon aerogel material, 5-10 parts of titanium dioxide, 0.2-1 part of stabilizer, 0.5-2 parts of coupling agent and 0.1-0.5 part of dispersing agent.
Preferably, the carbon aerogel material is at least one of carbon aerogel and activated carbon aerogel; and the particle size of the carbon aerogel material is 0.5-10 um.
Preferably, the particle size of the titanium dioxide is 0.5-5 um.
It is noted that, the carbon aerogel meltblown fabric antibacterial property and filterability are effectively improved by adding the carbon aerogel and the titanium dioxide simultaneously, so that the application range of the carbon aerogel meltblown fabric is expanded, wherein the action mechanism is as follows:
TiO 2 the reaction mechanism of the photocatalytic material is as follows: anatase-type TiO 2 Excited under illumination to generate hole-electron pairs, which move to TiO 2 Surface, and H in air 2 O、O 2 OH-reacts to generate OH free radicals, OH can oxidize almost all organic matters and partial inorganic matters and finally decompose the organic matters and partial inorganic matters into CO 2 And H 2 O and other harmless substances. And TiO 2 2 Does not participate in the reaction per se, can be effective for a long time, and is TiO 2 No photo corrosion, good acid and alkali resistance, stable chemical property and no toxicity to organisms. The carbon aerogel is a novel carbon material with a continuous nano porous material structure, has the performances of high specific surface area, high porosity, good conductivity, controllable pore diameter and the like, and has the important characteristic of strong adsorption performance. The combination of the carbon aerogel and the titanium dioxide accords with the concentration difference gradient catalysis of adsorption, catalysis, reabsorption and recatalysis, and can greatly improve the adsorption and catalysis performances.
Preferably, the stabilizer is organotin; the coupling agent is at least one of butyl titanate and isopropyl titanate; the dispersing agent is at least one of methyl amyl alcohol, polyacrylamide, triethyl hexyl phosphoric acid, cellulose derivatives and polyethylene glycol fatty acid ester.
The invention also discloses a preparation method of the carbon aerogel meltblown, which is realized by the following steps:
(1) respectively weighing the following components in parts by weight: 80-90 parts of polypropylene resin, 5-10 parts of carbon aerogel material, 5-10 parts of titanium dioxide, 0.2-1 part of stabilizer, 0.5-2 parts of coupling agent and 0.1-0.5 part of dispersant for later use;
(2) sequentially adding the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the step (1) into a mixing box, and stirring and mixing to obtain a raw material mixture;
(3) adding the raw material mixture obtained in the step (2) into a screw extruder for melt extrusion to obtain a melt;
(4) filtering the melt obtained in the step (3) by a filtering device to obtain a filtered melt;
(5) after the melt obtained in the step (4) is subjected to high-speed hot air flow to draw the trickle, cold air on two sides is mixed into the hot air flow for drawing, so that the trickle is cooled and formed, and the superfine fiber is obtained;
(6) and (3) collecting the superfine fibers obtained in the step (5) on a coagulation net curtain, mutually bonding the superfine fibers together by utilizing self waste heat, trimming the superfine fibers by using a trimming machine, and winding the superfine fibers on a winding roller to obtain melt-blown fabrics with different specifications, namely the carbon aerogel melt-blown fabric.
The diameter of the superfine fiber can reach 0.5-10 microns, and the superfine fiber has a unique capillary structure, so that the quantity and the surface area of the superfine fiber in a unit area are increased by the capillary structure, and the melt-blown fabric has good air filtration.
Preferably, the temperature of the screw and the die head of the screw extruder is 230 ℃ at 170-.
Preferably, when the melt stream is drawn by the high-speed hot air flow in the step (5), the temperature of the hot air is 270 ℃ and 300 ℃, and the pressure of the hot air is 0.2-0.5 MPa.
Preferably, a vacuum suction device is arranged at the lower part of the condensation screen curtain in the step (6), so that the fibers are collected on the condensation screen curtain and are thermally bonded into a non-woven fabric by self; the receiving distance of the net formation is 10-25cm, and the net formation speed is 700-3000 m/h.
Compared with the prior art, the carbon aerogel melt-blown fabric disclosed and protected by the invention and the preparation method thereof have the following excellent effects:
the carbon aerogel melt-blown fabric prepared from the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent has good antibacterial property, filtration rate and air permeability, particularly, the carbon aerogel and the titanium dioxide are added simultaneously, so that the antibacterial property and the filtration property to PM2.5 and bacteria of the carbon aerogel melt-blown fabric are effectively improved, specifically, the antibacterial property of the carbon aerogel melt-blown fabric is up to 99.5%, and the filtration property is up to 99.6%, so that the application range of the carbon aerogel melt-blown fabric is enlarged, and in addition, the carbon aerogel melt-blown fabric prepared by the method can highly make up the defects left by the existing melt-blown fabric;
in addition, the preparation method has mild melting conditions and low production difficulty. And the prepared melt-blown fabric has excellent quality and performance, and is worthy of wide popularization and application.
Detailed Description
The technical solutions disclosed in the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it should be understood 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 obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The embodiment of the invention discloses a preparation method of carbon aerogel melt-blown fabric, which is used for solving the technical problems of the existing melt-blown fabric such as antibacterial sterilization, PM2.5 filtration rate, bacterial filtration rate and poor air permeability.
The technical solution of the present invention will be further described with reference to the following specific examples.
Example 1
The carbon aerogel melt-blown fabric provided by the embodiment of the invention comprises the following components in parts by weight: 80 parts of polypropylene resin, 8 parts of carbon aerogel material with the particle size of 0.5-10um, 10 parts of titanium dioxide with the particle size of 0.5-5um, 0.5 part of stabilizing agent, 1 part of coupling agent and 0.5 part of dispersing agent.
The embodiment of the invention also provides a preparation method of the carbon aerogel melt-blown fabric, which is realized by the following steps:
(1) respectively weighing the following components in parts by weight: 80 parts of polypropylene resin, 8 parts of carbon aerogel material with the particle size of 0.5-10um, 10 parts of titanium dioxide with the particle size of 0.5-5um, 0.5 part of stabilizer, 1 part of coupling agent and 0.5 part of dispersant;
(2) sequentially adding the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the step (1) into a mixing box, and stirring and mixing to obtain a raw material mixture;
(3) adding the raw material mixture obtained in the step (2) into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 180 ℃, 210 ℃ in a 1 area, 215 ℃ in a 2 area, 230 ℃ in a 3 area, 230 ℃ in a flange, 225 ℃ in an elbow and 10Hz in a main frequency of the screw.
(4) Filtering the melt obtained in the step (3) by a filtering device to obtain a filtered melt;
(5) after the melt obtained in the step (4) is subjected to high-speed hot air flow to draw the trickle, cold air on two sides is mixed into the hot air flow for drawing, so that the trickle is cooled and formed, and the superfine fiber is obtained; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 280 ℃, and the pressure of the hot air is 0.3 MPa.
(6) And (3) collecting the superfine fibers obtained in the step (5) on a coagulation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 10cm, the net forming speed is 1000m/h), mutually bonding the superfine fibers together by utilizing the self waste heat, trimming by a trimming machine, and winding on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 2
The carbon aerogel melt-blown fabric provided by the embodiment of the invention comprises the following components in parts by weight: 85 parts of polypropylene resin, 5 parts of carbon aerogel material with the particle size of 0.5-10um, 8 parts of titanium dioxide with the particle size of 0.5-5um, 0.5 part of stabilizer, 1 part of coupling agent and 0.5 part of dispersant.
The embodiment of the invention also provides a preparation method of the carbon aerogel melt-blown fabric, which is realized by the following steps:
(1) respectively weighing the following components in parts by weight: 85 parts of polypropylene resin, 5 parts of carbon aerogel material with the particle size of 0.5-10um, 8 parts of titanium dioxide with the particle size of 0.5-5um, 0.5 part of stabilizer, 1 part of coupling agent and 0.5 part of dispersant;
(2) sequentially adding the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the step (1) into a mixing box, and stirring and mixing to obtain a raw material mixture;
(3) adding the raw material mixture obtained in the step (2) into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 195 ℃, 205 ℃ in a 1 area, 215 ℃ in a 2 area, 230 ℃ in a 3 area, 230 ℃ in a flange, 225 ℃ in an elbow and 10Hz in a main frequency of the screw.
(4) Filtering the melt obtained in the step (3) by a filtering device to obtain a filtered melt;
(5) after the melt obtained in the step (4) is subjected to high-speed hot air flow to draw the trickle, cold air on two sides is mixed into the hot air flow for drawing, so that the trickle is cooled and formed, and the superfine fiber is obtained; wherein, when the melt stream is drawn by high-speed hot air flow, the temperature of the hot air is 300 ℃, and the pressure of the hot air is 0.4 MPa.
(6) And (3) collecting the superfine fibers obtained in the step (5) on a coagulation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 15cm, the net forming speed is 1500m/h), mutually bonding the superfine fibers together by utilizing the self waste heat, trimming by a trimming machine, and winding on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 3
The carbon aerogel melt-blown fabric provided by the embodiment of the invention comprises the following components in parts by weight: 89 parts of polypropylene resin, 5 parts of carbon aerogel material with the particle size of 0.5-10um, 5 parts of titanium dioxide with the particle size of 0.5-5um, 0.2 part of stabilizer, 0.5 part of coupling agent and 0.3 part of dispersant.
The embodiment of the invention also provides a preparation method of the carbon aerogel melt-blown fabric, which is realized by the following steps:
(1) respectively weighing the following components in parts by weight: 90 parts of polypropylene resin, 5 parts of carbon aerogel material with the particle size of 0.5-10um, 4 parts of titanium dioxide with the particle size of 0.5-5um, 0.2 part of stabilizer, 0.5 part of coupling agent and 0.3 part of dispersant;
(2) sequentially adding the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the step (1) into a mixing box, and stirring and mixing to obtain a raw material mixture;
(3) adding the raw material mixture obtained in the step (2) into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 195 ℃, 205 ℃ in a 1 area, 215 ℃ in a 2 area, 235 ℃ in a 3 area, 230 ℃ in a flange, 225 ℃ in an elbow and 20Hz in a primary frequency of the screw.
(4) Filtering the melt obtained in the step (3) by a filtering device to obtain a filtered melt;
(5) after the melt obtained in the step (4) is subjected to high-speed hot air flow to draw the trickle, cold air on two sides is mixed into the hot air flow for drawing, so that the trickle is cooled and formed, and the superfine fiber is obtained; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 300 ℃, and the pressure of the hot air is 0.4 MPa.
(6) And (3) collecting the superfine fibers obtained in the step (5) on a coagulation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 20cm, the net forming speed is 2000m/h), mutually bonding the superfine fibers together by utilizing the self waste heat, trimming by a trimming machine, and winding on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 4
The carbon aerogel melt-blown fabric provided by the embodiment of the invention comprises the following components in parts by weight: 85 parts of polypropylene resin, 6 parts of carbon aerogel material with the particle size of 0.5-10um, 6.5 parts of titanium dioxide with the particle size of 0.5-5um, 0.5 part of stabilizing agent, 1.5 parts of coupling agent and 0.5 part of dispersing agent.
The embodiment of the invention also provides a preparation method of the carbon aerogel melt-blown fabric, which is realized by the following steps:
(1) respectively weighing the following components in parts by weight: 87 parts of polypropylene resin, 6 parts of carbon aerogel material with the particle size of 0.5-10um, 4.5 parts of titanium dioxide with the particle size of 0.5-5um, 0.5 part of stabilizer, 1.5 parts of coupling agent and 0.5 part of dispersant;
(2) sequentially adding the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the step (1) into a mixing box, and stirring and mixing to obtain a raw material mixture;
(3) adding the raw material mixture obtained in the step (2) into a screw extruder for melt extrusion to obtain a melt; when the raw material mixture is placed into a screw extruder, the temperature of a screw and a die head of the screw extruder is 220 ℃, 205 ℃ in a 1 zone, 215 ℃ in a 2 zone, 230 ℃ in a 3 zone, 230 ℃ in a flange, 225 ℃ in an elbow and 15Hz in a main frequency of the screw.
(4) Filtering the melt obtained in the step (3) by a filtering device to obtain a filtered melt;
(5) after the melt obtained in the step (4) is subjected to high-speed hot air flow to draw the trickle, cold air on two sides is mixed into the hot air flow for drawing, so that the trickle is cooled and formed, and the superfine fiber is obtained; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 2800 ℃, and the pressure of the hot air is 0.5 MPa.
(6) And (3) collecting the superfine fibers obtained in the step (5) on a coagulation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 20cm, the net forming speed is 2000m/h), mutually bonding the superfine fibers together by utilizing the self waste heat, trimming by a trimming machine, and winding on a winding roller to obtain the melt-blown fabrics with various specifications.
Example 5
The carbon aerogel melt-blown fabric provided by the embodiment of the invention comprises the following components in parts by weight: 82 parts of polypropylene resin, 10 parts of carbon aerogel material with the particle size of 0.5-10um, 6 parts of titanium dioxide with the particle size of 0.5-5um, 0.5 part of stabilizer, 1 part of coupling agent and 0.5 part of dispersant.
The embodiment of the invention also provides a preparation method of the carbon aerogel melt-blown fabric, which is realized by the following steps:
(1) respectively weighing the following components in parts by weight: 82 parts of polypropylene resin, 10 parts of carbon aerogel material with the particle size of 0.5-10um, 6 parts of titanium dioxide with the particle size of 0.5-5um, 0.5 part of stabilizer, 1 part of coupling agent and 0.5 part of dispersant;
(2) sequentially adding the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the step (1) into a mixing box, and stirring and mixing to obtain a raw material mixture;
(3) adding the raw material mixture obtained in the step (2) into a screw extruder for melt extrusion to obtain a melt; wherein, when the raw material mixture is put into a screw extruder, the temperature of a screw and a die head of the screw extruder is 195 ℃, 205 ℃ in a 1 area, 215 ℃ in a 2 area, 230 ℃ in a 3 area, 235 ℃ in a flange temperature, 225 ℃ in an elbow temperature and 15Hz of primary frequency of the screw.
(4) Filtering the melt obtained in the step (3) by a filtering device to obtain a filtered melt;
(5) after the melt obtained in the step (4) is subjected to high-speed hot air flow to draw the trickle, cold air on two sides is mixed into the hot air flow for drawing, so that the trickle is cooled and formed, and the superfine fiber is obtained; wherein, when the melt stream is drafted by the high-speed hot air flow, the temperature of the hot air is 280 ℃, and the pressure of the hot air is 0.4 MPa.
(6) And (3) collecting the superfine fibers obtained in the step (5) on a coagulation net curtain with a vacuum suction device arranged at the lower part (wherein the receiving distance of the net is 25cm, the net forming speed is 3000m/h), mutually bonding the superfine fibers together by utilizing the self waste heat, trimming by a trimming machine, and winding on a winding roller to obtain the melt-blown fabrics with various specifications.
In addition, in order to further verify the non-obvious property of the carbon aerogel meltblown prepared by the technical scheme of the invention compared with the prior art, the inventor also performs the following comparative experiments, specifically comprising the following steps:
comparative example 1
Substantially the same components and preparation method as in example 1, except that no carbon aerogel was added in this comparative example 1;
comparative example 2
Basically the same components and preparation method as in example 1, except that no titanium dioxide was added in this comparative example 2;
comparative example 3
Substantially the same as the components and preparation method in example 1, except that the particle size of the carbon aerogel added in this comparative example 3 is larger than 10um, and the particle size of the titanium dioxide is larger than 5 um.
And, in order to verify the physical properties of the carbon aerogel meltblown fabrics obtained by the present invention, such as filtration rate, bacteriostasis rate, and air permeability, the physical properties of the carbon aerogel meltblown fabrics obtained in examples 1-5 and comparative examples 1-3 were tested, and the test results are shown in table 1 below.
Table 1 results of physical property measurements of carbon aerogel meltblown fabrics obtained in examples 1 to 5 and comparative examples 1 to 3:
the bacteriostasis rate, the PM2.5 filtration rate, the bacterial filtration rate and the air permeability are far superior to those of the melt-blown cloth obtained in the comparative examples 1-3; furthermore, it can be seen from the data in example 1 and comparative examples 1-2 in table 1 that the bacteriostatic and bactericidal rate and filtration rate of the obtained meltblown fabric are almost unchanged by adding only one of carbon aerogel and titanium dioxide, but the bacteriostatic and bactericidal rate and filtration rate of the carbon aerogel meltblown fabric can be effectively improved only by adding both carbon aerogel and titanium dioxide, so that in the present invention, the bacteriostatic and bactericidal rate and filtration rate of the obtained carbon aerogel meltblown fabric can be optimized only by adding both carbon aerogel and titanium dioxide, and neither of them is sufficient.
In addition, as can be seen from the data in example 1 and comparative example 3 in table 1, when the added particle size is not within the range of the particle size of the present invention, the bacteriostasis and sterilization rate and filtration rate of the obtained carbon aerogel meltblown are far lower than those of the carbon aerogel meltblown obtained in example 1 of the present invention, so that the particle sizes of the carbon aerogel and titanium dioxide are also important for preparing the carbon aerogel meltblown having better sterilization rate and filtration rate.
In summary, the carbon aerogel meltblown fabric prepared from the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent has good antibacterial property, filtration rate and air permeability, and particularly, the carbon aerogel meltblown fabric has the advantages that the antibacterial property and the filtration property on PM2.5 and bacteria are effectively improved by simultaneously adding the carbon aerogel and the titanium dioxide, specifically, the antibacterial property of the carbon aerogel meltblown fabric is as high as 99%, and the filtration property of the carbon aerogel meltblown fabric is as high as 99.85%, so that the application range of the carbon aerogel meltblown fabric is expanded, and in addition, the carbon aerogel meltblown fabric prepared by the method disclosed by the invention can highly make up for the defects left in the existing meltblown fabric. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The carbon aerogel melt-blown fabric is characterized by comprising the following components in parts by weight: 80-90 parts of polypropylene resin, 5-10 parts of carbon aerogel material, 5-10 parts of titanium dioxide, 0.2-1 part of stabilizer, 0.5-2 parts of coupling agent and 0.1-0.5 part of dispersant.
2. The carbon aerogel meltblown of claim 1, wherein said carbon aerogel material is at least one of carbon aerogel and activated carbon aerogel, and wherein said carbon aerogel material has a particle size of 0.5-10 um.
3. The carbon aerogel meltblown of claim 1, wherein said titanium dioxide has a particle size of 0.5-5 um.
4. The carbon aerogel meltblown of any of claims 1-3, wherein said stabilizer is organotin; the coupling agent is at least one of butyl titanate and isopropyl titanate; the dispersing agent is at least one of methyl amyl alcohol, polyacrylamide, triethyl hexyl phosphoric acid, cellulose derivatives and polyethylene glycol fatty acid ester.
5. A method of making the carbon aerogel meltblown fabric as claimed in any of claims 1-4, comprising the steps of:
(1) respectively weighing the following components in parts by weight: 80-90 parts of polypropylene resin, 5-10 parts of carbon aerogel material, 5-10 parts of titanium dioxide, 0.2-1 part of stabilizer, 0.5-2 parts of coupling agent and 0.1-0.5 part of dispersant for later use;
(2) sequentially adding the polypropylene resin, the carbon aerogel material, the titanium dioxide, the stabilizer, the coupling agent and the dispersing agent in the step (1) into a mixing box, and stirring and mixing to obtain a raw material mixture;
(3) adding the raw material mixture obtained in the step (2) into a screw extruder for melt extrusion to obtain a melt;
(4) filtering the melt obtained in the step (3) by a filtering device to obtain a filtered melt;
(5) after the melt obtained in the step (4) is subjected to high-speed hot air flow to draw the trickle, cold air on two sides is mixed into the hot air flow for drawing, so that the trickle is cooled and formed, and the superfine fiber is obtained;
(6) and (3) collecting the superfine fibers obtained in the step (5) on a coagulation net curtain, mutually bonding the superfine fibers together by utilizing self waste heat, trimming the superfine fibers by using a trimming machine, and winding the superfine fibers on a winding roller to obtain melt-blown fabrics with different specifications, namely the carbon aerogel melt-blown fabric.
6. The preparation method of the carbon aerogel melt-blown cloth as claimed in claim 5, wherein in the step (3), when the raw material mixture is placed into the screw extruder, the temperatures of the screw and the die head of the screw extruder are 170-.
7. The method of claim 5, wherein the temperature of the hot air is 270-300 ℃ and the pressure of the hot air is 0.2-0.5MPa when the molten fine stream is drawn by the high-speed hot air stream in step (5).
8. The process for producing a carbon aerogel meltblown fabric according to claim 5, wherein said (6) is provided with a vacuum sucking means for collecting fibers on the lower portion of the screen, and thermally bonding the fibers to a nonwoven fabric by itself; wherein the receiving distance of the net forming is 10-25cm, and the net forming speed is 700-3000 m/h.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116574331A (en) * | 2023-05-31 | 2023-08-11 | 立达超微科技(安徽青阳)有限公司 | Modified melt-blown polypropylene and preparation method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100187484A1 (en) * | 2009-01-27 | 2010-07-29 | Worsley Marcus A | Mechanically robust, electrically conductive ultralow-density carbon nanotube-based aerogels |
| CN110983474A (en) * | 2019-12-20 | 2020-04-10 | 安徽玉堂雨具有限公司 | Preparation method of heat-insulating ultraviolet-resistant sun-shading cloth |
| CN111533997A (en) * | 2020-05-22 | 2020-08-14 | 中广核俊尔(浙江)新材料有限公司 | Low-VOC (volatile organic compound) antistatic polypropylene material as well as preparation method and application thereof |
| CN112251910A (en) * | 2020-09-07 | 2021-01-22 | 陕西金灃科技有限公司 | Mineral graphene melt-blown fabric and preparation method thereof |
| CN112354267A (en) * | 2020-05-20 | 2021-02-12 | 重庆文理学院 | Modified melt-blown polypropylene composite filter material and preparation method thereof |
| CN112609259A (en) * | 2020-12-16 | 2021-04-06 | 苏州薄暖御寒科技有限公司 | Modified polymer fiber and preparation method and application thereof |
| CN112853536A (en) * | 2021-02-01 | 2021-05-28 | 上海水星家用纺织品股份有限公司 | Preparation method of aerogel fiber |
| CN112933741A (en) * | 2021-01-25 | 2021-06-11 | 山西通德滤材有限公司 | Antibacterial filtering fabric and preparation method thereof |
-
2022
- 2022-06-28 CN CN202210752684.5A patent/CN114941207A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100187484A1 (en) * | 2009-01-27 | 2010-07-29 | Worsley Marcus A | Mechanically robust, electrically conductive ultralow-density carbon nanotube-based aerogels |
| CN110983474A (en) * | 2019-12-20 | 2020-04-10 | 安徽玉堂雨具有限公司 | Preparation method of heat-insulating ultraviolet-resistant sun-shading cloth |
| CN112354267A (en) * | 2020-05-20 | 2021-02-12 | 重庆文理学院 | Modified melt-blown polypropylene composite filter material and preparation method thereof |
| CN111533997A (en) * | 2020-05-22 | 2020-08-14 | 中广核俊尔(浙江)新材料有限公司 | Low-VOC (volatile organic compound) antistatic polypropylene material as well as preparation method and application thereof |
| CN112251910A (en) * | 2020-09-07 | 2021-01-22 | 陕西金灃科技有限公司 | Mineral graphene melt-blown fabric and preparation method thereof |
| CN112609259A (en) * | 2020-12-16 | 2021-04-06 | 苏州薄暖御寒科技有限公司 | Modified polymer fiber and preparation method and application thereof |
| CN112933741A (en) * | 2021-01-25 | 2021-06-11 | 山西通德滤材有限公司 | Antibacterial filtering fabric and preparation method thereof |
| CN112853536A (en) * | 2021-02-01 | 2021-05-28 | 上海水星家用纺织品股份有限公司 | Preparation method of aerogel fiber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116574331A (en) * | 2023-05-31 | 2023-08-11 | 立达超微科技(安徽青阳)有限公司 | Modified melt-blown polypropylene and preparation method thereof |
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