CN113026203B - graphene-PP melt-blown fabric - Google Patents
graphene-PP melt-blown fabric Download PDFInfo
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- CN113026203B CN113026203B CN202110336985.5A CN202110336985A CN113026203B CN 113026203 B CN113026203 B CN 113026203B CN 202110336985 A CN202110336985 A CN 202110336985A CN 113026203 B CN113026203 B CN 113026203B
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- 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
- D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
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- 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
- D01F1/07—Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
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- 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
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- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/02—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from cellulose, cellulose derivatives, or proteins
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- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- 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
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/18—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from other substances
-
- 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
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Artificial Filaments (AREA)
- Nonwoven Fabrics (AREA)
- Filtering Materials (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention provides graphene-PP melt-blown fabric, which comprises 5-15 parts of modified graphene material, 85-95 parts of environment-friendly material, 6-10 parts of tourmaline and 2-8 parts of multifunctional master batch by weight; the modified graphene material is prepared by co-processing the inorganic porous material and graphene, and is applied to melt-blown fabric to effectively improve the specific surface area of the melt-blown fabric fiber and greatly reduce air resistance; meanwhile, the high specific surface area is beneficial to promoting the agglomeration of stored charges of the graphene, and the filterability of the melt-blown fabric is effectively improved along with the lapse of storage time; the degradable environment-friendly material prepared by adopting the mixed natural fiber of the plant fiber and the traditional Chinese medicine fiber is used as one of the main raw materials, is safe, environment-friendly and renewable; in addition, the introduced multifunctional master batch has the functions of flame retardance, hydrophobicity, oleophobicity and salt phobicity, and the application market of the melt-blown fabric is effectively expanded.
Description
Technical Field
The invention belongs to the field of melt-blown cloth, and particularly relates to graphene-PP melt-blown cloth.
Background
In 2020, the mask becomes a necessary product for daily trips of people due to outbreak of new crown epidemic, and the melt-blown fabric is one of important raw materials of the mask and is concerned by the industry. The melt-blown fabric mainly takes polypropylene (PP) as a main raw material, and the diameter of the fiber can reach 0.5-10 microns. The superfine fiber with the unique capillary structure increases the number and the surface area of the fiber per unit area, so that the melt-blown fabric has good filtering property, shielding property, heat insulation property and oil absorption property. It can also be widely applied to the industries of filter materials, materials for medical sanitation, environmental protection materials, clothing materials, battery diaphragm materials, wiping materials and the like. However, with the expansion of market demand, especially for battery separator materials, the functional requirements for meltblown are also higher and higher, and a new round of meltblown market research is guided by the stability, breathability, durability, reproducibility, safety and environmental protection.
Therefore, in view of the above situation, the present invention provides a graphene-PP meltblown to meet the technical requirements of meltblown application.
Disclosure of Invention
The invention aims to: the graphene-PP melt-blown fabric has the characteristics of stability, air permeability, durability, reproducibility, safety, environmental friendliness and the like.
The invention is realized by the following technical scheme: a graphene-PP meltblown comprising:
the raw materials comprise 5-15 parts of modified graphene material, 85-95 parts of environment-friendly material, 6-10 parts of tourmaline and 2-8 parts of multifunctional master batch by weight;
the modified graphene material comprises the following raw materials, by weight, 30-50 parts of graphene, 15-25 parts of an inorganic porous mixture and 600 parts of a dispersion liquid, and specifically comprises the following components: (1) placing the graphene and inorganic porous mixture in a roasting furnace, heating to 800-900 ℃ at a speed of 12-18 ℃/min under the protection of argon, cooling to 300-400 ℃ at a speed of 3-5 ℃/min, grinding and crushing to within 300nm when the mixture is hot, and naturally cooling to normal temperature to obtain the graphene composite inorganic porous mixture; (2) adding the graphene composite inorganic porous mixture into the dispersion liquid, stirring at the rotation speed of 800-1200rpm, and ultrasonically dispersing for 1-2h by adopting 25-35KHZ, wherein during the ultrasonic treatment, the irradiation energy is 5-20KeV, and the irradiation dose is 200-2000-; (3) and removing the solution by using a rotary evaporator to obtain the modified graphene material.
The inorganic porous mixture is prepared from the following components in a mass ratio of 1: 1-3: 1, a mixture of nanoporous alumina, diatomaceous earth, molecular sieves;
the dispersion liquid is a BYK-190 aqueous dispersant;
the material used by the environment-friendly material and the preparation method are that the raw materials comprise 70-90 parts of PP, 50-80 parts of natural fiber, 2-4 parts of plasticizer and 2-6 parts of stabilizer by weight, the mixture of the PP and the natural fiber is respectively crushed into particles within 20um, then the particles are added into a stirrer, stirred and blended for 30-60min under the conditions of 85-105 ℃ and 300-500rpm, and the mixture is transferred to a screw extruder for extrusion granulation and crushed into particles within 20um to obtain the environment-friendly material.
The natural fiber is prepared from the following raw materials in a mass ratio of 1: 2-5 of plant fiber and Chinese medicinal fiber, wherein the plant fiber is obtained from one or more of kapok, sisal, and bamboo; the Chinese medicinal fiber is obtained from one or more of lignum Santali albi, cortex Phellodendri, Glycyrrhrizae radix, and radix Puerariae; the stabilizer is prepared from the following components in percentage by mass: 1-3 of a mixture of calcium stearate, epoxidized soybean oil; the plasticizer is prepared from the following components in percentage by mass of 1: 1.5-4 of tri-n-butyl citrate, acetyl tri-n-butyl citrate.
The multifunctional master batch comprises 70-80 parts by weight of PP main body, 10-15 parts by weight of flame retardant component and 10-15 parts by weight of super-hydrophobic component; the preparation method comprises mixing the raw materials, placing in a plasma cleaning machine, performing surface activation treatment, taking out, heating to 100-;
the flame-retardant components comprise magnesite powder and flame-retardant TPU powder; the super-hydrophobic component comprises the following components in percentage by mass of 1: 2-5: 2: 5-9 of a micro powder mixture of lotus leaves, hibiscus manihot, lily magnolia and polytetrafluoroethylene.
The preparation process of the graphene-PP melt-blown fabric comprises the following steps:
(1) respectively grinding the graphene material and the environment-friendly material according to the weight parts to be less than 5um, and uniformly mixing to obtain a mixed raw material for later use;
(2) adding the multifunctional master batch into the mixed raw materials in the step (1) and uniformly mixing to obtain a melt-blown fabric raw material;
(3) and adding the raw material of the melt-blown fabric into a screw extruder for melting, extruding and granulating, and then carrying out spinning, winding and forming through a spinning assembly to obtain the graphene-PP melt-blown fabric.
The invention has the advantages that:
1. the modified graphene material is prepared by co-processing the inorganic porous material and graphene, and is applied to melt-blown fabric to effectively improve the specific surface area of the melt-blown fabric fiber and greatly reduce air resistance; meanwhile, the high specific surface is beneficial to promoting the stored charge aggregation of the graphene, and the filterability of the melt-blown fabric is effectively improved along with the lapse of storage time;
2. the degradable environment-friendly material prepared by adopting the mixed natural fiber of the plant fiber and the traditional Chinese medicine fiber is used as one of the main raw materials, is safe, environment-friendly and renewable;
3. the multifunctional master batch has the functions of flame retardance, hydrophobicity, oleophobicity and salt phobicity, and effectively expands the application market of the melt-blown fabric.
In order to make the graphene-PP meltblown more clear, the present invention is further described with reference to the following embodiments.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example 1
A graphene-PP meltblown comprising:
the raw materials comprise 10 parts of modified graphene material, 90 parts of environment-friendly material, 8 parts of tourmaline and 5 parts of multifunctional master batch in percentage by weight;
the material and the preparation method of the modified graphene material comprise the following raw materials, by weight, 40 parts of graphene, 20 parts of an inorganic porous mixture and 500 parts of a dispersion liquid, wherein the raw materials comprise the following components: (1) placing the graphene and inorganic porous mixture in a roasting furnace, heating to 800-900 ℃ at a speed of 15 ℃/min under the protection of argon, cooling to 350 ℃ at a speed of 4 ℃/min, grinding and crushing to within 300nm while the mixture is hot, and naturally cooling to normal temperature to obtain the graphene composite inorganic porous mixture; (2) adding the graphene composite inorganic porous mixture into the dispersion liquid, stirring at the rotating speed of 800-; (3) and removing the solution by using a rotary evaporator to obtain the modified graphene material.
The inorganic porous mixture is prepared from the following components in a mass ratio of 1: 2: 1, a mixture of nanoporous alumina, diatomaceous earth, molecular sieves;
the dispersion liquid is a BYK-190 aqueous dispersant;
the environment-friendly material comprises 80 parts of PP, 65 parts of natural fiber, 3 parts of plasticizer and 4 parts of stabilizer by weight, the mixture of the PP and the natural fiber is respectively crushed into particles within 20um, then the particles are added into a stirrer, stirred and blended for 45min at 95 ℃ and 400rpm, and the mixture is transferred to a screw extruder to be extruded and granulated, and crushed into particles within 20um to obtain the environment-friendly material.
The natural fiber is prepared from the following components in percentage by mass of 1: 3.5 a mixture of plant fibers, Chinese medicinal fibers, wherein the plant fibers are obtained from kapok; the Chinese medicinal fiber is obtained from lignum Santali albi; the stabilizer is prepared from the following components in percentage by mass: 2, a mixture of calcium stearate and epoxidized soybean oil; the plasticizer is prepared from the following components in percentage by mass of 1: 3 tri-n-butyl citrate, acetyl tri-n-butyl citrate.
The multifunctional master batch comprises 75 parts by weight of PP (polypropylene) main body, 13 parts by weight of flame-retardant component and 13 parts by weight of super-hydrophobic component; the preparation method comprises mixing the raw materials, placing in a plasma cleaning machine, performing surface activation treatment, taking out, heating to 105 deg.C, grinding to uniform granules, transferring to a screw extruder, extruding, granulating, and pulverizing to obtain particles within 20 μm;
the flame-retardant components comprise magnesite powder and flame-retardant TPU powder; the super-hydrophobic component comprises the following components in percentage by mass of 1: 3.5: 2: 7 the micro powder mixture of lotus leaf, cotton rose, lily of the valley and polytetrafluoroethylene.
The preparation process of the graphene-PP melt-blown fabric comprises the following steps:
(1) respectively grinding the graphene material and the environment-friendly material according to the weight parts to be less than 5um, and uniformly mixing to obtain a mixed raw material for later use;
(2) adding the multifunctional master batch into the mixed raw materials in the step (1) and uniformly mixing to obtain a melt-blown fabric raw material;
(3) and adding the raw material of the melt-blown fabric into a screw extruder for melting, extruding and granulating, and then carrying out spinning, winding and forming through a spinning assembly to obtain the graphene-PP melt-blown fabric.
Example 2
A graphene-PP meltblown comprising:
the raw materials comprise 5 parts of modified graphene material, 85 parts of environment-friendly material, 10 parts of tourmaline and 8 parts of multifunctional master batch in percentage by weight;
the material and the preparation method of the modified graphene material comprise the following raw materials, by weight, 30 parts of graphene, 15 parts of an inorganic porous mixture and 600 parts of a dispersion liquid, and specifically comprise the following components: (1) placing the graphene and inorganic porous mixture in a roasting furnace, heating to 800 ℃ at a speed of 12 ℃/min under the protection of argon, cooling to 300 ℃ at a speed of 3 ℃/min, grinding and crushing the mixture to be within 300nm while the mixture is hot, and naturally cooling to normal temperature to obtain the graphene composite inorganic porous mixture; (2) adding the graphene composite inorganic porous mixture into the dispersion liquid, stirring at 1200rpm, and ultrasonically dispersing for 2 hours by adopting 35KHZ, wherein during the ultrasonic period, irradiation treatment is simultaneously adopted, the irradiation energy is 20KeV, and the irradiation dose is 2000; (3) and removing the solution by adopting a rotary evaporator to obtain the modified graphene material.
The inorganic porous mixture is prepared from the following components in a mass ratio of 1: 1: 1, a mixture of nanoporous alumina, diatomaceous earth, molecular sieves;
the dispersion liquid is a BYK-190 aqueous dispersant;
the environment-friendly material comprises 70 parts of PP, 50 parts of natural fiber, 4 parts of plasticizer and 6 parts of stabilizer by weight, the mixture of the PP and the natural fiber is respectively crushed into particles within 20um, then the particles are added into a stirrer, stirred and blended for 30min at the temperature of 85 ℃ and the rpm of 300, and the mixture is transferred to a screw extruder to be extruded and granulated, and crushed into particles within 20um to obtain the environment-friendly material.
The natural fiber is prepared from the following raw materials in a mass ratio of 1: 2, wherein the plant fiber is obtained from sisal and bamboo; the Chinese medicinal fiber is obtained from cortex Phellodendri; the stabilizer is prepared from the following components in percentage by mass: 1, a mixture of calcium stearate, epoxidized soybean oil; the plasticizer is prepared from the following components in percentage by mass of 1: 1.5 of tri-n-butyl citrate, acetyl tri-n-butyl citrate.
The multifunctional master batch comprises 70 parts of PP main body, 15 parts of flame-retardant component and 15 parts of super-hydrophobic component by weight; the preparation method comprises mixing the raw materials, placing in a plasma cleaning machine, performing surface activation treatment, taking out, heating to 100 deg.C, grinding to uniform granules, transferring to a screw extruder, extruding, granulating, and pulverizing to obtain particles within 20 μm;
the flame-retardant components comprise magnesite powder and flame-retardant TPU powder; the super-hydrophobic component comprises the following components in percentage by mass of 1: 2: 2: 5 the mixture of lotus leaf, cotton rose, lily of the valley and polytetrafluoroethylene.
The preparation process of the graphene-PP melt-blown fabric comprises the following steps:
(1) respectively grinding the graphene material and the environment-friendly material according to the weight parts to be less than 5um, and uniformly mixing to obtain a mixed raw material for later use;
(2) adding the multifunctional master batch into the mixed raw materials in the step (1) and uniformly mixing to obtain a melt-blown fabric raw material;
(3) and adding the raw material of the melt-blown fabric into a screw extruder for melting, extruding and granulating, and then carrying out spinning, winding and forming through a spinning assembly to obtain the graphene-PP melt-blown fabric.
Example 3
A graphene-PP meltblown comprising:
the raw materials comprise 15 parts of modified graphene material, 95 parts of environment-friendly material, 6 parts of tourmaline and 2 parts of multifunctional master batch in percentage by weight;
the modified graphene material comprises 50 parts of graphene, 25 parts of inorganic porous mixture and 400 parts of dispersion liquid by weight, and specifically comprises the following raw materials: (1) placing the graphene and inorganic porous mixture in a roasting furnace, heating to 900 ℃ at a speed of 18 ℃/min under the protection of argon, cooling to 400 ℃ at a speed of 5 ℃/min, grinding and crushing the mixture to be within 300nm while the mixture is hot, and naturally cooling to normal temperature to obtain the graphene composite inorganic porous mixture; (2) adding the graphene composite inorganic porous mixture into the dispersion liquid, stirring at the rotating speed of 800rpm, and ultrasonically dispersing for 1h by adopting 25KHZ, wherein irradiation treatment is simultaneously adopted during the ultrasonic period, the irradiation energy is 5KeV, and the irradiation dose is 200; (3) and removing the solution by using a rotary evaporator to obtain the modified graphene material.
The inorganic porous mixture is prepared from the following components in a mass ratio of 1: 3: 1, a mixture of nanoporous alumina, diatomaceous earth, molecular sieves;
the dispersion liquid is a BYK-190 aqueous dispersant;
the environment-friendly material comprises 90 parts of PP, 80 parts of natural fiber, 2 parts of plasticizer and 2 parts of stabilizer by weight, the mixture of the PP and the natural fiber is respectively crushed into particles within 20um, then the particles are added into a stirrer, stirred and blended for 60min under the conditions of 105 ℃ and 500rpm, and the mixture is transferred to a screw extruder to be extruded and granulated, and crushed into particles within 20um to obtain the environment-friendly material.
The natural fiber is prepared from the following raw materials in a mass ratio of 1: 5, wherein the plant fiber is obtained from bamboo; the Chinese medicinal fiber is obtained from Glycyrrhrizae radix; the stabilizer is prepared from the following components in percentage by mass: 3 a mixture of calcium stearate, epoxidized soybean oil; the plasticizer is prepared from the following components in percentage by mass of 1: 4 tri-n-butyl citrate, acetyl tri-n-butyl citrate.
The multifunctional master batch comprises 80 parts of PP (polypropylene) main body, 10 parts of flame-retardant component and 10 parts of super-hydrophobic component by weight; the preparation method comprises mixing the raw materials, placing in a plasma cleaning machine, performing surface activation treatment, taking out, heating to 110 deg.C, grinding to uniform granules, transferring to a screw extruder, extruding, granulating, and pulverizing to obtain particles within 20 μm;
the flame-retardant components comprise magnesite powder and flame-retardant TPU powder; the super-hydrophobic component comprises the following components in percentage by mass of 1: 5: 2: 9 mixture of folium Nelumbinis, flos Hibisci Mutabilis, herba Monochasmatis, and polytetrafluoroethylene.
The preparation process of the graphene-PP melt-blown fabric comprises the following steps:
(1) respectively grinding the graphene material and the environment-friendly material according to the weight parts to be less than 5um, and uniformly mixing to obtain a mixed raw material for later use;
(2) adding the multifunctional master batch into the mixed raw materials in the step (1) and uniformly mixing to obtain a melt-blown fabric raw material;
(3) and adding the raw material of the melt-blown fabric into a screw extruder for melting, extruding and granulating, and then carrying out spinning, winding and molding through a spinning assembly to obtain the graphene-PP melt-blown fabric.
Example 4
The graphene-PP melt-blown fabric comprises 4 parts of modified graphene material, 84 parts of environment-friendly material, 8 parts of tourmaline and 1 part of multifunctional master batch by weight;
the rest is the same as example 1.
Example 5
The graphene-PP melt-blown fabric comprises the following raw materials, by weight, 16 parts of a modified graphene material, 96 parts of an environment-friendly material, 8 parts of tourmaline and 9 parts of a multifunctional master batch;
the rest is the same as example 1.
Example 6
The graphene-PP melt-blown fabric comprises 40 parts of graphene, 14 parts of inorganic porous mixture and 500 parts of dispersion liquid by weight;
the rest is the same as example 1.
Example 7
The graphene-PP melt-blown fabric comprises 40 parts of graphene, 26 parts of inorganic porous mixture and 500 parts of dispersion liquid by weight;
the rest is the same as example 1.
Example 8
The graphene-PP melt-blown fabric comprises the following raw materials, by weight, 10 parts of a graphene material, 90 parts of an environment-friendly material, 8 parts of tourmaline and 5 parts of a multifunctional master batch;
the rest is the same as example 1.
Example 9
The graphene-PP melt-blown fabric comprises 5 parts of modified graphene material, 85 parts of environment-friendly material, 10 parts of tourmaline and 8 parts of multifunctional master batch by weight;
the material and the preparation method of the modified graphene material comprise the following raw materials, by weight, 30 parts of graphene, 15 parts of an inorganic porous mixture and 600 parts of a dispersion liquid, and specifically comprise the following components: (1) placing the graphene and inorganic porous mixture in a roasting furnace, heating to 800 ℃ at a speed of 12 ℃/min under the protection of argon, cooling to 300 ℃ at a speed of 3 ℃/min, grinding and crushing the mixture to be within 300nm while the mixture is hot, and naturally cooling to normal temperature to obtain the graphene composite inorganic porous mixture; (2) adding the graphene composite inorganic porous mixture into the dispersion liquid for uniform dispersion; (3) and removing the solution by using a rotary evaporator to obtain the modified graphene material.
The rest is the same as example 1.
Example 10
The graphene-PP melt-blown fabric comprises 5 parts of modified graphene material, 85 parts of environment-friendly material, 10 parts of tourmaline and 8 parts of multifunctional master batch by weight;
the material and the preparation method of the modified graphene material comprise the following raw materials, by weight, 30 parts of graphene, 15 parts of an inorganic porous mixture and 600 parts of a dispersion liquid, and specifically comprise the following components: (1) placing the graphene and inorganic porous mixture in a roasting furnace, heating to 800 ℃, naturally cooling to normal temperature, and grinding and crushing to obtain a graphene composite inorganic porous mixture; (2) adding the graphene composite inorganic porous mixture into the dispersion liquid, stirring at 1200rpm, and ultrasonically dispersing for 2 hours by adopting 35KHZ, wherein during the ultrasonic period, irradiation treatment is simultaneously adopted, the irradiation energy is 20KeV, and the irradiation dose is 2000; (3) and removing the solution by adopting a rotary evaporator to obtain the modified graphene material.
The rest is the same as example 1.
Example 11
The graphene-PP melt-blown fabric comprises 80 parts by weight of PP, 49 parts by weight of natural fiber, 3 parts by weight of plasticizer and 4 parts by weight of stabilizer;
the rest is the same as example 1.
Example 12
The graphene-PP melt-blown fabric comprises 80 parts by weight of PP, 81 parts by weight of natural fibers, 3 parts by weight of plasticizer and 4 parts by weight of stabilizer;
the rest is the same as example 1.
Example 13
A graphene-PP melt-blown fabric is prepared by respectively crushing raw materials including 80 parts by weight of PP, 3 parts by weight of plasticizer and 4 parts by weight of stabilizer into particles within 20um, adding the particles into a stirrer, stirring and blending at 95 ℃ and 400rpm for 45min, transferring the mixture to a screw extruder, extruding and granulating, and crushing to within 20 um.
The rest is the same as example 1.
Example 14
The graphene-PP melt-blown fabric comprises 75 parts by weight of PP main body, 9 parts by weight of flame retardant component and 9 parts by weight of super-hydrophobic component;
the rest is the same as example 1.
Example 15
The graphene-PP melt-blown fabric comprises 75 parts by weight of PP main body, 16 parts by weight of flame retardant component and 16 parts by weight of super-hydrophobic component;
the rest is the same as example 1.
Test of
Test 1
In order to better illustrate various performances of the graphene-PP meltblown prepared by the method disclosed by the invention and more intuitively reflect the differences of the inorganic nano ceramic coatings prepared by the methods of the embodiments, the performances are tested according to the detection standard of the meltblown, the principle of multiple tests is followed, and the optimal scheme is preferably selected, wherein the test of the degradation performance is as follows: taking the initial weight (W0) of the material before degradation, putting the material into 0.1N hydrochloric acid solution according to the solid-to-liquid ratio of 1.0g/mg, preserving at constant temperature of 60 ℃, replacing the hydrochloric acid solution every 10 days, taking out the residual solid every 20 days until 100 days, and recording the weights of W20, W40, W60, W80 and W100 after vacuum drying to the constant weight; the weight loss is respectively (W0-W20)/W0 × 100%, (W0-W40)/W0 × 100%, (W0-W60)/W0 × 100%, (W0-W80)/W0 × 100%, and (W0-W100)/W0 × 100%; the weight loss is used to express the degradation rate. Specific results are summarized in tables 1 and 2 below:
table 1 melt-blown fabric performance conditions table 1
Table 2 melt-blown fabric performance conditions table 2
From the data in tables 1 and 2 of the above melt-blown fabric performance conditions, it can be seen that:
1. the performance data tested in the examples are comprehensively compared, so that the effects of the examples 1, 2 and 3 are better, and the best effect is particularly realized in the example 1;
2. in comparison with example 1, the raw material ratios of the components in examples 4 and 5 are out of the technical scope of the invention, and the corresponding technical parameters such as filtration efficiency, air resistance, flame retardant effect, degradation performance and the like are all different from the former;
3. in comparative example 1, the addition amount of the inorganic porous mixture of the modified graphene materials in examples 6 and 7 is not satisfactory, and too little or too much influences the result, especially the gas resistance;
4. compared with the prior art, the preparation method has the advantages that the graphene in the raw materials of the embodiment 1 and the embodiment 8 is not modified, the preparation processes of the modified graphene of the embodiments 9 and 10 are out of the technical range of the invention, and the filtration efficiency of the prepared melt-blown fabric is not as high as that of the prepared melt-blown fabric;
5. in comparative example 1, natural fibers of the environment-friendly materials in examples 11, 12 and 13 are used little, much or not used, and the degradability of the melt-blown fabric is greatly influenced;
6. the flame retardant component and the super-hydrophobic component in the multifunctional master batch have obvious influence on the flame retardant grade and the filtering effect of the melt-blown fabric, which can be obtained by comparing examples 14 and 15 with example 1.
Claims (3)
1. The utility model provides a graphite alkene-PP meltblown which characterized in that: the raw materials comprise 5-15 parts of modified graphene material, 85-95 parts of environment-friendly material, 6-10 parts of tourmaline and 2-8 parts of multifunctional master batch in parts by weight;
the modified graphene material comprises the following raw materials, by weight, 30-50 parts of graphene, 15-25 parts of an inorganic porous mixture and 600 parts of a dispersion liquid, and specifically comprises the following components: (1) placing the graphene and inorganic porous mixture in a roasting furnace, heating to 800-900 ℃ at a speed of 12-18 ℃/min under the protection of argon, cooling to 300-400 ℃ at a speed of 3-5 ℃/min, grinding and crushing to within 300nm when the mixture is hot, and naturally cooling to normal temperature to obtain the graphene composite inorganic porous mixture; (2) adding the graphene composite inorganic porous mixture into the dispersion liquid, stirring at the rotation speed of 800-1200rpm, and ultrasonically dispersing for 1-2h by adopting 25-35KHZ, wherein during the ultrasonic treatment, the irradiation energy is 5-20KeV, and the irradiation dose is 200-2000-; (3) removing the solution by using a rotary evaporator to obtain a modified graphene material;
the materials used by the environment-friendly material and the preparation method are that the raw materials comprise 70-90 parts of PP, 50-80 parts of natural fiber, 2-4 parts of plasticizer and 2-6 parts of stabilizer by weight, the mixture of the PP and the natural fiber is respectively crushed into particles within 20um, then the particles are added into a stirrer, stirred and blended for 30-60min under the conditions of 85-105 ℃ and 300-500rpm, and then the mixture is transferred to a screw extruder for extrusion granulation and crushed into particles within 20um to obtain the environment-friendly material;
the natural fiber is prepared from the following raw materials in a mass ratio of 1: 2-5 of plant fiber and Chinese medicinal fiber, wherein the plant fiber is obtained from one or more of kapok, sisal, and bamboo; the Chinese medicinal fiber is obtained from one or more of lignum Santali albi, cortex Phellodendri, Glycyrrhrizae radix, and radix Puerariae; the stabilizer is prepared from the following components in percentage by mass: 1-3 of a mixture of calcium stearate, epoxidized soybean oil; the plasticizer is prepared from the following components in percentage by mass of 1: 1.5-4 of a mixture of tri-n-butyl citrate, acetyl tri-n-butyl citrate;
the multifunctional master batch comprises 70-80 parts of PP (polypropylene) main body, 10-15 parts of flame retardant component and 10-15 parts of super-hydrophobic component by weight; the preparation method comprises mixing the raw materials, placing in a plasma cleaning machine, performing surface activation treatment, taking out, heating to 100-; the flame-retardant components comprise magnesite powder and flame-retardant TPU powder; the super-hydrophobic component comprises the following components in percentage by mass of 1: 2-5: 2: 5-9 of a micro powder mixture of lotus leaves, hibiscus manihot, lily magnolia and polytetrafluoroethylene.
2. The graphene-PP meltblown of claim 1, wherein: the inorganic porous mixture is prepared from the following components in a mass ratio of 1: 1-3: 1, a mixture of nanoporous alumina, diatomaceous earth, molecular sieves; the dispersion liquid is a BYK-190 aqueous dispersant.
3. The graphene-PP meltblown of claim 1, wherein: the preparation process of the graphene-PP melt-blown fabric comprises the following steps:
(1) respectively grinding the graphene material and the environment-friendly material according to the weight parts to be less than 5um, and uniformly mixing to obtain a mixed raw material for later use;
(2) adding the multifunctional master batch into the mixed raw materials in the step (1) and uniformly mixing to obtain a melt-blown fabric raw material;
(3) and adding the raw material of the melt-blown fabric into a screw extruder for melting, extruding and granulating, and then carrying out spinning, winding and forming through a spinning assembly to obtain the graphene-PP melt-blown fabric.
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| CN107286473A (en) * | 2017-08-01 | 2017-10-24 | 山东圣泉新材料股份有限公司 | A kind of modified polypropylene agglomerate, fusion spray cloth and its preparation method and application |
| CN107744689A (en) * | 2017-10-13 | 2018-03-02 | 陈木镇 | A kind of filtering material with bacteriostasis and preparation method thereof |
| CN108641301A (en) * | 2018-06-05 | 2018-10-12 | 芜湖市艾德森自动化设备有限公司 | A kind of preparation method of heat conduction porous graphene-epoxy resin composite material |
| US11641012B2 (en) * | 2019-01-14 | 2023-05-02 | Global Graphene Group, Inc. | Process for producing graphene/silicon nanowire hybrid material for a lithium-ion battery |
| CN109824978A (en) * | 2019-01-18 | 2019-05-31 | 中国航发北京航空材料研究院 | A kind of graphene/polypropylene composite materials master batch, fusion spray cloth and preparation method thereof |
| CN110975435A (en) * | 2019-12-23 | 2020-04-10 | 应城市天润产业用布有限责任公司 | Composite filtering material for industrial dust removal and preparation process thereof |
| CN111535025A (en) * | 2020-05-11 | 2020-08-14 | 苏州信义大时代网络科技有限公司 | Preparation method of bacteriostatic non-woven fabric for lower-part turnover type mask |
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