CN113463406A - Soft wear-resistant non-woven fabric and preparation method thereof - Google Patents
Soft wear-resistant non-woven fabric and preparation method thereof Download PDFInfo
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- CN113463406A CN113463406A CN202110803297.5A CN202110803297A CN113463406A CN 113463406 A CN113463406 A CN 113463406A CN 202110803297 A CN202110803297 A CN 202110803297A CN 113463406 A CN113463406 A CN 113463406A
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 72
- 238000002360 preparation method Methods 0.000 title abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 69
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical class O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000006087 Silane Coupling Agent Substances 0.000 claims abstract description 45
- 229920002635 polyurethane Polymers 0.000 claims abstract description 27
- 239000004814 polyurethane Substances 0.000 claims abstract description 27
- 239000004964 aerogel Substances 0.000 claims abstract description 25
- -1 polypropylene Polymers 0.000 claims abstract description 22
- 239000006185 dispersion Substances 0.000 claims abstract description 21
- 125000003277 amino group Chemical group 0.000 claims abstract description 20
- 239000004743 Polypropylene Substances 0.000 claims abstract description 17
- 229920001155 polypropylene Polymers 0.000 claims abstract description 17
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 239000004965 Silica aerogel Substances 0.000 claims abstract description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 48
- 238000003756 stirring Methods 0.000 claims description 40
- 238000010438 heat treatment Methods 0.000 claims description 33
- 239000000155 melt Substances 0.000 claims description 32
- 238000009987 spinning Methods 0.000 claims description 29
- 238000002156 mixing Methods 0.000 claims description 22
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 21
- 239000000203 mixture Substances 0.000 claims description 21
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Natural products CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 19
- 238000006243 chemical reaction Methods 0.000 claims description 16
- 238000005507 spraying Methods 0.000 claims description 16
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 14
- 238000005299 abrasion Methods 0.000 claims description 14
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 14
- 150000001875 compounds Chemical class 0.000 claims description 14
- 230000002787 reinforcement Effects 0.000 claims description 14
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- 229920003009 polyurethane dispersion Polymers 0.000 claims description 11
- 239000000243 solution Substances 0.000 claims description 10
- 238000007664 blowing Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 8
- 229920002503 polyoxyethylene-polyoxypropylene Polymers 0.000 claims description 8
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 7
- 239000007864 aqueous solution Substances 0.000 claims description 7
- 238000000498 ball milling Methods 0.000 claims description 7
- NIMLQBUJDJZYEJ-UHFFFAOYSA-N isophorone diisocyanate Chemical compound CC1(C)CC(N=C=O)CC(C)(CN=C=O)C1 NIMLQBUJDJZYEJ-UHFFFAOYSA-N 0.000 claims description 7
- 229920001451 polypropylene glycol Polymers 0.000 claims description 7
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000002791 soaking Methods 0.000 claims description 6
- 238000009210 therapy by ultrasound Methods 0.000 claims description 6
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 5
- 150000001412 amines Chemical class 0.000 claims description 5
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 125000003396 thiol group Chemical group [H]S* 0.000 claims description 5
- 239000002518 antifoaming agent Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000004821 distillation Methods 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 3
- 238000001132 ultrasonic dispersion Methods 0.000 claims description 3
- UEEJHVSXFDXPFK-UHFFFAOYSA-O N-dimethylethanolamine Chemical compound C[NH+](C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-O 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 claims description 2
- XXBDWLFCJWSEKW-UHFFFAOYSA-N dimethylbenzylamine Chemical compound CN(C)CC1=CC=CC=C1 XXBDWLFCJWSEKW-UHFFFAOYSA-N 0.000 claims description 2
- RBNPOMFGQQGHHO-UHFFFAOYSA-N glyceric acid Chemical compound OCC(O)C(O)=O RBNPOMFGQQGHHO-UHFFFAOYSA-N 0.000 claims description 2
- 239000003999 initiator Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 4
- 230000000052 comparative effect Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 230000006872 improvement Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
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- 239000004744 fabric Substances 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 238000013329 compounding Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000007779 soft material Substances 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910000914 Mn alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000005660 hydrophilic surface Effects 0.000 description 1
- 230000007794 irritation Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
- D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/0086—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique
- D06N3/0088—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin
- D06N3/009—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the application technique by directly applying the resin by spraying components on the web
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
- D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06N3/042—Acrylic polymers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2201/00—Chemical constitution of the fibres, threads or yarns
- D06N2201/02—Synthetic macromolecular fibres
- D06N2201/0281—Polyurethane fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2201/00—Chemical constitution of the fibres, threads or yarns
- D06N2201/06—Animal fibres, e.g. hair, wool, silk
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
- D06N2209/00—Properties of the materials
- D06N2209/10—Properties of the materials having mechanical properties
- D06N2209/105—Resistant to abrasion, scratch
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Artificial Filaments (AREA)
Abstract
The invention provides a soft wear-resistant non-woven fabric and a preparation method thereof, and belongs to the technical field of non-woven fabrics. The modified silk fiber/polyurethane aerogel is prepared from modified silk fibers, polypropylene resin, modified silicon dioxide aerogel and polyurethane aqueous dispersion; the modified silk fiber is silk fiber with the surface modified by a silane coupling agent with sulfydryl; the modified silica aerogel is silica aerogel with the surface modified by a silane coupling agent with amino groups. The non-woven fabric prepared by the invention has the advantages of high abrasion-proof effect, high elongation, good softness, obviously improved surface smoothness of the non-woven fabric, reduced friction coefficient, improved abrasion-proof performance and wide application prospect.
Description
Technical Field
The invention relates to the technical field of non-woven fabrics, in particular to a soft wear-resistant non-woven fabric and a preparation method thereof.
Background
Nonwoven fabrics (also known as Non-Woven fabrics) are made of oriented or random fibers. It is called a cloth because of its appearance and certain properties. The non-woven fabric has the characteristics of moisture resistance, air permeability, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity or irritation, rich color, low price, recycling and the like. For example, the polypropylene (pp material) granules are mostly adopted as raw materials and are produced by a continuous one-step method of high-temperature melting, spinning, laying a line and hot-pressing coiling. The non-woven fabric product has the advantages of rich color, brightness, fashion, environmental protection, wide application, elegant appearance, various patterns and styles, light weight, environmental protection and recycling, and is internationally recognized as an environmental protection product for protecting the earth ecology. The product is suitable for industries such as agricultural films, shoemaking, leather making, mattresses, primary and secondary quilts, decoration, chemical engineering, printing, automobiles, building materials, furniture and the like, and industries such as clothing linings, medical and sanitary disposable operating gowns, masks, hats, bed sheets, hotel disposable tablecloths, beauty treatment, saunas and even modern fashionable gift bags, fine product bags, shopping bags, advertising bags and the like.
The existing wear-resistant modification method of the non-woven fabric is to attach wear-resistant glue, even a hard wear-resistant glue layer, to two surfaces of the non-woven fabric, so that although the wear-resistant effect is achieved, the softness and the specificity of the non-woven fabric are lost, and the non-woven fabric cannot be recognized by consumers. Secondly, the polypropylene spun-bonded non-woven fabric is hard in hand feeling after being subjected to surface hydrophilic finishing due to the characteristics of the polypropylene material, and if a slipping agent is added for spinning and then the hydrophilic surface finishing is performed, the hydrophilic effect of the product is possibly ineffective. In addition, the existing production process for carrying out hydrophilic modification on polypropylene by blending and spinning hydrophilic master batches is high in production cost and has the problem of stability of the production process.
Patent CN107523938B super-soft non-woven fabric and super-soft hydrophilic non-woven fabric discloses super-soft non-woven fabric and super-soft hydrophilic non-woven fabric, which are formed by hot rolling and consolidation of a soft layer and an adhesive surface layer, wherein the net forming gram weight ratio of the soft layer is more than or equal to 70 percent, and the net forming gram weight ratio of the adhesive surface layer is less than or equal to 30 percent; the adhesive performance of the adhesive surface is improved, the glue application amount is greatly reduced, and the light and thin feeling of a non-woven fabric product is improved. However, although the non-woven fabric is light and thin, the non-woven fabric does not have good wear resistance, and is easy to wear and break when being prepared into clothes, so that the service life of the fabric is seriously influenced.
Patent CN107524015B "a wear-resistant non-woven fabric and a preparation method thereof" discloses a wear-resistant non-woven fabric, which comprises a layer of non-woven fabric and wear-resistant coatings coated on two side surfaces of the non-woven fabric; the wear-resistant coating comprises gypsum whiskers, acrylic resin, high-manganese alloy, silicon carbide and hexagonal boron nitride, the non-woven fabric is immersed in the coating dispersion liquid and then dried to obtain the wear-resistant non-woven fabric, and the non-woven fabric is modified through compounding of inorganic matters, alloy and high-molecular compounds, so that the wear-resistant non-woven fabric is obtained, the raw material cost is high, and the prepared non-woven fabric is hard and poor in softness.
Disclosure of Invention
The invention aims to provide a soft wear-resistant non-woven fabric and a preparation method thereof, and the prepared non-woven fabric has the advantages of wear resistance, high elongation, good softness, obviously improved surface smoothness of the non-woven fabric, reduced friction coefficient and improved wear resistance.
The technical scheme of the invention is realized as follows:
the invention provides a soft wear-resistant non-woven fabric which is prepared from modified silk fibers, polypropylene resin, modified silicon dioxide aerogel and polyurethane aqueous dispersion; the modified silk fiber is silk fiber with the surface modified by a silane coupling agent with sulfydryl; the modified silica aerogel is silica aerogel with the surface modified by a silane coupling agent with amino groups.
As a further improvement of the present invention, the preparation method of the modified silica aerogel is as follows: adding the silicon dioxide aerogel into ethanol, performing ultrasonic dispersion uniformly, adding a silane coupling agent with amino groups according to the final mass fraction of 2-5wt%, heating to 70-90 ℃, stirring for reaction for 5-10h, filtering, washing with ethanol, and drying to obtain the modified silicon dioxide aerogel.
As a further improvement of the invention, the silane coupling agent with amino groups is selected from at least one of KH550, KH602 and KH 792; preferably, the compound mixture is a compound mixture of KH550 and KH792, and the mass ratio is (3-4): 2.
as a further improvement of the invention, the aqueous polyurethane dispersion is prepared by the following method: mixing isophorone diisocyanate and polypropylene glycol, heating to 80-100 ℃, adding a catalyst, stirring for reaction for 4-7h, adding 1, 4-butanediol for reaction for 3-5h, continuously adding 2-5wt% of triethylamine aqueous solution, controlling the pH value of the mixture to 6-8, uniformly stirring, carrying out reduced pressure distillation to remove acetone, adding a defoaming agent, and uniformly mixing to obtain the polyurethane aqueous dispersion.
As a further improvement of the present invention, the initiator is selected from at least one of bis (dimethylamino) ethyl ether, dibutyl tin dilaurate, stannous octoate, N-dimethylethanolamine, N-dimethylbenzylamine; the defoaming agent is at least one selected from emulsified silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether and polyoxypropylene glycerol ether.
As a further development of the invention, the aqueous polyurethane dispersion has a solids content of 55 to 65%.
As a further improvement of the invention, the preparation method of the modified silk fiber comprises the following steps: soaking natural silk fibers in ethanol, performing ultrasonic treatment for 20-40min, adding 1-3wt% of silane coupling agent with sulfydryl, heating to 65-85 ℃, stirring for reacting for 2-4h, filtering, washing with ethanol, and drying to obtain the modified silk fibers.
As a further improvement of the invention, the silane coupling agent with mercapto groups is selected from at least one of KH580 and KH590, preferably the compound mixture of KH580 and KH590, and the mass ratio is 2: (1-3).
The invention further provides a preparation method of the soft wear-resistant non-woven fabric, which comprises the following steps:
s1, preparing premix: mixing 10-20 parts by weight of modified silicon dioxide aerogel and 20-35 parts by weight of polyurethane aqueous dispersion, heating to 45-50 ℃, stirring and reacting for 1-2h, adding 25-50 parts by weight of modified silk fiber, heating to 55-70 ℃, stirring and reacting for 2-4h, and ball-milling for 1-2h to obtain a premix;
s2, preparing a melt: extruding and melting 100-150 parts by weight of polypropylene resin through a screw extruder to obtain a melt;
s3, spinning and net forming: spraying the melt obtained in the step S2 through a spinneret plate of a spinning machine, cooling and solidifying the melt into filaments, drawing the filaments through a drawing air flow, blowing the filaments to a roller, uniformly spraying the premix obtained in the step S1, and collecting the premix on the roller to obtain a fiber web;
s4, reinforcing and finishing: and (5) overlapping the fiber webs obtained in the step (S3) and feeding the fiber webs into a solution jet spinning area for reinforcement to obtain the soft wear-resistant non-woven fabric.
As a further improvement of the invention, the melting temperature is 170-200 ℃.
The invention has the following beneficial effects: referring to fig. 1, the modified silica aerogel with a large number of pore structures of the present invention is modified by a silane coupling agent with amino groups, the amino groups on the surface can react with the prepared aqueous polyurethane dispersion, the aqueous polyurethane dispersion can deblock the isocyanate groups in the molecule under specific conditions, and the activated isocyanate groups can react with the amino groups on the surface of the modified silica aerogel to crosslink, thereby obtaining a silica-polyurethane material with a large number of pore structures;
the surface of the modified silk fiber is modified by a silane coupling agent with sulfydryl, the silk fiber is natural protein fiber and carries a large amount of sulfydryl and disulfide bonds, the silane coupling agent is fixed on the surface of the silk fiber by generating hydrogen bonds or forming disulfide bonds on the silane coupling agent with sulfydryl, the other end of the silk fiber is a silicon-oxygen bond, and the silk fiber can be stably bonded with a silicon dioxide structure after being contacted with the obtained silicon dioxide-polyurethane material with a large amount of pore structures, so that a wear-resistant and soft material is obtained, the material is sprayed on the surface of a polypropylene spinning net to form a fiber net, and the non-woven fabric obtained after finishing and curing has good wear-resistant and soft characteristics.
The non-woven fabric prepared by the invention has the advantages of high abrasion-proof effect, high elongation, good softness, obviously improved surface smoothness of the non-woven fabric, reduced friction coefficient, improved abrasion-proof performance and wide application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a functional diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
Example 1
The embodiment provides a soft wear-resistant non-woven fabric and a preparation method thereof, and the preparation method comprises the following steps:
(1) preparing modified silicon dioxide aerogel: adding 10g of silicon dioxide aerogel into 200mL of ethanol, performing ultrasonic dispersion of 1000W uniformly, adding a silane coupling agent with amino groups according to the final mass fraction of 2wt%, heating to 70 ℃, stirring for reaction for 5 hours, filtering, washing with ethanol, and drying to obtain modified silicon dioxide aerogel; the silane coupling agent with amino is a compound mixture of KH550 and KH792, and the mass ratio is 3: 2;
(2) preparation of aqueous polyurethane dispersions: mixing 20g of isophorone diisocyanate and 35g of polypropylene glycol, heating to 80 ℃, adding 0.5g of bis (dimethylamino) ethyl ether, stirring for reaction for 4-7h, adding 1.2g of 1, 4-butanediol, reacting for 3h, continuously adding 2wt% of triethylamine aqueous solution, controlling the pH value of the mixture to be 6, uniformly stirring, distilling under reduced pressure to remove acetone, adding 0.5g of polyoxyethylene polyoxypropylene pentaerythritol ether, and uniformly mixing to obtain a polyurethane aqueous dispersion with the solid content of 55%.
(3) Preparing modified silk fibers: soaking 10g of natural silk fiber in 200mL of ethanol, performing ultrasonic treatment at 1000W for 20min, adding a silane coupling agent with sulfydryl according to the final mass fraction of 1wt%, heating to 65 ℃, stirring for reaction for 2h, filtering, washing with ethanol, and drying to obtain modified silk fiber, wherein the silane coupling agent with sulfydryl is a compound mixture of KH580 and KH590, and the mass ratio is 2: 1.
(4) preparation of premix: mixing 10g of modified silicon dioxide aerogel and 20g of polyurethane aqueous dispersion, heating to 45 ℃, stirring for reacting for 1h, adding 25g of modified silk fiber, heating to 55 ℃, stirring for reacting for 2h, and ball-milling for 1h to obtain the premix.
(5) Preparation of the melt: 100g of polypropylene resin is extruded and melted by a screw extruder to obtain a melt, and the melting temperature is 170 ℃.
(6) Spinning and laying: spraying the melt obtained in the step (5) through a spinneret plate of a spinning machine, cooling and solidifying the melt into filaments, drawing the filaments through a drawing air flow, blowing the filaments to a roller, uniformly spraying the premix obtained in the step S1, and collecting the premix on the roller to obtain a fiber web;
(7) reinforcement and finishing: and (4) overlapping the fiber webs obtained in the step (6) and entering a solution jet spinning area for reinforcement to obtain the soft wear-resistant non-woven fabric.
Example 2
The embodiment provides a soft wear-resistant non-woven fabric and a preparation method thereof, and the preparation method comprises the following steps:
(1) preparing modified silicon dioxide aerogel: adding 10g of silicon dioxide aerogel into 200mL of ethanol, uniformly dispersing by 2000W of ultrasonic waves, adding a silane coupling agent with amino groups according to the final mass fraction of 5wt%, heating to 90 ℃, stirring for reaction for 10 hours, filtering, washing with ethanol, and drying to obtain modified silicon dioxide aerogel; the silane coupling agent with amino is a compound mixture of KH550 and KH792, and the mass ratio is 2: 1;
(2) preparation of aqueous polyurethane dispersions: mixing 20g of isophorone diisocyanate and 35g of polypropylene glycol, heating to 100 ℃, adding 0.5g of stannous octoate, stirring for reaction for 7 hours, adding 1.2g of 1, 4-butanediol, reacting for 5 hours, continuously adding 5wt% of triethylamine aqueous solution, controlling the pH value of the mixture to be 8, uniformly stirring, carrying out reduced pressure distillation to remove acetone, adding 0.5g of emulsified silicone oil, and uniformly mixing to obtain the polyurethane aqueous dispersion with the solid content of 55-65%.
(3) Preparing modified silk fibers: soaking 10g of natural silk fiber in 200mL of ethanol, carrying out ultrasonic treatment at 2000W for 40min, adding a silane coupling agent with sulfydryl according to the final mass fraction of 1-3wt%, heating to 85 ℃, stirring for reaction for 4h, filtering, washing with ethanol, and drying to obtain the modified silk fiber, wherein the silane coupling agent with sulfydryl is a compound mixture of KH580 and KH590, and the mass ratio is 2: 3.
(4) preparation of premix: mixing 20g of modified silicon dioxide aerogel and 35g of polyurethane aqueous dispersion, heating to 50 ℃, stirring for reacting for 2h, adding 50g of modified silk fiber, heating to 70 ℃, stirring for reacting for 4h, and ball-milling for 2h to obtain the premix.
(5) Preparation of the melt: 150g of polypropylene resin was extruded and melted by a screw extruder to obtain a melt having a melting temperature of 200 ℃.
(6) Spinning and laying: spraying the melt obtained in the step (5) through a spinneret plate of a spinning machine, cooling and solidifying the melt into filaments, drawing the filaments through a drawing air flow, blowing the filaments to a roller, uniformly spraying the premix obtained in the step S1, and collecting the premix on the roller to obtain a fiber web;
(7) reinforcement and finishing: and (4) overlapping the fiber webs obtained in the step (6) and entering a solution jet spinning area for reinforcement to obtain the soft wear-resistant non-woven fabric.
Example 3
The embodiment provides a soft wear-resistant non-woven fabric and a preparation method thereof, and the preparation method comprises the following steps:
(1) preparing modified silicon dioxide aerogel: adding 10g of silicon dioxide aerogel into 200mL of ethanol, uniformly dispersing by 1500W of ultrasonic waves, adding a silane coupling agent with amino groups according to the final mass fraction of 3.5wt%, heating to 80 ℃, stirring for reaction for 7 hours, filtering, washing with ethanol, and drying to obtain modified silicon dioxide aerogel; the silane coupling agent with amino is a compound mixture of KH550 and KH792, and the mass ratio is 3.5: 2;
(2) preparation of aqueous polyurethane dispersions: mixing 20g of isophorone diisocyanate and 35g of polypropylene glycol, heating to 90 ℃, adding 0.5g of dibutyl tin dilaurate, stirring for reacting for 5 hours, adding 1.2g of 1, 4-butanediol, reacting for 4 hours, continuously adding 3.5wt% of triethylamine aqueous solution, controlling the pH value of the mixture to be 7, uniformly stirring, distilling under reduced pressure to remove acetone, adding 0.5g of polyoxyethylene polyoxypropylene amine ether, and uniformly mixing to obtain the polyurethane aqueous dispersion with the solid content of 60%.
(3) Preparing modified silk fibers: soaking 10g of natural silk fiber in 200mL of ethanol, performing 1500W ultrasonic treatment for 30min, adding a silane coupling agent with sulfydryl according to the final mass fraction of 2wt%, heating to 75 ℃, stirring for reaction for 3h, filtering, washing with ethanol, and drying to obtain modified silk fiber, wherein the silane coupling agent with sulfydryl is a compound mixture of KH580 and KH590, and the mass ratio is 1: 1.
(4) preparation of premix: and (2) mixing 14g of modified silica aerogel and 27g of polyurethane aqueous dispersion, heating to 47 ℃, stirring for reacting for 1.5h, adding 32g of modified silk fiber, heating to 62 ℃, stirring for reacting for 3h, and ball-milling for 1.5h to obtain the premix.
(5) Preparation of the melt: 125g of polypropylene resin is extruded and melted by a screw extruder to obtain a melt, and the melting temperature is 185 ℃.
(6) Spinning and laying: spraying the melt obtained in the step (5) through a spinneret plate of a spinning machine, cooling and solidifying the melt into filaments, drawing the filaments through a drawing air flow, blowing the filaments to a roller, uniformly spraying the premix obtained in the step S1, and collecting the premix on the roller to obtain a fiber web;
(7) reinforcement and finishing: and (4) overlapping the fiber webs obtained in the step (6) and entering a solution jet spinning area for reinforcement to obtain the soft wear-resistant non-woven fabric.
Example 4
Compared with example 3, the silane coupling agent with amino group is KH550, and other conditions are not changed.
Example 5
The silane coupling agent having an amino group was KH792, compared with example 3, all other conditions were unchanged.
Example 6
Compared with example 3, the silane coupling agent with mercapto group is KH580, and other conditions are not changed.
Example 7
Compared with example 3, the silane coupling agent with mercapto group is KH590, and other conditions are not changed.
Comparative example 1
Compared with example 3, the silica aerogel is not modified, and other conditions are not changed.
(1) Preparation of aqueous polyurethane dispersions: mixing 20g of isophorone diisocyanate and 35g of polypropylene glycol, heating to 90 ℃, adding 0.5g of dibutyl tin dilaurate, stirring for reacting for 5 hours, adding 1.2g of 1, 4-butanediol, reacting for 4 hours, continuously adding 3.5wt% of triethylamine aqueous solution, controlling the pH value of the mixture to be 7, uniformly stirring, distilling under reduced pressure to remove acetone, adding 0.5g of polyoxyethylene polyoxypropylene amine ether, and uniformly mixing to obtain the polyurethane aqueous dispersion with the solid content of 60%.
(2) Preparing modified silk fibers: soaking 10g of natural silk fiber in 200mL of ethanol, performing 1500W ultrasonic treatment for 30min, adding a silane coupling agent with sulfydryl according to the final mass fraction of 2wt%, heating to 75 ℃, stirring for reaction for 3h, filtering, washing with ethanol, and drying to obtain modified silk fiber, wherein the silane coupling agent with sulfydryl is a compound mixture of KH580 and KH590, and the mass ratio is 1: 1.
(3) preparation of premix: mixing 14g of silicon dioxide aerogel and 27g of polyurethane aqueous dispersion, heating to 47 ℃, stirring for reacting for 1.5h, adding 32g of modified silk fiber, heating to 62 ℃, stirring for reacting for 3h, and ball-milling for 1.5h to obtain the premix.
(4) Preparation of the melt: 125g of polypropylene resin is extruded and melted by a screw extruder to obtain a melt, and the melting temperature is 185 ℃.
(5) Spinning and laying: spraying the melt obtained in the step (4) through a spinneret plate of a spinning machine, cooling and solidifying the melt into filaments, drawing the filaments through a drawing air flow, blowing the filaments to a roller, uniformly spraying the premix obtained in the step S1, and collecting the premix on the roller to obtain a fiber web;
(6) reinforcement and finishing: and (5) overlapping the fiber webs obtained in the step (5) and entering a solution jet spinning area for reinforcement to obtain the soft wear-resistant non-woven fabric.
Comparative example 2
Compared with the example 3, the silk fiber is not modified, and other conditions are not changed.
(1) Preparing modified silicon dioxide aerogel: adding 10g of silicon dioxide aerogel into 200mL of ethanol, uniformly dispersing by 1500W of ultrasonic waves, adding a silane coupling agent with amino groups according to the final mass fraction of 3.5wt%, heating to 80 ℃, stirring for reaction for 7 hours, filtering, washing with ethanol, and drying to obtain modified silicon dioxide aerogel; the silane coupling agent with amino is a compound mixture of KH550 and KH792, and the mass ratio is 3.5: 2;
(2) preparation of aqueous polyurethane dispersions: mixing 20g of isophorone diisocyanate and 35g of polypropylene glycol, heating to 90 ℃, adding 0.5g of dibutyl tin dilaurate, stirring for reacting for 5 hours, adding 1.2g of 1, 4-butanediol, reacting for 4 hours, continuously adding 3.5wt% of triethylamine aqueous solution, controlling the pH value of the mixture to be 7, uniformly stirring, distilling under reduced pressure to remove acetone, adding 0.5g of polyoxyethylene polyoxypropylene amine ether, and uniformly mixing to obtain the polyurethane aqueous dispersion with the solid content of 60%.
(3) Preparation of premix: and (2) mixing 14g of modified silica aerogel and 27g of polyurethane aqueous dispersion, heating to 47 ℃, stirring for reacting for 1.5h, adding 32g of silk fiber, heating to 62 ℃, stirring for reacting for 3h, and ball-milling for 1.5h to obtain the premix.
(4) Preparation of the melt: 125g of polypropylene resin is extruded and melted by a screw extruder to obtain a melt, and the melting temperature is 185 ℃.
(5) Spinning and laying: spraying the melt obtained in the step (4) through a spinneret plate of a spinning machine, cooling and solidifying the melt into filaments, drawing the filaments through a drawing air flow, blowing the filaments to a roller, uniformly spraying the premix obtained in the step S1, and collecting the premix on the roller to obtain a fiber web;
(6) reinforcement and finishing: and (5) overlapping the fiber webs obtained in the step (5) and entering a solution jet spinning area for reinforcement to obtain the soft wear-resistant non-woven fabric.
Comparative example 3
Compared with example 3, no premix was added and other conditions were unchanged.
(1) Preparation of the melt: 125g of polypropylene resin is extruded and melted by a screw extruder to obtain a melt, and the melting temperature is 185 ℃.
(2) Spinning and laying: spraying the melt obtained in the step (1) through a spinneret plate of a spinning machine, cooling and solidifying the melt into filaments, drawing the filaments through a drawing air flow, blowing the filaments to a roller, uniformly spraying the premix obtained in the step S1, and collecting the premix on the roller to obtain a fiber web;
(3) reinforcement and finishing: and (3) overlapping the fiber webs obtained in the step (2) and entering a solution jet spinning area for reinforcement to obtain the soft wear-resistant non-woven fabric.
Test example 1 mechanical Property test
The soft and abrasion-resistant nonwovens prepared in examples 1 to 7 and comparative examples 1 to 3 of the present invention and the similar products on the market were tested for tensile breaking strength by a model YG028PC multifunctional electronic fabric strength tester (Baien instruments, Inc., Winzhou) according to GB/T3923.2-2013, part 2, determination of tensile properties of textile fabrics, breaking strength.
The soft, abrasion-resistant nonwovens prepared in examples 1 to 7 and comparative examples 1 to 3 according to the invention and the like commercially available were tested for tear strength using a model YG (B)033A fabric tearing apparatus (Wenzhou International high Performance test instruments, Inc.) according to GB/T3917.1-1997, part 1, determination of tear Strength of textile fabrics.
The test results are shown in Table 1.
TABLE 1
As can be seen from the table, the soft wear-resistant non-woven fabric prepared by the embodiment of the invention has good mechanical properties.
Test example 2 softness test
The soft and abrasion-resistant nonwoven fabrics prepared in examples 1 to 7 and comparative examples 1 to 3 of the present invention and the similar products on the market were tested for longitudinal softness and transverse softness by reference to the test method GB/T8942-2016, and the results are shown in Table 2.
TABLE 2
Test example 3 abrasion resistance test
The soft wear-resistant non-woven fabrics prepared in the embodiments 1 to 7 and the comparative examples 1 to 3 of the invention and similar products sold in the market are cut into a circle with the radius of 1cm, small holes are reserved in the middle, the non-woven fabrics are cleaned, and the mass of the non-woven fabrics after drying is m0Carrying out wear resistance test, wherein the mass after 3000 times of wear is m1Formula for calculating wear amountIs X = (1-m)1/m0) X 100%. The results are shown in Table 3.
TABLE 3
Compared with the example 3, the silane coupling agent with amino groups in the examples 4 and 5 is KH550 or KH792, the mechanical property, the softness and the wear resistance of the silane coupling agent are reduced to a certain degree, and the compounding of the KH550 and the KH792 has a synergistic effect.
Compared with the example 3, in the examples 6 and 7, the silane coupling agent with mercapto groups is KH580 or KH590, and the mechanical property, softness and wear resistance of the silane coupling agent are reduced to a certain extent, so that the compounding of KH580 and KH590 has a synergistic effect.
Compared with example 3, the silica aerogel of comparative example 1 is not modified, the mechanical property and the wear resistance are obviously reduced, and the silica aerogel which is not modified can not react with the polyurethane aqueous dispersion, so that a stable composite material can not be formed. The modified silica aerogel is modified by a silane coupling agent with amino groups, the amino groups on the surface can react with the prepared polyurethane aqueous dispersion, the polyurethane aqueous dispersion can deblock the isocyanate groups in the molecules under specific conditions, and the activated isocyanate groups can react with the amino groups on the surface of the modified silica aerogel for crosslinking, so that the silica-polyurethane material with a large number of pore structures is obtained.
Compared with the embodiment 3, the silk fiber of the comparative example 2 is not modified, and the wear resistance, the mechanical property and the softness are greatly reduced. The silk fiber cannot be combined with a silicon dioxide-polyurethane material with a large number of pore structures without modification to form a composite material with softness and wear resistance. The silk fiber is subjected to hydrogen bonding or disulfide bond formation in a silane coupling agent with sulfydryl, so that the silane coupling agent is fixed on the surface of the silk fiber, the other end of the silk fiber is in silicon-oxygen bond linkage with the obtained silicon dioxide-polyurethane material with a large number of pore structures, a wear-resistant and soft material is obtained, the material is sprayed on the surface of a polypropylene spinning net to form a fiber net, and the non-woven fabric obtained after finishing and curing has good wear-resistant and soft characteristics.
Comparative example 3 compared with example 3, the composite material having abrasion resistance and flexibility after modified silk fiber is bonded with silica-polyurethane material having a large number of pore structures without adding premix, thereby resulting in significant deterioration of the performance of the prepared non-woven fabric.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A soft wear-resistant non-woven fabric is characterized by being prepared from modified silk fibers, polypropylene resin, modified silicon dioxide aerogel and polyurethane aqueous dispersion; the modified silk fiber is silk fiber with the surface modified by a silane coupling agent with sulfydryl; the modified silica aerogel is silica aerogel with the surface modified by a silane coupling agent with amino groups.
2. The soft and abrasion-resistant non-woven fabric according to claim 1, wherein the modified silica aerogel is prepared by the following method: adding the silicon dioxide aerogel into ethanol, performing ultrasonic dispersion uniformly, adding a silane coupling agent with amino groups according to the final mass fraction of 2-5wt%, heating to 70-90 ℃, stirring for reaction for 5-10h, filtering, washing with ethanol, and drying to obtain the modified silicon dioxide aerogel.
3. The soft abrasion-resistant nonwoven fabric according to claim 2, wherein the silane coupling agent having an amino group is at least one selected from the group consisting of KH550, KH602 and KH 792; preferably, the compound mixture is a compound mixture of KH550 and KH792, and the mass ratio is (3-4): 2.
4. the soft and abrasion-resistant nonwoven fabric of claim 1, wherein the aqueous polyurethane dispersion is prepared by the following method: mixing isophorone diisocyanate and polypropylene glycol, heating to 80-100 ℃, adding a catalyst, stirring for reaction for 4-7h, adding 1, 4-butanediol for reaction for 3-5h, continuously adding 2-5wt% of triethylamine aqueous solution, controlling the pH value of the mixture to 6-8, uniformly stirring, carrying out reduced pressure distillation to remove acetone, adding a defoaming agent, and uniformly mixing to obtain the polyurethane aqueous dispersion.
5. The soft, abrasion-resistant nonwoven fabric of claim 4 wherein said initiator is selected from at least one of bis (dimethylamino) ethyl ether, dibutyl tin dilaurate, stannous octoate, N-dimethylethanolamine, N-dimethylbenzylamine; the defoaming agent is at least one selected from emulsified silicone oil, polyoxyethylene polyoxypropylene pentaerythritol ether, polyoxyethylene polyoxypropylene amine ether and polyoxypropylene glycerol ether.
6. The soft, abrasion-resistant nonwoven fabric of claim 4 wherein the aqueous polyurethane dispersion has a solids content of 55-65%.
7. The soft and wear-resistant non-woven fabric according to claim 1, wherein the modified silk fiber is prepared by the following steps: soaking natural silk fibers in ethanol, performing ultrasonic treatment for 20-40min, adding 1-3wt% of silane coupling agent with sulfydryl, heating to 65-85 ℃, stirring for reacting for 2-4h, filtering, washing with ethanol, and drying to obtain the modified silk fibers.
8. The soft abrasion-resistant non-woven fabric according to claim 7, wherein the silane coupling agent with mercapto groups is selected from at least one of KH580 and KH590, preferably a compounded mixture of KH580 and KH590, and the mass ratio is 2: (1-3).
9. A method of making a soft, abrasion resistant nonwoven fabric as claimed in any one of claims 1 to 8, comprising the steps of:
s1, preparing premix: mixing 10-20 parts by weight of modified silicon dioxide aerogel and 20-35 parts by weight of polyurethane aqueous dispersion, heating to 45-50 ℃, stirring and reacting for 1-2h, adding 25-50 parts by weight of modified silk fiber, heating to 55-70 ℃, stirring and reacting for 2-4h, and ball-milling for 1-2h to obtain a premix;
s2, preparing a melt: extruding and melting 100-150 parts by weight of polypropylene resin through a screw extruder to obtain a melt;
s3, spinning and net forming: spraying the melt obtained in the step S2 through a spinneret plate of a spinning machine, cooling and solidifying the melt into filaments, drawing the filaments through a drawing air flow, blowing the filaments to a roller, uniformly spraying the premix obtained in the step S1, and collecting the premix on the roller to obtain a fiber web;
s4, reinforcing and finishing: and (5) overlapping the fiber webs obtained in the step (S3) and feeding the fiber webs into a solution jet spinning area for reinforcement to obtain the soft wear-resistant non-woven fabric.
10. The method as claimed in claim 9, wherein the melting temperature is 170-200 ℃.
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Application publication date: 20211001 |