CN116676791B - Breathable adhesive interlining for coated fabrics and preparation method thereof - Google Patents
Breathable adhesive interlining for coated fabrics and preparation method thereof Download PDFInfo
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- CN116676791B CN116676791B CN202310656139.0A CN202310656139A CN116676791B CN 116676791 B CN116676791 B CN 116676791B CN 202310656139 A CN202310656139 A CN 202310656139A CN 116676791 B CN116676791 B CN 116676791B
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- 239000004744 fabric Substances 0.000 title claims abstract description 131
- 239000000853 adhesive Substances 0.000 title claims abstract description 46
- 230000001070 adhesive effect Effects 0.000 title claims abstract description 46
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 78
- 239000004814 polyurethane Substances 0.000 claims abstract description 53
- 229920002635 polyurethane Polymers 0.000 claims abstract description 53
- 239000004831 Hot glue Substances 0.000 claims abstract description 51
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 43
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 43
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 35
- 239000011248 coating agent Substances 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 28
- WYTZZXDRDKSJID-UHFFFAOYSA-N (3-aminopropyl)triethoxysilane Chemical compound CCO[Si](OCC)(OCC)CCCN WYTZZXDRDKSJID-UHFFFAOYSA-N 0.000 claims abstract description 25
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 23
- 238000002156 mixing Methods 0.000 claims abstract description 21
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000002844 melting Methods 0.000 claims abstract description 14
- 230000008018 melting Effects 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000007493 shaping process Methods 0.000 claims description 43
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 39
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 32
- 238000010992 reflux Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 26
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 25
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000005406 washing Methods 0.000 claims description 22
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 239000005058 Isophorone diisocyanate Substances 0.000 claims description 16
- 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 16
- 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 15
- 238000001723 curing Methods 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 12
- 238000004806 packaging method and process Methods 0.000 claims description 12
- 238000007670 refining Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 238000001291 vacuum drying Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 11
- 239000003963 antioxidant agent Substances 0.000 claims description 7
- 230000003078 antioxidant effect Effects 0.000 claims description 7
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 238000004821 distillation Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000009991 scouring Methods 0.000 claims 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 3
- 239000000376 reactant Substances 0.000 abstract description 3
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 10
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 239000013067 intermediate product Substances 0.000 description 3
- 206010013642 Drooling Diseases 0.000 description 2
- 208000008630 Sialorrhea Diseases 0.000 description 2
- 230000001476 alcoholic effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- IQPQWNKOIGAROB-UHFFFAOYSA-N isocyanate group Chemical group [N-]=C=O IQPQWNKOIGAROB-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 229920004934 Dacron® Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
- D06N3/12—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 otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
- D06N3/14—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 otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
-
- 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
- D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
- D06N3/0059—Organic ingredients with special effects, e.g. oil- or water-repellent, antimicrobial, flame-resistant, magnetic, bactericidal, odour-influencing agents; perfumes
-
- 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
- D06N2209/06—Properties of the materials having thermal properties
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to the field of adhesive lining cloth, in particular to breathable adhesive lining cloth for a coated fabric and a preparation method thereof. The invention mixes citric acid, polyethylene glycol and aminopropyl triethoxysilane to prepare a modified cross-linking agent, firstly, esterifying the citric acid and the polyethylene glycol, controlling the dosage of reactants to enable the polyethylene glycol to fully react, then adding absolute ethyl alcohol and thionyl chloride to further react with unreacted carboxyl on the citric acid, finally, grafting by using the aminopropyl triethoxysilane, introducing a silicon-oxygen bond into the modified cross-linking agent, mixing the modified cross-linking agent and polyurethane to prepare a hot melt adhesive, coating the hot melt adhesive on the surface of a base cloth, and then obtaining the heat-resistant and water-resistant breathable adhesive lining cloth through melting, processing and finishing.
Description
Technical Field
The invention relates to the technical field of adhesive lining cloth, in particular to breathable adhesive lining cloth for a coated fabric and a preparation method thereof.
Background
The coating fabric is a fabric treated by a special process, the coating adhesive is dissolved into a drooling shape by using a solvent, the drooling shape is uniformly coated on the surfaces of cotton, polyester, nylon and other fabrics by using a cylinder, a scraper or a roller, and the surface of the fabric is covered by baking to fix the adhesive. The coating fabric is often applied to the fields of national defense, navigation, fishing, offshore oil well, transportation, clothing and the like, and is a common waterproof and moisture permeable fabric.
The adhesive lining cloth is called as hot melt adhesive lining cloth, and is adhesive clothing auxiliary material formed by coating hot melt adhesive on the base cloth of woven, knitted or non-woven fabric through coating technical equipment. Under certain temperature and pressure, the adhesive is melted, and the lining cloth and the fabric are firmly attached together, so that the processing technology is simplified to the greatest extent. In the clothing field, along with the continuous improvement of life quality, the performance requirements of people on clothing are higher and higher, and the adhesive lining cloth and the coating fabric are combined to prepare clothing with different functions of water resistance, wind resistance, ventilation and the like. Therefore, there is a higher demand for the performance of the adhesive backing.
Disclosure of Invention
The invention aims to provide breathable adhesive lining cloth for a coated fabric and a preparation method thereof, so as to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
Adding citric acid, polyethylene glycol and p-toluenesulfonic acid into toluene, carrying out reflux reaction, carrying out reduced pressure distillation, adding absolute ethyl alcohol and thionyl chloride, carrying out reflux reaction, dehydrating, adding aminopropyl triethoxysilane, carrying out reflux reaction, cooling, washing and drying to obtain a modified crosslinking agent;
Step 2, mixing polyethylene glycol, 1, 4-butanediol, a modified cross-linking agent and an antioxidant, heating, stirring, uniformly mixing, vacuum drying, dehydrating, cooling, adding isophorone diisocyanate and stannous octoate, discharging after reaction, sealing, packaging, and curing in an oven to obtain the polyurethane hot melt adhesive;
And step 3, taking the base cloth, refining, washing with clear water, taking out the base cloth, and after the pre-shaping treatment, melting the polyurethane hot melt adhesive and coating the melted polyurethane hot melt adhesive on the surface of the base cloth to obtain the breathable adhesive lining cloth for the coated fabric.
In the step 1, citric acid, polyethylene glycol and p-toluenesulfonic acid are added into toluene, the temperature is raised to 130-140 ℃ for reflux, the reaction is carried out for 20-26 hours, reduced pressure distillation is carried out, absolute ethyl alcohol and thionyl chloride are added, the reflux is carried out at 70-80 ℃, the reaction is carried out for 10-15 hours, aminopropyl triethoxysilane is added after dehydration, the reflux is carried out at 90-100 ℃, the reaction is carried out for 6-8 hours, and the modified cross-linking agent is obtained after cooling, washing and drying.
In the step 1, the dosages of the components are calculated according to mole fraction, namely, 1 part of citric acid, 1-2 parts of polyethylene glycol, 0.005-0.05 part of p-toluenesulfonic acid, 2 parts of toluene, 3-3.5 parts of absolute ethyl alcohol, 2.4-3 parts of thionyl chloride and 2-2.2 parts of aminopropyl triethoxysilane.
In the step 2, the preparation method of the polyurethane hot melt adhesive specifically comprises the steps of mixing polyethylene glycol, 1, 4-butanediol, a modified cross-linking agent and an antioxidant, heating and stirring at 110-140 ℃, uniformly mixing, vacuum drying and dehydrating for 2.5 hours, cooling to 65-75 ℃, adding isophorone diisocyanate and stannous octoate, reacting for 20-30 minutes, discharging, sealing and packaging, and curing for 6-8 hours in a 70-90 ℃ oven.
In the step 2, the dosages of the components are, by weight, 70-85 parts of polyethylene glycol, 2-4 parts of 1, 4-butanediol, 1-2 parts of modified cross-linking agent, 0.1-0.2 part of antioxidant, 25-35 parts of isophorone diisocyanate and 0.05-0.1 part of stannous octoate.
In the step 3, the refining temperature is 80-100 ℃, the bath ratio is 25-30:1, and the time is 30-60 min.
Further, in the step 3, the melting temperature of the polyurethane hot melt adhesive is 150-190 ℃.
In the step 3, the base cloth sequentially passes through 9 shaping chambers, wherein the temperature of each shaping chamber is 100-120 ℃, 120-150 ℃ in the third chamber, 120-150 ℃ in the fourth chamber, 140-170 ℃ in the fifth chamber, 140-170 ℃ in the sixth chamber, 140-170 ℃ in the seventh chamber, 140-170 ℃ in the eighth chamber, 140-170 ℃ in the ninth chamber, and the speed of the motor is 30-40 m/min, and the width of the motor is 120-125 cm.
Compared with the prior art, the invention has the beneficial effects that the modified cross-linking agent is synthesized firstly, and is mixed with polyethylene glycol, 1, 4-butanediol, an antioxidant and isophorone diisocyanate to prepare the polyurethane hot melt adhesive, and the polyurethane hot melt adhesive is heated and melted and then coated on the base cloth to obtain the heat-resistant and water-resistant breathable adhesive lining cloth. The modified cross-linking agent is prepared by reacting citric acid, polyethylene glycol and aminopropyl triethoxysilane, wherein citric acid molecules contain 3 carboxyl groups and 1 hydroxyl group, the carboxyl groups can be subjected to esterification reaction with alcoholic hydroxyl groups, so that polyethylene glycol is firstly used for reacting with part of carboxyl groups of the citric acid to obtain an intermediate product with a plurality of functional hydroxyl groups, the hydroxyl groups can be reacted with isocyanate groups in polyurethane, and the intermediate product is added into the polyurethane in a cross-linking agent mode, so that the original linear structure of the polyurethane is changed to form a three-dimensional cross-linked network structure, the mechanical property of the hot melt adhesive is improved, in addition, after the aminopropyl triethoxysilane is grafted with the intermediate product, a silicon-oxygen bond is introduced into the polyurethane, the heat resistance of the polyurethane hot melt adhesive is improved, and the hot processing and heat treatment of fabrics are facilitated.
In the present invention, grafting of polyethylene glycol and aminopropyl triethoxysilane is carried out by reacting an alcoholic hydroxyl group with a carboxyl group on citric acid, and thus the amount of the reactants and the reaction sequence are limited. Experiments show that the reaction activity of polyethylene glycol and citric acid is higher, and the reaction is controllable, so that the polyethylene glycol can be fully reacted by adjusting the mol ratio (1-2) of the reactant polyethylene glycol to the citric acid to be 1, and meanwhile, the citric acid can be used for grafting aminopropyl triethoxysilane while remaining excessive unreacted carboxyl. When the reaction sequence of polyethylene glycol and aminopropyl triethoxysilane cannot be changed, the reaction needs to be carried out in an ethanol environment, namely the ethanol is excessive, if aminopropyl triethoxysilane is grafted with citric acid, three carboxyl groups of the citric acid can be completely reacted, so that the reaction with the polyethylene glycol cannot be carried out, and the obtained polyurethane hot melt adhesive has no three-dimensional network structure and has poor bonding effect.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The materials used in the invention and the sources thereof are polyethylene glycol from the next holy biotechnology, model PEG-2000, product number 60364ES76, antioxidant 1010 from the Youfeng chemical industry, and base fabric from the company of Dacron textile strength supplier, product number HY2189.
Example 1
Adding 1mol of citric acid, 2mol of polyethylene glycol and 0.05mol of p-toluenesulfonic acid into 2mol of toluene, heating to 130 ℃ for reflux, reacting for 20 hours, distilling under reduced pressure, adding 3mol of absolute ethyl alcohol and 2.4mol of sulfoxide chloride, refluxing at 70 ℃, reacting for 10 hours, dehydrating, adding 2mol of aminopropyl triethoxysilane, refluxing at 90 ℃ for reacting for 6 hours, cooling, washing and drying to obtain a modified crosslinking agent;
Step 2, mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol, 2g of modified cross-linking agent and 0.2g of antioxidant 1010, heating and stirring at 110 ℃, uniformly mixing, vacuum drying and dehydrating for 2.5 hours, cooling to 65 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 20 minutes, discharging, sealing and packaging, and curing in a 70 ℃ oven for 6 hours to obtain the polyurethane hot melt adhesive;
The method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and a bath ratio of 25:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, and the temperature of each shaping chamber is respectively one chamber of 100 ℃, two chambers of 110 ℃, three chambers of 120 ℃, four chambers of 140 ℃, five chambers of 145 ℃, six chambers of 150 ℃, seven chambers of 155 ℃, eight chambers of 160 ℃ and nine chambers of 170 ℃, and the speed of 30m/min.
Example 2
Adding 1mol of citric acid, 2mol of polyethylene glycol and 0.05mol of p-toluenesulfonic acid into 2mol of toluene, heating to 135 ℃ for reflux, reacting for 22 hours, distilling under reduced pressure, adding 3mol of absolute ethyl alcohol and 2.4mol of sulfoxide chloride, refluxing at 75 ℃, reacting for 10 hours, dehydrating, adding 2mol of aminopropyl triethoxysilane, refluxing at 95 ℃, reacting for 6 hours, cooling, washing and drying to obtain a modified crosslinking agent;
Step 2, mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol, 2g of modified cross-linking agent and 0.2g of antioxidant 1010, heating and stirring at 115 ℃ to uniformly mix, vacuum drying and dehydrating for 2.5 hours, cooling to 65 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 20 minutes, discharging, sealing and packaging, and curing in a 70 ℃ oven for 7 hours to obtain the polyurethane hot melt adhesive;
The method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and a bath ratio of 28:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, the temperature of each shaping chamber is respectively one chamber 100 ℃, two chambers 110 ℃, three chambers 120 ℃, four chambers 140 ℃, five chambers 145 ℃, six chambers 150 ℃, seven chambers 155 ℃, eight chambers 160 ℃ and nine chambers 170 ℃, and the speed of the base cloth is 30m/min.
Example 3
Adding 1mol of citric acid, 2mol of polyethylene glycol and 0.05mol of p-toluenesulfonic acid into 2mol of toluene, heating to 140 ℃ for reflux, reacting for 26 hours, distilling under reduced pressure, adding 3mol of absolute ethyl alcohol and 2.4mol of sulfoxide chloride, refluxing at 80 ℃, reacting for 15 hours, dehydrating, adding 2mol of aminopropyl triethoxysilane, refluxing at 100 ℃, reacting for 6 hours, cooling, washing and drying to obtain a modified crosslinking agent;
Step 2, mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol, 2g of modified cross-linking agent and 0.2g of antioxidant 1010, heating and stirring at 130 ℃, uniformly mixing, vacuum drying and dehydrating for 2.5 hours, cooling to 75 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 30 minutes, discharging, sealing and packaging, and curing in a 70 ℃ oven for 8 hours to obtain the polyurethane hot melt adhesive;
The method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and a bath ratio of 26:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, the temperature of each shaping chamber is respectively one chamber 100 ℃, two chambers 110 ℃, three chambers 120 ℃, four chambers 140 ℃, five chambers 145 ℃, six chambers 150 ℃, seven chambers 155 ℃, eight chambers 160 ℃ and nine chambers 170 ℃, and the speed of the base cloth is 30m/min.
Example 4
Adding 1mol of citric acid, 2mol of polyethylene glycol and 0.05mol of p-toluenesulfonic acid into 2mol of toluene, heating to 135 ℃ for reflux, reacting for 26 hours, distilling under reduced pressure, adding 3mol of absolute ethyl alcohol and 2.4mol of sulfoxide chloride, refluxing at 80 ℃, reacting for 12 hours, dehydrating, adding 2mol of aminopropyl triethoxysilane, refluxing at 95 ℃ for reacting for 8 hours, cooling, washing and drying to obtain a modified crosslinking agent;
Step 2, mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol, 2g of modified cross-linking agent and 0.2g of antioxidant 1010, heating and stirring at 115 ℃ to uniformly mix, vacuum drying and dehydrating for 2.5 hours, cooling to 70 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 22 minutes, discharging, sealing and packaging, and curing for 6.5 hours in a 75 ℃ oven to obtain the polyurethane hot melt adhesive;
The method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and bath ratio of 27:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, wherein the temperature of each shaping chamber is respectively one chamber 100 ℃, two chambers 110 ℃, three chambers 120 ℃, four chambers 140 ℃, five chambers 145 ℃, six chambers 150 ℃, seven chambers 155 ℃, eight chambers 160 ℃ and nine chambers 170 ℃, and the speed is 30m/min.
Example 5
Adding 1mol of citric acid, 2mol of polyethylene glycol and 0.05mol of p-toluenesulfonic acid into 2mol of toluene, heating to 130 ℃ for reflux, reacting for 21h, distilling under reduced pressure, adding 3mol of absolute ethyl alcohol and 2.4mol of sulfoxide chloride, refluxing at 75 ℃ for reacting for 11h, dehydrating, adding 2mol of aminopropyl triethoxysilane, refluxing at 95 ℃ for reacting for 7h, cooling, washing and drying to obtain a modified crosslinking agent;
Step 2, mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol, 2g of modified cross-linking agent and 0.2g of antioxidant 1010, heating and stirring at 135 ℃ to uniformly mix, vacuum drying and dehydrating for 2.5 hours, cooling to 75 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 22 minutes, discharging, sealing and packaging, and curing in an 85 ℃ oven for 7.5 hours to obtain the polyurethane hot melt adhesive;
The method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and a bath ratio of 29:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, the temperature of each shaping chamber is respectively one chamber 100 ℃, two chambers 110 ℃, three chambers 120 ℃, four chambers 140 ℃, five chambers 145 ℃, six chambers 150 ℃, seven chambers 155 ℃, eight chambers 160 ℃ and nine chambers 170 ℃, and the speed of the base cloth is 30m/min.
Example 6
Adding 1mol of citric acid, 2mol of polyethylene glycol and 0.05mol of p-toluenesulfonic acid into 2mol of toluene, heating to 140 ℃ for reflux, reacting for 26 hours, distilling under reduced pressure, adding 3mol of absolute ethyl alcohol and 2.4mol of sulfoxide chloride, refluxing at 80 ℃, reacting for 15 hours, dehydrating, adding 2mol of aminopropyl triethoxysilane, refluxing at 100 ℃, reacting for 8 hours, cooling, washing and drying to obtain a modified crosslinking agent;
step 2, mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol, 2g of modified cross-linking agent and 0.2g of antioxidant 1010, heating and stirring at 140 ℃, uniformly mixing, vacuum drying and dehydrating for 2.5 hours, cooling to 75 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 30 minutes, discharging, sealing and packaging, and curing in a 90 ℃ oven for 8 hours to obtain the polyurethane hot melt adhesive;
The method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and a bath ratio of 30:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, the temperature of each shaping chamber is respectively one chamber 100 ℃, two chambers 110 ℃, three chambers 120 ℃, four chambers 140 ℃, five chambers 145 ℃, six chambers 150 ℃, seven chambers 155 ℃, eight chambers 160 ℃ and nine chambers 170 ℃, and the speed of the base cloth is 30m/min.
Comparative example 1
Polyurethane hot melt adhesives were prepared without adding a modifying cross-linking agent, and the remaining parameters were the same as in example 1.
Mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol and 0.2g of antioxidant 1010, heating and stirring at 110 ℃, uniformly mixing, vacuum drying and dehydrating for 2.5 hours, cooling to 65 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 20 minutes, discharging, sealing and packaging, and putting into a 70 ℃ oven for curing for 6 hours to obtain the polyurethane hot melt adhesive;
the method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and a bath ratio of 25:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, the temperature of each shaping chamber is respectively one chamber 100 ℃, two chambers 110 ℃, three chambers 120 ℃, four chambers 140 ℃, five chambers 145 ℃, six chambers 150 ℃, seven chambers 155 ℃, eight chambers 160 ℃ and nine chambers 170 ℃, and the speed of the base cloth is 30m/min.
Comparative example 2
The modified polyurethane hot melt adhesive is prepared by directly adding aminopropyl triethoxy silane, and the rest parameters are the same as those of the example 2.
Step 1, mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol, 2g of aminopropyl triethoxysilane and 0.2g of antioxidant 1010, heating and stirring at 115 ℃ to uniformly mix, vacuum drying and dehydrating for 2.5 hours, cooling to 65 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 20 minutes, discharging, sealing and packaging, and placing into a 70 ℃ oven for curing for 7 hours to obtain the polyurethane hot melt adhesive;
The method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and a bath ratio of 28:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, the temperature of each shaping chamber is respectively one chamber 100 ℃, two chambers 110 ℃, three chambers 120 ℃, four chambers 140 ℃, five chambers 145 ℃, six chambers 150 ℃, seven chambers 155 ℃, eight chambers 160 ℃ and nine chambers 170 ℃, and the speed of the base cloth is 30m/min.
Comparative example 3
The order of preparation of the modified cross-linking agent by polyethylene glycol and aminopropyl triethoxysilane was changed, and the remaining parameters were the same as in example 3.
Step 1, refluxing 1mol of citric acid, 3mol of absolute ethyl alcohol and 2.4mol of sulfoxide chloride at 80 ℃, reacting for 15 hours, adding 2mol of aminopropyl triethoxysilane after dehydration, refluxing at 100 ℃, reacting for 6 hours, adding 2mol of polyethylene glycol and 0.05mol of p-toluenesulfonic acid into 2mol of toluene, heating to 140 ℃ for refluxing, reacting for 26 hours, distilling under reduced pressure, cooling, washing and drying to obtain a modified cross-linking agent;
Step 2, mixing 85g of polyethylene glycol, 4g of 1, 4-butanediol, 2g of modified cross-linking agent and 0.2g of antioxidant 1010, heating and stirring at 130 ℃, uniformly mixing, vacuum drying and dehydrating for 2.5 hours, cooling to 75 ℃, adding 35g of isophorone diisocyanate and 0.1g of stannous octoate, reacting for 30 minutes, discharging, sealing and packaging, and curing in a 70 ℃ oven for 8 hours to obtain the polyurethane hot melt adhesive;
The method comprises the steps of taking base cloth, refining for 30min under the conditions of 100 ℃ and a bath ratio of 26:1, taking out the base cloth after washing for 15min, melting polyurethane hot melt adhesive at 190 ℃ and coating the molten polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, wherein the thickness of the coating is 0.01mm, and obtaining the breathable adhesive lining cloth for the coated fabric, wherein the pre-shaping treatment method comprises the steps that the base cloth sequentially passes through 9 shaping chambers, the temperature of each shaping chamber is respectively one chamber 100 ℃, two chambers 110 ℃, three chambers 120 ℃, four chambers 140 ℃, five chambers 145 ℃, six chambers 150 ℃, seven chambers 155 ℃, eight chambers 160 ℃ and nine chambers 170 ℃, and the speed of the base cloth is 30m/min.
Experiment:
the test method of the peel strength of the adhesive lining cloth refers to FZ/T01085-2018, and the specific operation flow is as follows:
Cutting the adhesive lining cloth in examples 1-6 and comparative examples 1-3, wherein the size of the sample is 200mm multiplied by 70mm, cutting terylene fabric (from a special fabrics strength supplier, product number HY 2189) with the size of 200mm multiplied by 80mm as a standard fabric, placing thin tissue paper between the adhesive lining cloth sample and the standard fabric, pressing and cooling to obtain a combined sample, and preparing 5 samples for each group of experiments, wherein the effective adhesive area of the combined sample is 50mm multiplied by 110mm, and taking the average value as a final test result;
The initial peeling strength is obtained by using a tensile testing machine to stretch at a constant speed of 100mm/min, peeling, stopping stretching and reading after the combined fabric with the actual bonding width of 50mm is peeled for 100mm displacement, testing 5 times in each group of experiments, and taking the average value as the initial peeling strength;
the water treatment peeling strength is that the combined sample is soaked in clear water at 25 ℃ for 24 hours, taken out and dried to constant weight, and the peeling strength is tested by referring to the method and is recorded as the water treatment peeling strength;
heat treatment peel strength the combined samples were heat treated under vacuum at 200 ℃ for 12 hours, and after cooling, the peel strength was tested with reference to the above method and noted as heat treatment peel strength.
| Project | Initial peel strength/N | Peel strength/N of water treatment | Heat treatment peel strength/N |
| Example 1 | 24.9 | 23.6 | 20.6 |
| Example 2 | 25.1 | 24.8 | 21.2 |
| Example 3 | 25.3 | 24.2 | 21.7 |
| Example 4 | 25.7 | 24.4 | 21.8 |
| Example 5 | 25.8 | 24.7 | 22.4 |
| Example 6 | 25.4 | 24.1 | 22.0 |
| Comparative example 1 | 22.7 | 19.4 | 17.6 |
| Comparative example 2 | 20.6 | / | / |
| Comparative example 3 | 18.4 | 16.7 | 12.3 |
The data of examples 1-6 show that the adhesive lining cloth prepared by the invention has good water resistance and heat resistance, the peel strength is not greatly changed after water treatment and heat treatment, and meanwhile, the adhesive lining cloth prepared by the invention has excellent air permeability and comfortable wearing feeling. The data of example 1 and comparative example 1 show that the adhesive interlining prepared by adding the modified crosslinking agent has better performance, because the modified crosslinking agent contains a plurality of hydroxyl groups and can react with isocyanate to obtain the crosslinked polyurethane hot melt adhesive, thereby improving the water resistance of the adhesive interlining, and in addition, the modified crosslinking agent contains a silicon-oxygen bond, so that the polyurethane hot melt adhesive has better thermal stability. In comparative example 2, the aminopropyl triethoxysilane was directly added, and the amino group was able to react with the isocyanate group to form a urea group, so that the dispersibility in the polyurethane hot melt adhesive was good, but the initial peel strength was lower than that of example 2, indicating that the invention is superior to the conventional technical means. In comparative example 3, after the reaction sequence is changed, excessive ethanol makes citric acid fully react, and can not react with polyethylene glycol any more, so that the obtained product can not generate a crosslinking effect with polyurethane, the compatibility with polyurethane is greatly reduced, and the initial peel strength, the water resistance and the heat resistance of the finally prepared adhesive lining cloth are far lower than those of example 3.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present invention, and the present invention is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A preparation method of breathable adhesive lining cloth for a coated fabric is characterized by comprising the following steps:
Adding citric acid, polyethylene glycol and p-toluenesulfonic acid into toluene, reacting, distilling under reduced pressure, adding absolute ethyl alcohol and thionyl chloride, reacting, dehydrating, adding aminopropyl triethoxysilane, reacting, cooling, washing and drying to obtain a modified cross-linking agent, wherein the dosages of the components are 1 part of citric acid, 1-2 parts of polyethylene glycol, 0.005-0.05 part of p-toluenesulfonic acid, 2 parts of toluene, 3-3.5 parts of absolute ethyl alcohol, 2.4-3 parts of thionyl chloride and 2-2.2 parts of aminopropyl triethoxysilane in parts by mol;
Step 2, mixing polyethylene glycol, 1, 4-butanediol, a modified cross-linking agent and an antioxidant, heating, stirring, uniformly mixing, vacuum drying, dehydrating, cooling, adding isophorone diisocyanate and stannous octoate for reaction, discharging, sealing and packaging a discharged product, and curing in an oven to obtain the polyurethane hot melt adhesive;
And step 3, taking the base cloth, refining, washing with clear water, coating polyurethane hot melt adhesive on the surface of the base cloth after pre-shaping treatment, and attaching the polyurethane hot melt adhesive on the base cloth after melting to obtain the breathable adhesive lining cloth for the coated fabric.
2. The preparation method of the breathable adhesive lining cloth for the coated fabric is characterized in that in the step 1, citric acid, polyethylene glycol and p-toluenesulfonic acid are added into toluene, the temperature is raised to 130-140 ℃ for reflux, the reaction is carried out for 20-26 hours, reduced pressure distillation is carried out, absolute ethyl alcohol and thionyl chloride are added, the reflux is carried out at 70-80 ℃, the reaction is carried out for 10-15 hours, aminopropyl triethoxysilane is added after dehydration, the reflux is carried out at 90-100 ℃, the reaction is carried out for 6-8 hours, and the modified crosslinking agent is obtained after cooling, washing and drying.
3. The preparation method of the breathable adhesive lining cloth for the coated fabric, which is characterized in that in the step 2, the preparation method of the polyurethane hot melt adhesive is characterized in that polyethylene glycol, 1, 4-butanediol, a modified cross-linking agent and an antioxidant are mixed, heated and stirred uniformly at 110-140 ℃, dried in vacuum and dehydrated for 2-3 hours, cooled to 65-75 ℃, added with isophorone diisocyanate and stannous octoate, and discharged after reacting for 20-30 minutes.
4. The method for preparing breathable adhesive lining cloth for coated fabric according to claim 1, wherein in the step 2, the curing temperature is 70-90 ℃ and the curing time is 6-8 hours.
5. The method for preparing breathable adhesive lining cloth for coating fabric according to claim 1, wherein in the step 2, the weight of each component is 70-85 parts of polyethylene glycol, 2-4 parts of 1, 4-butanediol, 1-2 parts of modified cross-linking agent, 0.1-0.2 part of antioxidant, 25-35 parts of isophorone diisocyanate and 0.05-0.1 part of stannous octoate.
6. The method for preparing the breathable adhesive lining cloth for the coated fabric, which is disclosed in claim 1, is characterized in that in the step 3, the scouring temperature is 80-100 ℃, the bath ratio is 25-30:1, and the time is 30-60 min.
7. The method for preparing breathable adhesive lining cloth for coated fabric according to claim 1, wherein in the step 3, the melting temperature of the polyurethane hot melt adhesive is 150-190 ℃.
8. The method for preparing the breathable adhesive lining cloth for the coated fabric, which is disclosed in claim 1, is characterized in that in the step 3, in the pre-shaping treatment, the base cloth sequentially passes through 9 shaping chambers, wherein the temperature of each shaping chamber is respectively 100-120 ℃ in one chamber, 100-120 ℃ in two chambers, 120-150 ℃ in three chambers, 120-150 ℃ in four chambers, 140-170 ℃ in five chambers, 140-170 ℃ in six chambers, 140-170 ℃ in seven chambers, 140-170 ℃ in eight chambers and 140-170 ℃ in nine chambers, the vehicle speed is 30-40 m/min, and the width of a door is 120-125 cm.
9. The adhesive backing according to any one of claims 1 to 8, which is produced by a production method of a breathable adhesive backing for coated fabric.
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| CN108251039A (en) * | 2017-12-20 | 2018-07-06 | 上海康达化工新材料股份有限公司 | A kind of high moisture-inhibiting functional fabric reaction type polyurethane hot-melt adhesive and preparation method thereof |
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| CN108251039A (en) * | 2017-12-20 | 2018-07-06 | 上海康达化工新材料股份有限公司 | A kind of high moisture-inhibiting functional fabric reaction type polyurethane hot-melt adhesive and preparation method thereof |
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