CN113667441A - Reactive polyurethane hot melt adhesive for high-moisture-permeability functional fabric and preparation method thereof - Google Patents
Reactive polyurethane hot melt adhesive for high-moisture-permeability functional fabric and preparation method thereof Download PDFInfo
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- CN113667441A CN113667441A CN202110983690.7A CN202110983690A CN113667441A CN 113667441 A CN113667441 A CN 113667441A CN 202110983690 A CN202110983690 A CN 202110983690A CN 113667441 A CN113667441 A CN 113667441A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
- C09J175/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/4009—Two or more macromolecular compounds not provided for in one single group of groups C08G18/42 - C08G18/64
- C08G18/4081—Mixtures of compounds of group C08G18/64 with other macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4804—Two or more polyethers of different physical or chemical nature
- C08G18/4808—Mixtures of two or more polyetherdiols
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4825—Polyethers containing two hydroxy groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4833—Polyethers containing oxyethylene units
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/64—Macromolecular compounds not provided for by groups C08G18/42 - C08G18/63
- C08G18/6484—Polysaccharides and derivatives thereof
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric and a preparation method thereof, wherein the reactive polyurethane hot melt adhesive comprises the following components in parts by weight: 50-80 parts of polyol, 30-40 parts of sodium carboxymethylcellulose, 10-20 parts of thermoplastic polyurethane elastomer, 10-20 parts of silane coupling agent, 1-5 parts of antioxidant and 1-5 parts of catalyst; the silane coupling agent is one of gamma-methyl oxypropyl trimethoxysilane, gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane and gamma-aminopropyl triethoxysilane. The polyurethane hot melt adhesive prepared by the invention belongs to a solvent-free environment-friendly adhesive, is applied to the compounding of various TPU films and various base fabrics, and has good initial strength, good final strength, good water washing resistance, solvent resistance and high moisture permeability.
Description
Technical Field
The invention belongs to the technical field of hot melt adhesives, and particularly relates to a reactive polyurethane hot melt adhesive for a high-moisture-permeability functional fabric and a preparation method thereof.
Background
With the improvement of living standard of people and the influence of global warming, the demand of people on the waterproof moisture-permeable fabric is rapidly increased, so that the development of a novel composite fabric product with excellent waterproof moisture-permeable performance has wide market prospect and important scientific research value. The waterproof moisture-permeable fabric generally refers to a material which can prevent liquid such as water drops and the like from permeating and can ensure that water vapor freely permeates. Polyurethane film (TPU) compounded various fabrics can have both waterproofness and moisture permeability, and due to excellent wear resistance, flexibility, adhesiveness and adjustability in performance, attention and research are widely paid to in the field of waterproof moisture permeable fabrics in recent years.
However, the composite adhesive used in the field of functional fabric compounding at present has unsatisfactory places such as poor bonding strength, low moisture permeability, hard hand feeling, large environmental pollution and the like. A
Disclosure of Invention
The invention mainly solves the technical problem of providing a reactive polyurethane hot melt adhesive for high moisture permeable functional fabric and a preparation method thereof, the prepared polyurethane hot melt adhesive belongs to a solvent-free environment-friendly adhesive, is applied to the compounding of various TPU films and various base fabrics, and has good initial strength, good final strength, good water washing resistance, solvent resistance and high moisture permeability.
In order to solve the technical problems, the invention adopts a technical scheme that: a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric comprises the following components in parts by weight: 50-80 parts of polyol, 30-40 parts of sodium carboxymethylcellulose, 10-20 parts of thermoplastic polyurethane elastomer, 10-20 parts of silane coupling agent, 1-5 parts of antioxidant and 1-5 parts of catalyst;
the silane coupling agent is one of gamma-methyl oxypropyl trimethoxysilane, gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane and gamma-aminopropyl triethoxysilane.
Further, the polyol is one or a combination of several of polyoxyethylene glycol and polyoxypropylene glycol.
Further, the thermoplastic polyurethane elastomer is a polyurethane elastomer obtained by polymerizing adipic acid-1, 6-hexanediol diol, butanediol adipate diol and HDI.
Further, the antioxidant is selected from the group consisting of tetrakis [ methyl- β - (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester, 2, 6-di-tert-butyl-p-cresol, or a combination thereof.
Further, the catalyst is one or two of a bismuth-based catalyst and a zinc-based catalyst.
A preparation method of a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric comprises the following steps:
s1, stirring and vacuumizing the polyol and the sodium carboxymethyl cellulose for 3-4 hours at the temperature of 80-100 ℃ according to parts by weight;
s2, continuously adding the thermoplastic polyurethane elastomer and the silane coupling agent, stirring and vacuumizing for 40-50 minutes at the temperature of 70-80 ℃;
s3, continuously adding an antioxidant, and carrying out vacuum pumping reaction for 3-4 hours at the temperature of 60-70 ℃; and then adding a catalyst for vacuum defoaming to prepare the polyurethane hot melt adhesive.
The invention has the beneficial effects that:
the polyurethane hot melt adhesive has higher cohesiveness and moisture permeability under the action of polyol, sodium carboxymethylcellulose, a thermoplastic polyurethane elastomer, a silane coupling agent, an antioxidant and a catalyst, and is free of solvent volatile matters, environment-friendly and pollution-free.
Detailed Description
The following detailed description of the preferred embodiments of the present invention is provided to enable those skilled in the art to more readily understand the advantages and features of the present invention, and to clearly and unequivocally define the scope of the present invention.
Example 1: a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric comprises the following components in parts by weight: 50 parts of polyol, 30 parts of sodium carboxymethylcellulose, 10 parts of thermoplastic polyurethane elastomer, 10 parts of silane coupling agent, 1 part of antioxidant and 1 part of catalyst;
the silane coupling agent is gamma-methyl oxy propyl trimethoxy silane.
The polyol is a polyoxyethylene glycol.
The thermoplastic polyurethane elastomer is a polyurethane elastomer formed by polymerizing adipic acid-1, 6-hexanediol glycol, butanediol adipate glycol and HDI.
The antioxidant is selected from tetra [ methyl-beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester (antioxidant 1010).
The catalyst is a bismuth-based catalyst.
A preparation method of a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric comprises the following steps:
s1, stirring and vacuumizing the polyol and the sodium carboxymethyl cellulose at the temperature of 80 ℃ for 3 hours according to the parts by weight;
s2, continuously adding the thermoplastic polyurethane elastomer and the silane coupling agent, stirring and vacuumizing for 40 minutes at the temperature of 70 ℃;
s3, continuously adding an antioxidant, and vacuumizing at the temperature of 60 ℃ for reaction for 3 hours; and then adding a catalyst for vacuum defoaming to prepare the polyurethane hot melt adhesive.
Example 2: a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric comprises the following components in parts by weight: 70 parts of polyol, 35 parts of sodium carboxymethylcellulose, 15 parts of thermoplastic polyurethane elastomer, 15 parts of silane coupling agent, 3 parts of antioxidant and 3 parts of catalyst;
the silane coupling agent is gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane.
The polyol is a polyoxypropylene diol.
The thermoplastic polyurethane elastomer is a polyurethane elastomer formed by polymerizing adipic acid-1, 6-hexanediol glycol, butanediol adipate glycol and HDI.
The antioxidant is selected from 2, 6-di-tert-butyl-p-cresol (antioxidant 264).
The catalyst is a zinc-based catalyst.
A preparation method of a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric comprises the following steps:
s1, stirring and vacuumizing the polyol and the sodium carboxymethyl cellulose at the temperature of 90 ℃ for 3.5 hours according to parts by weight;
s2, continuously adding the thermoplastic polyurethane elastomer and the silane coupling agent, stirring and vacuumizing for 45 minutes at the temperature of 75 ℃;
s3, continuously adding the antioxidant, and vacuumizing at the temperature of 65 ℃ for reaction for 3.5 hours; and then adding a catalyst for vacuum defoaming to prepare the polyurethane hot melt adhesive.
Example 3: a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric comprises the following components in parts by weight: 80 parts of polyol, 40 parts of sodium carboxymethylcellulose, 20 parts of thermoplastic polyurethane elastomer, 20 parts of silane coupling agent, 5 parts of antioxidant and 5 parts of catalyst;
the silane coupling agent is gamma-aminopropyl triethoxysilane.
The polyol is a combination of polyoxyethylene glycol and polyoxypropylene glycol, and the addition ratio of the polyoxyethylene glycol to the polyoxypropylene glycol is 1:4 in parts by weight.
The thermoplastic polyurethane elastomer is a polyurethane elastomer formed by polymerizing adipic acid-1, 6-hexanediol glycol, butanediol adipate glycol and HDI.
The antioxidant is selected from the combination of tetra [ methyl-beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester (antioxidant 1010) and 2, 6-di-tert-butyl-p-cresol (antioxidant 264), and the addition ratio of the two is 3:2 in parts by weight.
The catalyst is a bismuth-based catalyst and a zinc-based catalyst, and the addition ratio of the bismuth-based catalyst to the zinc-based catalyst is 1:1 in parts by weight.
A preparation method of a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric comprises the following steps:
s1, stirring and vacuumizing the polyol and the sodium carboxymethyl cellulose for 4 hours at the temperature of 100 ℃ according to the parts by weight;
s2, continuously adding the thermoplastic polyurethane elastomer and the silane coupling agent, stirring and vacuumizing for 50 minutes at the temperature of 80 ℃;
s3, continuously adding an antioxidant, and vacuumizing at the temperature of 70 ℃ for reaction for 4 hours; and then adding a catalyst for vacuum defoaming to prepare the polyurethane hot melt adhesive.
The polyurethane hotmelts from examples 1 to 3 were subjected to NCO% determination: the product was reacted with an excess of standard di-n-butylamine solution in butanone and then titrated with HCl solution to give a NCO% content of 2-3%.
The polyurethane hot melt adhesives of examples 1 to 3 were subjected to moisture permeability test: adopting a method of pouring cups in GB/T12704.2-2009 to prepare the stripThe temperature is 38 +/-2 ℃ and the relative humidity is 50 +/-2 percent, and the moisture permeability is 5613-7280g/m2.24h。
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification, or any other related technical fields directly or indirectly, are included in the scope of the present invention.
Claims (6)
1. The utility model provides a high moisture permeable functional fabric is with reaction type polyurethane hot melt adhesive which characterized in that: the composition comprises the following components in parts by weight: 50-80 parts of polyol, 30-40 parts of sodium carboxymethylcellulose, 10-20 parts of thermoplastic polyurethane elastomer, 10-20 parts of silane coupling agent, 1-5 parts of antioxidant and 1-5 parts of catalyst;
the silane coupling agent is one of gamma-methyl oxypropyl trimethoxysilane, gamma- (2, 3-epoxypropoxy) propyl trimethoxysilane and gamma-aminopropyl triethoxysilane.
2. The reactive polyurethane hot melt adhesive for the high moisture permeable functional fabric according to claim 1, which is characterized in that: the polyol is one or a combination of more of polyoxyethylene glycol and polyoxypropylene glycol.
3. The reactive polyurethane hot melt adhesive for the high moisture permeable functional fabric according to claim 1, which is characterized in that: the thermoplastic polyurethane elastomer is a polyurethane elastomer formed by polymerizing adipic acid-1, 6-hexanediol glycol, butanediol adipate glycol and HDI.
4. The reactive polyurethane hot melt adhesive for the high moisture permeable functional fabric according to claim 1, which is characterized in that: the antioxidant is selected from tetra [ methyl-beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ] pentaerythritol ester, 2, 6-di-tert-butyl-p-cresol or a combination thereof.
5. The reactive polyurethane hot melt adhesive for the high moisture permeable functional fabric according to claim 1, which is characterized in that: the catalyst is one or two of a bismuth-based catalyst and a zinc-based catalyst.
6. A preparation method of a reactive polyurethane hot melt adhesive for a high moisture permeable functional fabric is characterized by comprising the following steps: the method comprises the following steps:
s1, stirring and vacuumizing the polyol and the sodium carboxymethyl cellulose for 3-4 hours at the temperature of 80-100 ℃ according to parts by weight;
s2, continuously adding the thermoplastic polyurethane elastomer and the silane coupling agent, stirring and vacuumizing for 40-50 minutes at the temperature of 70-80 ℃;
s3, continuously adding an antioxidant, and carrying out vacuum pumping reaction for 3-4 hours at the temperature of 60-70 ℃; and then adding a catalyst for vacuum defoaming to prepare the polyurethane hot melt adhesive.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110983690.7A CN113667441A (en) | 2021-08-25 | 2021-08-25 | Reactive polyurethane hot melt adhesive for high-moisture-permeability functional fabric and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110983690.7A CN113667441A (en) | 2021-08-25 | 2021-08-25 | Reactive polyurethane hot melt adhesive for high-moisture-permeability functional fabric and preparation method thereof |
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| CN113667441A true CN113667441A (en) | 2021-11-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114343292A (en) * | 2022-01-28 | 2022-04-15 | 安踏（中国）有限公司 | Preparation method of elastic vamp, elastic vamp and steel frame snowmobile sports shoe |
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2021
- 2021-08-25 CN CN202110983690.7A patent/CN113667441A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114343292A (en) * | 2022-01-28 | 2022-04-15 | 安踏（中国）有限公司 | Preparation method of elastic vamp, elastic vamp and steel frame snowmobile sports shoe |
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