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High-water-pressure washing-resistant polyurethane primer resin for textile coating and preparation method of high-water-pressure washing-resistant polyurethane primer resin

A textile coating, water-resistant technology, applied in the direction of polyurea/polyurethane coatings, coatings, etc., can solve the problems of low water pressure, poor water resistance, environmental pollution and so on

Inactive Publication Date: 2021-05-04
禾瑞(漳州)助剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the high water pressure-resistant coating adhesives / emulsions for textiles on the market are solvent-based coating adhesives. The performance of solvent-based coatings is good, but harmful substances such as toluene and DMF will be discharged during use, causing pollution to the environment and cause harm to the human body
Water-based polyurethane emulsion used for water pressure resistance of textiles has the advantages of low temperature resistance, good solvent resistance, good elasticity and flexibility, but poor water resistance, poor washing fastness, low mechanical strength, and poor abrasion resistance
The water pressure effect obtained by existing polyurethane products for textile coatings on some high-denier fabrics (such as 600D Oxford cloth, etc.) is not ideal, especially after washing, the water pressure is often very low, which cannot meet customer requirements

Method used

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  • High-water-pressure washing-resistant polyurethane primer resin for textile coating and preparation method of high-water-pressure washing-resistant polyurethane primer resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Polyurethane primer resin for high water pressure washable textile coating, the polyurethane primer resin for high water pressure washable textile coating consists of the following components by weight percentage:

[0034] JPP-100: 0.01%, adipic acid and neopentyl glycol copolymerized diol: 44%, polycarbonate diol: 5%, 1,4-butanediol: 1.5%, trimethylolpropane: 0.05%, toluene diisocyanate: 2%, 4,4-diphenylmethane diisocyanate: 2%, ethylene glycol: 0.05%, malic acid: 0.05%, dimethylformamide: 20%, toluene: 25.34% .

[0035] The preparation method of the polyurethane primer resin for the textile coating of the above-mentioned high water pressure washable comprises the following steps:

[0036] The first step: 45% dimethylformamide, JPP-100, adipic acid and neopentyl glycol copolymerized diol, polycarbonate diol, 1,4-butanediol, trimethylol Put all the propane into the reactor and stir for 15 minutes and keep it warm at 65°C;

[0037] The second step: add all the toluene...

Embodiment 2

[0043] Polyurethane primer resin for high water pressure washable textile coating, the polyurethane primer resin for high water pressure washable textile coating consists of the following components by weight percentage:

[0044] JPP-100: 0.3%, adipic acid and neopentyl glycol copolymerized diol: 24%, polycarbonate diol: 10%, 1,4-butanediol: 3%, trimethylolpropane: 1%, toluene diisocyanate: 8%, 4,4-diphenylmethane diisocyanate: 8%, ethylene glycol: 0.5%, malic acid: 0.5%, dimethylformamide: 24.7%, toluene: 20% .

[0045]The preparation method of the polyurethane primer resin for the textile coating of the above-mentioned high water pressure washable comprises the following steps:

[0046] Step 1: Copolymerize 55% dimethylformamide, JPP-100, adipic acid and neopentyl glycol, polycarbonate diol, 1,4-butanediol, trimethylol Put all the propane into the reactor and stir for 25 minutes and keep it warm at 75°C;

[0047] The second step: add all the toluene diisocyanate and keep ...

Embodiment 3

[0053] Polyurethane primer resin for high water pressure washable textile coating, the polyurethane primer resin for high water pressure washable textile coating consists of the following components by weight percentage:

[0054] JPP-100: 0.01%, adipic acid and neopentyl glycol copolymerized diol: 30.19%, polycarbonate diol: 7.5%, 1,4-butanediol: 2.4%, trimethylolpropane: 0.1%, toluene diisocyanate: 4.9%, 4,4-diphenylmethane diisocyanate: 4.7%, ethylene glycol: 0.1%, malic acid: 0.1%, dimethylformamide: 25%, toluene: 25% .

[0055] The preparation method of the polyurethane primer resin for the textile coating of the above-mentioned high water pressure washable comprises the following steps:

[0056] The first step: 50% dimethylformamide, JPP-100, adipic acid and neopentyl glycol copolymerized diol, polycarbonate diol, 1,4-butanediol, trimethylol Put all the propane into the reactor and stir for 20 minutes and keep it warm at 70°C;

[0057] The second step: add all the tolu...

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Abstract

The invention provides high-water-pressure washable polyurethane primer resin for a textile coating and a preparation method of the primer resin, and the primer resin is prepared from the following components: adipic acid and neopentyl glycol copolymerized dihydric alcohol, polycarbonate dihydric alcohol, 1, 4-butanediol, trimethylolpropane, toluene diisocyanate, 4, 4-diphenylmethane diisocyanate and ethylene glycol. The side chain methyl of the neopentyl glycol has good water repellency, so that the water pressure resistance of the product can be greatly improved, the hydrolysis resistance of the product is improved by combining the polycarbonate polyol, the water pressure before washing and the water pressure after washing of the product can be improved, and the product is also suitable for cloth with high denier (such as 600D oxford cloth and the like). The high-water-pressure washable polyurethane primer resin can be used for meeting the use requirements of the product under outdoor environment conditions, the adhesive force of the primer resin to the base material can be improved, the problem that the product prepared by coating the high-water-pressure washable polyurethane primer resin is easy to absorb water and swell is relieved, and the adhesive force of the polyester polyol is good, so that the water pressure after washing is greatly helped and improved.

Description

technical field [0001] The embodiments disclosed in the present invention generally relate to the field of chemical engineering, and more specifically, relate to a polyurethane primer resin for textile coatings with high water pressure and washing resistance and a preparation method thereof. Background technique [0002] Textile coating is the compounding of fabric and high molecular polymer. After the compounding, the performance of the textile will change obviously. It not only retains the original function of the fabric, but also increases the function of the covering layer. The fabric coating technology creates functional properties for the textile industry. Fabrics provide more possibilities, greatly broaden the use of textiles, and the application fields are becoming wider and wider. Fabric coating is the fastest-growing and most extensive textile finishing technology in recent years. The coated fabric has special properties such as waterproof, breathable, moisture-per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/32C08G18/42C08G18/44C09D175/06
CPCC08G18/6644C08G18/4238C08G18/44C08G18/4202C08G18/3206C09D175/06
Inventor 陈元昌舒科进
Owner 禾瑞(漳州)助剂有限公司
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