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Polyurethane resin for high light fabric coating, and manufacture method thereof

A technology of polyurethane resin and fabric, applied in the field of polyurethane resin and its manufacturing, can solve the problems of low gloss of fabric coating, high processing cost, hard hand feeling, etc., and achieve soft hand feeling, high gloss and smooth surface. Effect

Inactive Publication Date: 2012-05-23
JIANGSU DONGBANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a polyurethane resin for high-gloss fabric coating and its preparation method, so as to overcome the problems of low gloss, hard hand feeling and high processing cost when the existing products are applied to fabric coating

Method used

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  • Polyurethane resin for high light fabric coating, and manufacture method thereof
  • Polyurethane resin for high light fabric coating, and manufacture method thereof

Examples

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Effect test

Embodiment 1

[0029] A polyurethane resin for high-gloss fabric coating, containing 60 parts of polyethylene adipate propylene glycol ester (average molecular weight 2000), 8 parts of polytetramethylene glycol ether polyol, 40 parts of diphenylmethane diisocyanate, 5 parts of ethyl alcohol Glycol, 2 parts of hexanediol, 80 parts of dimethylformamide, 0.1 part of organic silver catalyst, 0.5 part of stopper methanol, 0.2 part of silicone softener, 0.3 part of defoamer, 0.1 part of antioxidant, 0.6 part Leveling agent, 1 part silicone feel agent.

[0030] The method for making above-mentioned high-gloss fabric coating polyurethane resin may further comprise the steps:

[0031] 1) 60 parts of polyethylene adipate propylene glycol, 10 parts of polytetramethylene glycol ether polyol, 5 parts of ethylene glycol, 2 parts of hexanediol, 0.1 part of antioxidant, 0.3 part of defoamer, 0.2 Add 30 parts of silicone softener to the reaction kettle, add 30 parts of dimethylformamide and stir well, then ...

Embodiment 2

[0042] A polyurethane resin for high-gloss fabric coating, containing 75 parts of polytrimethylene adipate (average molecular weight 2000), 15 parts of polytetrahydrofuran polyols, 45 parts of toluene diisocyanate, 10 parts of ethylene glycol, 0.1 part of organic silver catalyst, 0.3 part of stopper methanol, 0.5 part of silicone softener, 0.2 part of defoamer, 0.1 part of antioxidant, 0.5 part of leveling agent, 0.6 part of silicone hand feeling agent, with dimethylformamide and toluene as organic solvents.

[0043] The method for making above-mentioned high-gloss fabric coating polyurethane resin may further comprise the steps:

[0044]1) Put 75 parts of polytrimethylene adipate, 15 parts of polytetrahydrofuran polyol, 10 parts of ethylene glycol, 0.1 part of antioxidant, 0.2 part of defoamer, and 0.5 part of silicone softener into the reaction kettle After adding 30 parts of dimethylformamide and fully stirring, add 25 parts of toluene diisocyanate and react at 70-80°C for ...

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Abstract

The present invention relates to a polyurethane resin for a high light fabric coating, and a manufacture method thereof, wherein the average molecular weight of the polyurethane resin is 40000-100000 g / mol, the viscosity of the polyurethane resin is 50000-70000 cps / 25 DEG C, the solid content of the polyurethane resin is 50-65%, and the polyurethane resin is prepared by the reaction of a polyester polyol, a polyether polyol, a diol chain extender and diisocyanate. With the polyurethane resin coated on the fabric, the fabric surface has characteristics of smoothness, high gloss, and no pastiness at the high temperature.

Description

technical field [0001] The invention relates to a polyurethane resin and a manufacturing method thereof, in particular to a polyurethane resin for high-gloss fabric coating on the fabric surface and a manufacturing method thereof. Background technique [0002] The synthesis of polyurethane resin is usually formed by stepwise polymerization of dibasic or polyisocyanate and compounds containing two or more active hydrogen groups. In addition to generating urethane groups, groups such as urea and biuret are also generated. The chemical structure of polyurethane is characterized by repeating urethane segments in its macromolecular backbone. The main chain of polyurethane macromolecules is composed of soft segments whose glass transition temperature is lower than room temperature and rigid segment blocks whose glass transition temperature is higher than room temperature. Oligomer polyols constitute soft segments, diisocyanate and small molecule extension chain into hard segment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L75/06C08G18/66C08G18/48C08G18/42C08K5/54D06M15/572D06M15/568
Inventor 宗昀徐廷勋
Owner JIANGSU DONGBANG TECH