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Yellowing-resistant, wear-resistant and alcohol-resistant polyurethane resin, and preparation method and application thereof

A polyurethane resin and alcohol-resistant technology, which is applied in the field of materials, can solve the problems of high price and achieve the effects of moderate cost, wide application, excellent wear resistance and alcohol resistance

Inactive Publication Date: 2015-09-16
XUCHUAN CHEM SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the sofa leather market, leather resources are increasingly scarce and expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Non-yellowing, wear-resistant, alcohol-resistant polyurethane resin, made of the following components by weight: 15 parts of isocyanate compounds; 10 parts of polyester polyol compounds; 0.6 parts of low molecular weight compounds containing hydroxyl groups; diamines 2.5 parts of compound, 5 parts of auxiliary agent; 70 parts of organic solvent.

[0022] Wherein, the isocyanate compound is 4,4'-dicyclohexylmethane diisocyanate; the polyester polyol compound is polycarbonate diol with a molecular weight of 2000; the low molecular weight compound containing hydroxyl is ethylene diol alcohol; the diamine compound is 4,4'-dicyclohexylmethanediamine; the auxiliary agent modifies polydimethylsiloxane.

[0023] The preparation of described non-yellowing, wear-resistant, alcohol-resistant polyurethane resin comprises the following steps:

[0024] (1) Preparation of prepolymer: mix polyester polyol compound, isocyanate compound, and hydroxyl-containing low molecular weight comp...

Embodiment 2

[0027] Non-yellowing, wear-resistant, alcohol-resistant polyurethane resin, made of the following components by weight: 5 parts of isocyanate compounds; 5 parts of polyester polyol compounds; 1.0 parts of low molecular weight compounds containing hydroxyl groups; diamines 0.5 part of compound, 1 part of auxiliary agent; 50 parts of organic solvent.

[0028] Wherein, the isocyanate compound is 4,4'-dicyclohexylmethane diisocyanate; the polyester polyol compound is polycarbonate diol with a molecular weight of 400; the low molecular weight compound containing hydroxyl is ethylene diol alcohol; the diamine compound is 4,4'-dicyclohexylmethanediamine; the auxiliary agent is modified polydimethylsiloxane.

[0029] The preparation of described non-yellowing, wear-resistant, alcohol-resistant polyurethane resin comprises the following steps:

[0030] (1) Preparation of prepolymer: mix polyester polyol compound, isocyanate compound, and hydroxyl-containing low molecular weight compou...

Embodiment 3

[0033] Non-yellowing, wear-resistant, alcohol-resistant polyurethane resin, made of the following components by weight: 20 parts of isocyanate compounds; 15 parts of polyester polyol compounds; 0.2 parts of low molecular weight compounds containing hydroxyl groups; diamines 5 parts of compound, 10 parts of auxiliary agent; 90 parts of organic solvent.

[0034] Wherein, the isocyanate compound is 4,4'-dicyclohexylmethane diisocyanate; the polyester polyol compound is polycarbonate diol with a molecular weight of 5000; the low molecular weight compound containing hydroxyl is ethylene diol alcohol; the diamine compound is 4,4'-dicyclohexylmethanediamine; the auxiliary agent is modified polydimethylsiloxane.

[0035] The preparation of described non-yellowing, wear-resistant, alcohol-resistant polyurethane resin comprises the following steps:

[0036] (1) Preparation of prepolymer: mix polyester polyol compound, isocyanate compound, and hydroxyl-containing low molecular weight co...

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PUM

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Abstract

The invention provides yellowing-resistant, wear-resistant and alcohol-resistant polyurethane resin which is composed of the components of, by weight, 5-20 parts of an isocyanate-type compound, 5-15 parts of a polyester-type polyol compound, 0.2-1.0 parts of a hydroxyl-containing low-molecular-weight compound, 0.5-5 parts of a diamine-type compound, 1-10 parts of an auxiliary agent, and 50-90 parts of an organic solvent. The invention also provides a preparation of the above yellowing-resistant, wear-resistant and alcohol-resistant polyurethane resin and an application thereof in sofa leather. The polyurethane resin has the advantages of simple method and moderate cost. The aliphatic isocyanate and diamine type compounds are introduced into the raw material, such that the yellowing resistance of the product is realized. Polycarbonate diol is introduced, such that the product is provided with excellent wear resistance and alcohol resistance. The solid content of resin is regulated to approximately 20%, such that the resin is provided with good low-temperature storage stability.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a non-yellowing, wear-resistant and alcohol-resistant polyurethane resin and its preparation method and application. Background technique [0002] At present, in the sofa leather market, genuine leather resources are increasingly scarce and expensive. With the development of synthetic leather technology in recent years, synthetic leather is very close to genuine leather in terms of style and feel, and even surpasses genuine leather in some aspects. At the same time, due to the low price and various styles of synthetic leather clothing, synthetic leather has already occupied a certain proportion of sofa products and is favored by foreign consumers. Moreover, in recent years, the number of cars owned by Chinese families has gradually increased. In the foreseeable future, with the improvement of people's living standards and income, cars will become a family necessity. The growth of the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/75C08G18/66C08G18/44C08G18/32C08G18/12D06N3/14B32B27/06B32B27/40B32B37/12
CPCC08G18/758B32B27/06B32B27/40B32B37/12C08G18/12C08G18/3206C08G18/3234C08G18/44C08G18/6637C08G18/664C08G18/6651D06N3/14
Inventor 王质伟吕华波江平
Owner XUCHUAN CHEM SUZHOU
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