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Waterborne polyurethane resin

A water-based polyurethane and resin technology, applied in textiles and papermaking, etc., can solve the problems of not being cold-resistant and unable to meet the requirements of low-temperature environment, and achieve the effects of improved performance, improved peel strength and water resistance, and excellent cold resistance.

Inactive Publication Date: 2017-03-15
南通万顺化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the water-based polyurethane is used for clothing leather veneer, it is heated to a semi-dry state for veneering. The pasted leather feels extremely soft and has high peel strength. However, this water-based polyurethane resin is extremely cold-resistant and cannot meet the requirements of low-temperature environments.

Method used

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  • Waterborne polyurethane resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The water-based polyurethane resin of this embodiment, the water-based polyurethane resin includes the following raw material components and parts by weight: 20 parts of polyester polyol, 80 parts of tetrafluorofuran-propylene oxide copolyethylene glycol, 16 parts of isophorone diisocyanate, chain extension 10 parts of agent, 5 parts of salt-forming agent, 2 parts of organic bismuth catalyst and 400 parts of water; among them, polyester polyol is formed by mixing polycaprolactone polyol and polycarbonate polyol, polycaprolactone polyol 12.6 parts, polycarbonate polyol 7.4 parts; the chain extender is a mixture of ethylene glycol and isophorone diamine, 4 parts of ethylene glycol, 6 parts of isophorone diamine; the salt forming agent is three A mixture of ethylamine and acetic acid, 2.83 parts of triethylamine, 2.17 parts of acetic acid.

Embodiment 2

[0017] The water-based polyurethane resin of this embodiment, the water-based polyurethane resin includes the following raw material components and parts by weight: 20 parts of polyester polyol, 80 parts of tetrafluorofuran-propylene oxide copolyethylene glycol, 16 parts of isophorone diisocyanate, chain extension 10 parts of agent, 5 parts of salt-forming agent, 2 parts of organic bismuth catalyst and 400 parts of water; among them, polyester polyol is formed by mixing polycaprolactone polyol and polycarbonate polyol, polycaprolactone polyol 13.55 parts, 6.45 parts of polycarbonate polyol; the chain extender is a mixture of ethylene glycol and isophorone diamine, 3.33 parts of ethylene glycol, 6.67 parts of isophorone diamine; the salt forming agent is three A mixture of ethylamine and acetic acid, 3.15 parts of triethylamine, 1.85 parts of acetic acid.

Embodiment 3

[0019] The water-based polyurethane resin of this embodiment, the water-based polyurethane resin includes the following raw material components and parts by weight: 20 parts of polyester polyol, 80 parts of tetrafluorofuran-propylene oxide copolyethylene glycol, 16 parts of isophorone diisocyanate, chain extension 10 parts of agent, 5 parts of salt-forming agent, 2 parts of organic bismuth catalyst and 400 parts of water; among them, polyester polyol is formed by mixing polycaprolactone polyol and polycarbonate polyol, polycaprolactone polyol 13.1 parts, 6.9 parts of polycarbonate polyol; the chain extender is a mixture of ethylene glycol and isophorone diamine, 3.64 parts of ethylene glycol, 6.36 parts of isophorone diamine; the salt forming agent is three A mixture of ethylamine and acetic acid, 3 parts of triethylamine, 2 parts of acetic acid.

[0020] The following table 1 is polycaprolactone polyol and polycarbonate polyol in polyester polyol in embodiment 1-3, ethylene g...

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Abstract

The invention relates to waterborne polyurethane resin. The waterborne polyurethane resin comprises, by weight, 20-40 parts of polyester polyol, 60-80 parts of polyether polyol, 12-16 parts of polyisocyanate, 4-10 parts of chain extender, 1-5 parts of salt-forming agent, 1-2 parts of organic bismuth catalyst and 200-400 parts of water. The polyester polyol is formed by mixing polycaprolactone polyol and aliphatic polycarbonate, the polyether polyol is tetrafluorohydrazine-propylene oxide copolymer diol, and the chain extender is formed by mixing ethylene glycol and IPDA. The waterborne polyurethane resin has the advantages that the waterborne polyurethane resin can be resistant to cold by adjusting components in the formula and the ratio of the components, and when the waterborne polyurethane resin is used for clothing leather facing, a fitting layer is soft in hand feeling, high in peel strength and good water resistance.

Description

technical field [0001] The invention relates to the technical field of high molecular polymers, in particular to a water-based polyurethane resin. Background technique [0002] Synthetic leather can be divided into polyurethane garment leather, synthetic leather for shoes, automobile leather and sofa leather. Different fields have different performance requirements for leather, and clothing leather has higher requirements for comfort and functionality. For example, leather is required to have good air permeability, sensuality, soft handle, hydrolysis resistance, wear resistance and scratch resistance, and stretchability. In addition, when developing garment leather products, the balance between leather performance and price must be pursued to meet the requirements of leather garments in the market. [0003] Water-based polyurethane resin uses water as the dispersion medium, no organic solvent is needed during processing, and the product system does not contain toxic NCO gr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/75C08G18/66C08G18/42C08G18/44C08G18/48C08G18/32C08G18/22D06N3/14
CPCC08G18/755C08G18/0814C08G18/227C08G18/3206C08G18/3234C08G18/4018C08G18/4277C08G18/44C08G18/4854C08G18/6607C08G18/6618D06N3/146D06N3/147D06N2209/1621D06N2209/1642D06N2209/1664D06N2209/1678D06N2211/28
Inventor 徐顺乐
Owner 南通万顺化工科技有限公司
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