Easily-dyed waterborne polyurethane resin as well as preparation method and application of waterborne polyurethane resin

A technology of water-based polyurethane and polyurethane resin, which is applied in the directions of dyeing, textile and paper making, etc., to achieve the effects of simple preparation method, simple dyeing process and cheap raw materials

Inactive Publication Date: 2014-09-10
XUCHUAN CHEM SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are few public reports on water-based polyurethane resins that are easy to dye, have good color fastness, and are waterproof and moisture-permeable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of easily dyeable waterborne polyurethane resin, the preparation raw material of this polyurethane resin comprises the component of following weight percent except water:

[0040] (1) Monohydric or polyhydric compounds: 52.7%, specifically 17.4kg of polyethylene adipate glycol hexanediol (molecular weight 1000), 13.1kg of polyethylene oxide and tetrahydrofuran diol (molecular weight 1500);

[0041] (2) Ionic or potential hydrophilic compound: 4.5%, specifically 2.6kg of hydrophilic compound, the hydrophilic compound can choose any reasonable disulfamic acid salt, dimethylol propionic acid, dimethylol butyric acid , one or more of hydroxypivalic acid, 2-(2-aminoethylamino)ethanesulfonic acid, N-methyldiethanolamine and cyclohexylaminopropanesulfonic acid;

[0042] (3) Aliphatic isocyanate compounds: 33.3%, specifically 19.3kg of dicyclohexylmethane diisocyanate (HMDI);

[0043] (4) Low molecular weight compounds: 5%, specifically 2.9kg of ethylene glycol;

[004...

Embodiment 2

[0049] A kind of easily dyeable waterborne polyurethane resin, the preparation raw material of this polyurethane resin comprises the component of following weight percent except water:

[0050] (1) Monohydric or polyhydric compound: 60.8%, specifically 17.4kg polyethylene adipate glycol hexanediol (molecular weight 1000), 17.8kg polyoxypropylene and tetrahydrofuran diol (molecular weight 1500), this The polyethylene adipate glycol hexanediol at place can also be polyneopentyl glycol adipate hexanediol or polyadipate neopentyl glycol butylene glycol;

[0051] (2) Ionic or potential hydrophilic compound: 9.7%, specifically 5.6kg of hydrophilic compound, the hydrophilic compound can choose any reasonable disulfamic acid salt, dimethylol propionic acid, dimethylol butyric acid , one or more of hydroxypivalic acid, 2-(2-aminoethylamino)ethanesulfonic acid, N-methyldiethanolamine and cyclohexylaminopropanesulfonic acid;

[0052] (3) Aliphatic isocyanate compound: 20%, specifically ...

Embodiment 3

[0059] A kind of easily dyeable waterborne polyurethane resin, the preparation raw material of this polyurethane resin comprises the component of following weight percent except water:

[0060] (1) Monohydric or polyhydric compound: 57%, specifically 14.85kg polyethylene adipate hexanediol (molecular weight 1000), 17.28kg polyoxyethylene-tetrahydrofuran copolymer glycol (molecular weight 1500), 4.11kg monohydroxy polyoxyethylene alcohol;

[0061] (2) Ionic or potential hydrophilic compound: 4.1%, specifically 2.6kg of hydrophilic compound, the hydrophilic compound can choose any reasonable disulfamic acid salt, dimethylol propionic acid, dimethylol butyric acid , one or more of hydroxypivalic acid, 2-(2-aminoethylamino)ethanesulfonic acid, N-methyldiethanolamine and cyclohexylaminopropanesulfonic acid;

[0062] (3) Aliphatic isocyanate compounds: 31.6%, specifically 20.1kg of dicyclohexylmethane diisocyanate (HMDI);

[0063] (4) Low molecular weight compounds: 2.9%, specific...

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PUM

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Abstract

The invention provides an easily-dyed waterborne polyurethane resin. The polyurethane resin comprises the following components in percentage by weight: 40%-80% of a monohydroxy or polyhydroxy compound, 0.5%-20% of an ionic or potential hydrophilic compound, 10%-45% of an aliphatic isocyanate compound, 0.5%-10% of low molecular weight compound, 0%-10% of auxiliaries and additives and the balance of water, wherein the monohydric or polyhydric compound comprises 20 wt%-60 wt% of the polyester polyol, 15 wt%-50 wt% of polyether polyol and 0 wt%-30 wt% of monohydroxy polyether. The invention also provides a preparation method and an application of the polyurethane resin. The waterborne polyurethane resin prepared by the invention is easily dyed, simple in dyeing process and has good high temperature resistance and color fastness, excellent resistance to light as well as a certain waterproof property and moisture penetrability.

Description

technical field [0001] The invention belongs to the technical field of chemical products and preparation methods thereof, and relates to an easy-to-dye water-based polyurethane resin and a preparation method thereof, and a dyeing process application of the resin to synthetic leather. Background technique [0002] Water-based polyurethane resin uses water as the dispersion medium, and has the advantages of non-combustibility, non-toxicity, safety, and environmental protection. The development and application of water-based polyurethane resin has become a research hotspot at home and abroad. Research centers have invested a lot of manpower and material resources in the research and development of waterborne polyurethane resin. However, ordinary water-based polyurethane has poor dyeing effect at room temperature and poor heat resistance. [0003] At present, solvent-based polyurethane resin is used as the basic raw material of traditional synthetic leather products, and most o...

Claims

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Application Information

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IPC IPC(8): C08G18/75C08G18/66C08G18/48C08G18/42D06N3/14D06P1/39D06P3/24
CPCC08G18/758C08G18/0814C08G18/0823C08G18/0828C08G18/283C08G18/4018C08G18/4238C08G18/4854C08G18/6607C08G18/6611C08G18/6618D06N3/146D06P1/39
Inventor 颜志鸿江平吕华波
Owner XUCHUAN CHEM SUZHOU
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