Solvent-free environment-friendly polyurethane automobile leather foamed layer resin, and preparation method and application thereof

A solvent-free, polyurethane technology is applied in the preparation of the resin, in the field of solvent-free environmentally friendly polyurethane foam layer resin for automobile leather, and can solve the problems of surface wear resistance, scratch resistance, physical properties gap, serious production pollution, harmful to human health, etc. , to achieve the best low temperature flexibility and hydrolysis resistance, low VOC content, and excellent solvent resistance.

Active Publication Date: 2014-10-01
XUCHUAN CHEM SUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-based automotive leather has excellent performance, but its fabric and foam layer contain a large amount of DMF, a solvent harmful to the human body, causing serious production pollution. In addition, DMF cannot be completely removed from the leather, which is harmful to human health when used; water-based environmentally friendly polyurethane automotive leather The surface layer, foam layer and adhesive layer resin are currently all water-based polyurethane resin, its surface wear resistance, scratch resistance, and physical properties are far behind solvent-based PU leather, and the price is expensive, so it is difficult to popularize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A solvent-free environment-friendly polyurethane automotive leather foam layer resin, the resin is composed of a solvent hydroxyl mixture A component and an isocyanate B component;

[0049] Described A component is by mass percentage, and the content of its each component is:

[0050] Polyether diol 69.2%;

[0051] Polyether triol 25.0%;

[0052] Liquid chain extender 2.0%;

[0053] Solid chain extender 0.5%;

[0054] Deionized water 0.4%;

[0055] Catalyst 1.0%;

[0056] Light / heat stabilizer 0.5%;

[0057] Cell stabilizer 0.4%;

[0058] Solvent-free color paste 1.0%;

[0059] Described B component is by mass percentage, and the content of its each component is:

[0060] Polyether diol 30.95%;

[0061] Polyether triol 19.97%;

[0062] Aliphatic isocyanate 48.93%;

[0063] Catalyst 0.05%;

[0064] h 3 PO 4 0.1%;

[0065] Wherein, the A component and the B component are mixed in a mass ratio of 2:1.

[0066] Polyether diols are preferabl...

Embodiment 2

[0077] A solvent-free environment-friendly polyurethane automotive leather foam layer resin, the resin is composed of a solvent hydroxyl mixture A component and an isocyanate B component;

[0078] Described A component is by mass percentage, and the content of its each component is:

[0079] Polyether diol 62.7%;

[0080] Polyether triol 29.0%;

[0081] Liquid chain extender 4.5%;

[0082] Solid chain extender 0.5%;

[0083] Deionized water 0.4%;

[0084] Catalyst 1.0%;

[0085] Light / heat stabilizer 0.7%;

[0086] Cell stabilizer 0.4%;

[0087] Solvent-free color paste 0.8%;

[0088] Described B component is by mass percentage, and the content of its each component is:

[0089] Polyether diol 33.9%;

[0090] Polyether triol 15.0%;

[0091] Aliphatic isocyanate 50.95%;

[0092] Catalyst 0.05%;

[0093] h 3 PO 4 0.1%;

[0094] Wherein, the A component and the B component are mixed in a mass ratio of 1.5:1.

[0095] Polyether diols are preferabl...

Embodiment 3

[0106] A solvent-free environment-friendly polyurethane automotive leather foam layer resin, the resin is composed of a solvent hydroxyl mixture A component and an isocyanate B component;

[0107] Described A component is by mass percentage, and the content of its each component is:

[0108] Polyether diol 66.5%;

[0109] Polyether triol 23.5%;

[0110] Liquid chain extender 5.4%;

[0111] Solid chain extender 1.0%;

[0112] Deionized water 0.5%;

[0113] Catalyst 1.0%;

[0114] Light / heat stabilizer 1.0%;

[0115] Cell stabilizer 0.6%;

[0116] Solvent-free color paste 0.5%;

[0117] Described B component is by mass percentage, and the content of its each component is:

[0118] Polyether diol 38.9%;

[0119] Polyether triol 17.0%;

[0120] Aliphatic isocyanate 43.95%;

[0121] Catalyst 0.05%;

[0122] h 3 PO 4 0.1%;

[0123] Wherein, the A component and the B component are mixed in a mass ratio of 1:1.

[0124] Polyether diols are preferably ...

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Abstract

The invention provides a solvent-free environment-friendly polyurethane automobile leather foamed layer resin which is formed by mixing a component A and a component B. The component A is composed of 50.0-85.0% of polyether dibasic alcohol, 10.0-37.5% of polyether tribasic alcohol, 1.5-5.5% of liquid chain extender, 0.5-2.0% of solid chain extender, 0.1-0.8% of deionized water, 0.8-1.2% of catalyst, 0.5-1.0% of light/heat stabilizer, 0.2-1.0% of foam stabilizer and 0.5-1.0% of solvent-free color paste. The component B is composed of 30.0-50.0% of polyether dibasic alcohol, 10.0-30.0% of polyether tribasic alcohol, 35.0-55.0% of aliphatic isocyanate, 0.05-0.1% of catalyst and 0.1-0.2% of H3PO4. The invention also provides a preparation method and application of the resin. The low-temperature bending strength of the resin can reach 0.1 million times at -25 DEG C.

Description

technical field [0001] The invention belongs to the technical field of chemical products and preparation methods thereof, and relates to a solvent-free and environment-friendly polyurethane automobile leather foam layer resin, and also relates to a preparation method and application of the resin. Background technique [0002] According to the statistical analysis of the Association of Automobile Manufacturers, the sales volume of automobiles in my country reached 21.9841 million in 2013, a year-on-year increase of 13.87%. It has increased accordingly, but at present, except for a very small amount of real leather and water-based polyurethane leather, the automotive leather is basically PVC and solvent-based polyurethane automotive leather. [0003] PVC automotive leather is to coat the fiber base cloth with PVC, which needs to add a large amount of plasticizer and other additives. The resulting automotive leather has serious defects such as strong odor, plasticizer is not env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/32C08G18/22C08G18/18C08J9/08D06N3/14B32B27/12B32B27/40C08G101/00
CPCB32B27/12B32B27/40C08G18/4825C08G18/4829C08G18/4854C08G18/6674C08G2110/0083D06N3/14
Inventor 陈小卫吕华波江平
Owner XUCHUAN CHEM SUZHOU
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