Solvent-free interlayer polyurethane resin for automotive trim leather and preparation method thereof

A polyurethane resin, automotive interior technology, applied in the field of synthetic leather, can solve problems such as difficulties, achieve the effects of reducing energy consumption, ensuring high temperature durability and various mechanical properties, and ensuring continuous production operability and reactivity

Active Publication Date: 2016-12-14
HEFEI ANLI POLYURETHANE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the limitations of the current industry technology, it is difficult to use water-based polyurethane resin or solvent-free polyurethane resin to process environmentally friendly automotive leather, no matter in terms of the physical properties of the finished product or in terms of processing operations.

Method used

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  • Solvent-free interlayer polyurethane resin for automotive trim leather and preparation method thereof
  • Solvent-free interlayer polyurethane resin for automotive trim leather and preparation method thereof
  • Solvent-free interlayer polyurethane resin for automotive trim leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A solvent-free polyurethane resin for the middle layer of automotive interior leather, which is composed of component A and component B mixed in a mass ratio of 2.5:1:

[0033] Described A component is constituted as follows according to the ratio of parts by mass:

[0034]

[0035]

[0036] The B component is composed as follows according to the ratio of parts by mass:

[0037]

[0038] Wannate MDI-100 in component A is pure diphenylmethylene diisocyanate produced by Yantai Wanhua Company, T5652 is a polycarbonate diol with a number average molecular weight of 2000 produced by Japan Asahi Kasei Chemicals Co., Ltd., SP- 2013 is a polyester diol with a number average molecular weight of 2000 produced by Hefei Amway Polyurethane New Materials Co., Ltd., EG and glycerin are commercially available products, MB20 is an organic bismuth catalyst produced by Air Products Company of the United States, and Tinuvin 1130 is a German BASF company The ultraviolet absorber p...

Embodiment 2

[0044] A solvent-free polyurethane resin for the middle layer of automotive interior leather, which is composed of component A and component B mixed in a mass ratio of 1:2.5:

[0045] Described A component is constituted as follows according to the ratio of parts by mass:

[0046]

[0047] The B component is composed as follows according to the ratio of parts by mass:

[0048]

[0049] Wannate MDI-50 in component A is a mixture of 4,4'-MDI and 2,4'-MDI produced by Yantai Wanhua Company, and T5652 is a polycarbonate with a number average molecular weight of 2000 produced by Japan Asahi Kasei Chemicals Co., Ltd. Diol, SP-2313 is a polyester diol with a number average molecular weight of 2000 produced by Hefei Amway Polyurethane New Material Co., Ltd., 1,4-BG and trimethylolpropane TMP are commercially available products, and BiCAT 8108 is a U.S. The organic bismuth catalyst of a leading chemical company, Chisorb P and Chisorb 944 are UV absorbers and light stabilizers of ...

Embodiment 3

[0055] A solvent-free polyurethane resin for the middle layer of automotive interior leather, which is composed of component A and component B mixed in a mass ratio of 1:1:

[0056] Described A component is constituted as follows according to the ratio of parts by mass:

[0057]

[0058]

[0059] The B component is composed as follows according to the ratio of parts by mass:

[0060]

[0061] Wherein, the A component and the B component are mixed in a mass ratio of 1:1.

[0062] Wannate MDI-50 in component A is a mixture of 4,4'-MDI and 2,4'-MDI produced by Yantai Wanhua Company, and T5652 is a polycarbonate with a number average molecular weight of 2000 produced by Japan Asahi Kasei Chemicals Co., Ltd. Dibasic alcohol, 220N is the polycaprolactone diol of Nippon Chemical Industry Co., Ltd. Daicel, 1,3-PG is 1,3-propanediol produced by DuPont Company of the United States, and trimethylolpropane TMP is a commercially available product, Borchi Kat 24 is a metal salt c...

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Abstract

The invention provides a solvent-free interlayer polyurethane resin for automotive trim leather and preparation method thereof. The solvent-free interlayer polyurethane resin is composed of an A component and a B component in a mass ratio of (2.5: 1)-(1: 2.5) through the mixing; the A component is composed of diisocyanate, oligomer dihydric alcohol, micromolecular dihydric alcohol, micromolecular trihydric alcohol, catalyst, light/heat stabilizer, flatting agent and solvent-free color paste; the B component is composed of diisocyanate, triisocyanate, oligomer dihydric alcohol, micromolecular dihydric alcohol, micromolecular trihydric alcohol and antioxidant. The polyurethane resin prepared by the method disclosed by the invention can be used as the interlayer for the automotive trim leather, the high temperature durable performance and various mechanical properties of the automotive leather can be effectively guaranteed while meeting the hydrolysis resistance of the automotive leather product; the peeling strength of the prepared automotive leather product reaches up to 145N/3cm, the hydrolysis resistance can reach the condition that the peeling strength still reaches up to 135N/3cm after 10 weeks.

Description

technical field [0001] The technology belongs to the field of synthetic leather, and relates to a solvent-free intermediate layer polyurethane resin for automotive interior leather, and also relates to a preparation method of the resin. Background technique [0002] With the continuous improvement of living standards, people have put forward higher and higher requirements for the interior conditions of passenger cars, especially for the functionality, aesthetics, comfort and environmental protection performance of car interiors. At present, the automotive interior leather on the market is mainly composed of natural leather and PVC artificial leather. Natural leather is made of animal skin, which is harmful to animals, and is gradually resisted by animal protection organizations; while PVC artificial leather is comfortable. In recent years, it has been gradually replaced by polyurethane (PU) synthetic leather with high weather resistance. [0003] Solvent-based polyurethane ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/76C08G18/79C08G18/66C08G18/48C08G18/42C08G18/44C08G18/12D06N3/18D06N3/14
CPCC08G18/12C08G18/42C08G18/4277C08G18/44C08G18/4854C08G18/6607C08G18/6611C08G18/6674C08G18/6677C08G18/724C08G18/7671C08G18/795D06N3/146D06N3/147D06N3/18D06N2211/263
Inventor 李晓飞武春余王海峰孔为青笪丽红范培宏吴文胡俊姚克俭黄万里
Owner HEFEI ANLI POLYURETHANE NEW MATERIAL
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