Preparation method of abrasion-resistant hydrolyzation-resistant polyurethane synthetic leather

A synthetic leather and polyurethane technology, applied in polyurea/polyurethane adhesives, chemical instruments and methods, synthetic resin layered products, etc., can solve problems such as easy hydrolysis, poor wear resistance, and inability to meet the physical property requirements of heavy-duty truck leather. To achieve the effect of improving wear resistance and hydrolysis resistance

Active Publication Date: 2013-03-13
ANHUI ANLI MATERIAL TECH
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AI Technical Summary

Problems solved by technology

Traditional polyurethane synthetic leather has poor wear resistance and is easy t...

Method used

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Embodiment Construction

[0027] The present invention will be further described below through specific implementation methods.

[0028] Polycarbon resin SW-410PC, polycarbon resin ST-130PC and polycarbon resin SA-40PC are all products of Hefei Amway Polyurethane New Material Co., Ltd.; leveling agent BYK-9565 and leveling agent BYK-325 are from Germany BYK Chemical The company's products; cross-linking agent HDN-8075 and cross-linking accelerator HDC-01 are products of Shanghai Huide Chemical Co., Ltd.

[0029] The wear-resistant, hydrolysis-resistant polyurethane synthetic leather of the present invention is prepared according to the following steps:

[0030] 1. Choose a viscose base fabric with softness, good durability, and small water shrinkage;

[0031] 2. Coat the polyurethane slurry on the suede surface of the base fabric, and then put it in the coagulation tank to solidify, wash and dry according to the conventional method to obtain the semi-finished wet-process synthetic leather;

[0032] A...

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Abstract

The invention discloses a preparation method of an abrasion-resistant hydrolyzation-resistant polyurethane synthetic leather, which comprises unit processes including wet-process synthetic leather semi-finished product preparation, transfer membrane preparation, veneering semi-finished product preparation and post processing, and particularly comprises the following steps of: firstly coating polyurethane slurry on the sueded face of a base cloth; then sequentially coagulating in a coagulating tank, washing and drying according to the conventional method to obtain a wet-process synthetic leather semi-finished product; uniformity coating polycarbonate slurry on the front surface of release paper, and drying to obtain a surface membrane; then uniformity coating two-component polycarbonate slurry on the surface membrane to obtain a bonding layer, and drying to obtain a transfer membrane; bonding the transfer membrane and the wet-process synthetic leather semi-finished product, drying, cooling for shaping, and then stripping off the release paper to obtain a veneering semi-finished product; and then conventionally immersing in water, diving in water, rubbing patterns and drying to obtain a finished product. The product prepared by the preparation method disclosed by the invention cannot be abraded by a H-18 mill working at the speed of 5000 rounds and has the 10 years durability.

Description

1. Technical field [0001] The invention relates to a preparation method of functional polyurethane synthetic leather, in particular to a preparation method of wear-resistant and hydrolysis-resistant polyurethane synthetic leather, which is mainly used in the production of heavy truck seat and interior leather. 2. Background technology [0002] Polyurethane synthetic leather is a kind of imitation leather synthetic leather with woven or non-woven fabric as the base material, coated with polyurethane resin to make it have different colors, pattern appearance effects, different physical properties and different handles. Traditional polyurethane synthetic leather has poor wear resistance and is easy to hydrolyze, which cannot meet the physical property requirements of heavy truck leather. 3. Contents of the invention [0003] The present invention aims to provide a method for preparing wear-resistant and hydrolysis-resistant polyurethane synthetic leather. The technical proble...

Claims

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Application Information

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IPC IPC(8): D06N3/12B32B27/40B32B27/08B32B37/02C08L75/04C08L97/00C09J175/04
Inventor 笪丽红黄万里王燕武张宁华陈茂祥张吕香王锐林朱国伟
Owner ANHUI ANLI MATERIAL TECH
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