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PU (polyurethane)-based vehicle color-change artificial leather and preparation method thereof

A technology of artificial leather and base car, applied in chemical instruments and methods, vehicle parts, lamination, etc., can solve the problem of uneven dispersion and stability of color-changing materials, uneven color of temperature-sensitive color-changing leather, wear resistance, and flame retardancy Low odor and other issues, achieve the effect of enhancing durability, avoiding splitting, and improving uniformity

Pending Publication Date: 2019-12-03
江苏尚科聚合新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature-sensitive color-changing leather that appears on the market, because the color-changing material added to the artificial leather is prone to problems such as uneven dispersion and poor stability, resulting in uneven color such as color spots and poor durability of the temperature-sensitive color-changing leather, which affects the quality of the product. quality
In addition, due to the strict requirements such as high wear resistance, flame retardancy, and low odor of leather for automotive interiors, the thermochromic leather for civilian use in the market cannot meet this requirement.

Method used

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  • PU (polyurethane)-based vehicle color-change artificial leather and preparation method thereof
  • PU (polyurethane)-based vehicle color-change artificial leather and preparation method thereof
  • PU (polyurethane)-based vehicle color-change artificial leather and preparation method thereof

Examples

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preparation example Construction

[0026] The preparation method of the above-mentioned PU-based color-changing artificial leather for vehicles comprises the following steps: (a) coating the surface layer coating liquid on the surface treatment layer, drying at 100°C to 120°C to form the surface layer; (b) A foam layer is formed on the surface layer; (c) a base cloth is pasted on the foam layer. Specifically, in step (a), the surface treatment layer is obtained by coating the surface coating solution on the surface of the release paper, drying and curing at 100°C to 120°C; in step (b), the foam layer It is obtained by coating the foam layer coating solution on the surface of the surface layer, drying and curing at 100°C to 120°C.

[0027] Preferred embodiment of the present invention will be described in detail below:

Embodiment 1

[0029] The present embodiment provides a kind of PU-based color-changing artificial leather for vehicles, which includes a surface layer, a surface treatment layer formed on any surface of the surface layer, a foam layer formed on the other surface of the surface layer, and a foam layer formed on the outer surface of the foam layer. The base fabric layer and the surface layer are obtained by curing the surface layer coating liquid;

[0030] The above-mentioned layers are obtained by drying the corresponding coating liquid, and the specific coating liquid configuration is as follows (the following are the mass contents):

[0031] Surface coating solution configuration: Add 78% of polyurethane resin, 13% of N-vinylimidazolium salt polymer (number average molecular weight: 1000), 2,2,4-trimethyl-1,3-pentanediol mono Isobutyrate 5%, defoamer BYK1790 1%, carboxymethyl cellulose 1%, polymethylurea resin (data molecular weight 1000) 2%, fully stirred at room temperature for 30 minute...

Embodiment 2

[0039] The present embodiment provides a kind of PU-based vehicle color-changing artificial leather and its preparation method, which is basically the same as that in Example 1, except that the surface layer coating liquid contains the following components in mass content:

[0040] Silane coupling agent (vinyltrimethoxysilane, Nanjing Chengong organic silicon CG171) 1.5% (0.28% based on silicon element), temperature-sensitive toner JY031 (Shenzhen Jingyizi Technology Co., Ltd., 31 degrees from colorless to Red temperature-sensitive toner) 10%, pigment (black) 10%, polyurethane resin 75%, additive content is 3.5% (the additive is made of chain extender ethylene glycol 3.0%, defoamer BYK1790 is 0.1%, stable Agent UV-9 is 0.4% mixed).

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Abstract

The invention relates to PU (polyurethane)-based vehicle color-change artificial leather which comprises a surface layer, a surface treatment layer, a foaming layer and a base cloth layer, wherein thesurface treatment layer is formed on any surface of the surface layer; the foaming layer is formed on the other surface of the surface layer; the base cloth layer is formed on the outer surface of the foaming layer; the surface layer is prepared by curing a surface layer coating liquid; the surface layer coating liquid is prepared by mixing a silane coupling agent with a color-change toner, and by further mixing the mixture with a pigment, a polyurethane resin and an aid; the mass percentages of the raw material components in the surface layer are as follows: 0.5-1.5wt% of the silane couplingagent, 5-20wt% of the color-change toner, 0.5-4wt% of the pigment, 60-75wt% of the polyurethane resin and 1.0-20.0% of the aid; and the mass percentage of a silicon element in the silane coupling agent in the surface layer is 0.01-0.5wt%. Therefore, the color-change toner is adopted to form a microcapsule structure, the dispersion uniformity of the color-change toner can be effectively improved,the color-change toner can be prevented from being eroded by other substances, and problems that the color-change toner, is non-uniform to disperse, poor in stability, and the like, can be overcome.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and relates to an artificial leather, in particular to a PU-based color-changing artificial leather for vehicles and a preparation method thereof. Background technique [0002] Thermochromic leather shows different colors at low temperature and high temperature respectively. The color of finished products made of thermochromic leather will change with the change of contact temperature during use, and its color will change from dark to light, or from dark to light, from one color to another, full of The ever-changing mysterious atmosphere is deeply loved by consumers. The temperature-sensitive color-changing leather that appears on the market, because the color-changing material added to the artificial leather is prone to problems such as uneven dispersion and poor stability, resulting in uneven color such as color spots and poor durability of the temperature-sensitive color-changing le...

Claims

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Application Information

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IPC IPC(8): B32B27/40B32B27/20B32B27/12B32B33/00B32B37/02B32B37/24B32B5/02C09D175/04C09D101/28C09D175/02C09D139/04C08G18/44C08G18/48C08G101/00B60R13/02
CPCB32B5/028B32B27/12B32B27/20B32B27/40B32B33/00B32B37/02B32B37/24B32B2037/243B32B2255/10B32B2255/26B32B2255/28B32B2266/0264B32B2307/4026B32B2307/404B32B2307/546B32B2307/554B32B2307/714B32B2605/08B60R13/02C08G18/4018C08G18/44C08G18/4854C08G2101/00C09D175/04C08L1/286C08L75/02C08L39/04
Inventor 张晓良
Owner 江苏尚科聚合新材料有限公司
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