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Preparation method of wear-resisting anti-fouling solvent-free polyurethane automobile leather

A solvent-free polyurethane and automotive leather technology, which is used in motor vehicles, road vehicles, transportation and packaging, etc., can solve the problems of high evaporation enthalpy, no widespread promotion of water-based synthetic leather, and high production energy consumption, and achieves easy care, Excellent decontamination performance and the effect of improving wear resistance

Inactive Publication Date: 2017-02-22
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Oily polyurethane synthetic leather uses DMF as a solvent, the production process is mature, and the product performance is stable. A large amount of solvents are used in production, which leads to certain environmental risks in the process; while water-based synthetic leather uses water as a dispersant, and its process route is similar to that of oily polyurethane synthetic leather. Similar, the process is relatively mature, but due to the large evaporation enthalpy of water, high production energy consumption, and high resin synthesis cost, because its coating structure is made of microsphere particles layered, there are certain defects in its performance. , water-based synthetic leather has not been widely promoted; in the production process of solvent-free synthetic leather, no solvent is added to the raw materials

Method used

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  • Preparation method of wear-resisting anti-fouling solvent-free polyurethane automobile leather
  • Preparation method of wear-resisting anti-fouling solvent-free polyurethane automobile leather
  • Preparation method of wear-resisting anti-fouling solvent-free polyurethane automobile leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] In the present embodiment, the preparation method of wear-resistant and antifouling solvent-free polyurethane automotive leather is as follows:

[0046] 1. Evenly coat the surface layer slurry on the surface of the release paper, the coating thickness is 0.12mm, and dry at 120°C for 2.5min to obtain the surface layer film;

[0047] The surface layer slurry is formed by mixing the following raw materials in parts by mass:

[0048] Compact-A, 100 copies;

[0049] Compact-B, 71 copies;

[0050] Polyvinylidene fluoride PVDF, 3.3 parts;

[0051] Pigment, several parts.

[0052] 2. Evenly coat the foam layer slurry on the surface film, with a coating thickness of 0.28mm, and dry at 115°C for 2 minutes, and the coating retains a certain degree of adhesion;

[0053] The foam layer slurry is formed by mixing the following raw materials in parts by mass:

[0054] Foam-A, 100 parts;

[0055] Foam-B, 60 parts;

[0056] Surfactant BYK-349, 0.15 parts.

[0057] 3. Lay the coa...

Embodiment 2

[0064]In the present embodiment, the preparation method of wear-resistant and antifouling solvent-free polyurethane automotive leather is as follows:

[0065] 1. Evenly coat the surface layer slurry on the surface of the release paper, the coating thickness is 0.15mm, and dry at 125°C for 2 minutes to prepare the surface layer film;

[0066] The surface layer slurry is formed by mixing the following raw materials in parts by mass:

[0067] Compact-A, 100 copies;

[0068] Compact-B, 68 copies;

[0069] Polyvinylidene fluoride PVDF, 1.4 parts;

[0070] Pigment, several parts.

[0071] 2. Evenly coat the foam layer slurry on the surface film, the coating thickness is 0.25mm, and dry at 120°C for 1min, and the coating retains a certain degree of adhesion;

[0072] The foam layer slurry is formed by mixing the following raw materials in parts by mass:

[0073] Foam-A, 100 parts;

[0074] Foam-B, 55 parts;

[0075] Surfactant BYK-349, 0.2 parts.

[0076] 3. Lay the coating o...

Embodiment 3

[0083] In the present embodiment, the preparation method of wear-resistant and antifouling solvent-free polyurethane automotive leather is as follows:

[0084] 1. Evenly coat the surface layer slurry on the surface of the release paper, the coating thickness is 0.10mm, and dry at 135°C for 1.5min to obtain the surface layer film;

[0085] The surface layer slurry is formed by mixing the following raw materials in parts by mass:

[0086] Compact-A, 100 copies;

[0087] Compact-B, 70 copies;

[0088] Polyvinylidene fluoride PVDF, 1.4 parts;

[0089] Pigment, several parts.

[0090] 2. Evenly coat the foam layer slurry on the surface film, the coating thickness is 0.3mm, and dry at 125°C for 1.5min, and the coating retains a certain degree of adhesion;

[0091] The foam layer slurry is formed by mixing the following raw materials in parts by mass:

[0092] Foam-A, 100 parts;

[0093] Foam-B, 62 parts;

[0094] Surfactant BYK-349, 0.35 parts.

[0095] 3. Lay the coating ob...

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Abstract

The invention discloses a preparation method of wear-resisting anti-fouling solvent-free polyurethane automobile leather. The surface of release paper is uniformly coated with a surface layer sizing agent, and drying is performed to obtain a surface layer leather film; the surface layer leather film is uniformly coated with a foaming layer sizing agent, drying is performed till the coatings have the certain adhesive property; all the coatings and synthetic leather base cloth are laminated, drying and curing are performed, and then the release paper is peeled off to obtain a dry method semi-finished product; the front face of the dry method semi-finished product is coated with an anti-fouling coating, and drying and solidification are performed to obtain a finished product. The method has the environmental protection property and functionality, no solvent is adopted in the production technological process, no solvent remains in the product, and the wear-resisting anti-fouling solvent-free polyurethane automobile leather is high in wear-resisting property and excellent in anti-fouling performance.

Description

[0001] 1. Technical field [0002] The invention relates to a production method of solvent-free polyurethane synthetic leather, in particular to a preparation method of wear-resistant, anti-fouling and solvent-free polyurethane automotive leather. [0003] 2. Background technology [0004] With the development of society, people's living standards are improving day by day, and the demand for leather products is also increasing. The performance of artificial leather and synthetic leather, especially polyurethane synthetic leather, is getting closer and closer to that of natural leather. It is the better alternative to natural leather than natural leather. [0005] Polyurethane synthetic leather is classified according to whether solvents are used in the production process and the types of solvents used. It is divided into three types: all-oily polyurethane synthetic leather, all-water-based polyurethane synthetic leather, all-solvent-free polyurethane synthetic leather, and oily...

Claims

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Application Information

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IPC IPC(8): D06N3/00D06N3/12D06N3/14
CPCD06N3/0097D06N3/0043D06N3/0063D06N3/0068D06N3/121D06N3/145D06N3/146D06N2209/146D06N2209/1685D06N2211/263D06N2211/28D06N2213/03
Inventor 笪丽红黄万里沈为春刘志球范培宏吴文胡俊胡兆阳
Owner ANHUI ANLI MATERIAL TECH
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