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Preparation method for silicone rubber polyurethane synthetic leather

A technology of silicone rubber and polyurethane, which is applied in the direction of textiles and papermaking, etc., can solve the problems that restrict the application of polyurethane synthetic leather, low surface tension and free energy, and large surface friction coefficient, and achieve good elasticity, self-flammability and self-decontamination Strong ability and good tensile strength

Inactive Publication Date: 2017-02-01
ANHUI ANLI MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, polyurethane synthetic leather has some problems in terms of weather resistance, flame retardancy, decontamination performance and comfort, which restricts the further application of polyurethane synthetic leather.
[0005] Silicone rubber is a new type of environmentally friendly material, odorless and non-toxic. In addition to the properties of general polyurethane materials, silicone rubber has a natural affinity for human skin and has excellent flame retardant and self-decontamination properties. However, the silicone rubber material itself The surface tension and free energy are low, and its bonding performance with other substrates is poor. In addition, the surface friction coefficient of the material is large, and the wear resistance is average. These factors affect its application in the field of synthetic leather.

Method used

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  • Preparation method for silicone rubber polyurethane synthetic leather
  • Preparation method for silicone rubber polyurethane synthetic leather
  • Preparation method for silicone rubber polyurethane synthetic leather

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The preparation method of silicone rubber polyurethane synthetic leather in the present embodiment is as follows:

[0032] 1. The preparation of silicone polyurethane resin slurry is prepared by mixing the following raw materials in parts by mass:

[0033]

[0034]

[0035] 2. The preparation of addition-type silicone rubber slurry is prepared by mixing the following raw materials in parts by mass:

[0036]

[0037] 3. Preparation of transfer film

[0038] Coat the addition-type silicone rubber slurry evenly on the front of the release paper, control the coating thickness at 0.10mm, and dry at 130°C for 2.5 minutes to obtain a surface layer film; evenly coat the silicone polyurethane resin on the surface layer film The slurry is used as a bonding layer, the coating thickness is controlled at 0.30mm, and the transfer film is obtained by drying at 120°C for 3.5 minutes;

[0039] 4. Ripening

[0040] Lay the transfer film prepared in step 4 with the impregnated...

Embodiment 2

[0042] The preparation method of silicone rubber polyurethane synthetic leather in the present embodiment is as follows:

[0043] 1. The preparation of silicone polyurethane resin slurry is prepared by mixing the following raw materials in parts by mass:

[0044]

[0045] 2. The preparation of addition-type silicone rubber slurry is prepared by mixing the following raw materials in parts by mass:

[0046]

[0047] 3. Preparation of transfer film

[0048] Coat the addition-type silicone rubber slurry evenly on the front of the release paper, control the coating thickness at 0.15mm, and dry at 125°C for 3 minutes to obtain a surface layer film; evenly coat the silicone polyurethane resin on the surface layer film The slurry is used as a bonding layer, the coating thickness is controlled at 0.35mm, and the transfer film is obtained by drying at 110°C for 5 minutes;

[0049] 4. Ripening

[0050] Lay the transfer film prepared in step 4 with the impregnated cloth base, dry...

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Abstract

The invention discloses a preparation method for silicone rubber polyurethane synthetic leather. The preparation method includes the steps of preparing and aging a transfer film and particularly includes the steps of: uniformly coating the front side of release paper with addition-type silicone rubber slurry, and drying the slurry to form a surface layer thin film; uniformly coating the surface layer thin film with organic silicon polyurethane resin slurry to form a binding layer, and drying the binding layer to form the transfer film; laminating the transfer film with impregnated cloth base, and drying and cooling and shaping the transfer film and stripping the transfer film from the release paper to form a finish product. The product has high tensile strength, high tear strength, excellent hydrolysis and weather resistance, good elasticity and soft touch sense. The material has natural affinity on skin. Functionally, the material has outstanding self-flame retarding and self-anti-fouling performances which are incomparable for similar materials, such as PVC, PU synthetic leather, real leather and the like, so that the material can be widely applied in the fields of furniture, clothing, luggage cases, shoe materials, car interiors, electronic packages, sports equipment, indoor decoration, etc.

Description

[0001] 1. Technical field [0002] The invention relates to a preparation method of silicone rubber polyurethane synthetic leather. [0003] 2. Background technology [0004] Polyurethane synthetic leather belongs to the category of polyurethane elastomer materials. In addition to having a soft and natural luster and a strong leather-like appearance, it also has excellent mechanical properties such as abrasion resistance, flex resistance, and aging resistance. The application fields involve footwear, luggage bags, etc. , ball games, furniture and automotive interiors and other fields. However, polyurethane synthetic leather has some problems in terms of weather resistance, flame retardancy, decontamination performance and comfort, which restricts the further application of polyurethane synthetic leather. [0005] Silicone rubber is a new type of environmentally friendly material, odorless and non-toxic. In addition to the properties of general polyurethane materials, silicone ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/12D06N3/00D06N3/18
CPCD06N3/14D06N3/0097D06N3/12D06N3/183D06N2203/066D06N2203/068D06N2209/067D06N2209/146D06N2209/1685D06N2211/28
Inventor 黄万里刘志球胡兆阳笪丽红胡俊陈宇吴文范培宏
Owner ANHUI ANLI MATERIAL TECH
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