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Soft wear-resistant silica gel leather and preparation method thereof

A technology of silica gel and leather, which is applied in coating, textile and paper making, etc., can solve the problem of non-abrasion of artificial leather, achieve the effect of enhancing wear resistance, soft hand feeling and reducing production cost

Active Publication Date: 2021-07-27
DONGGUAN TIANAN SILICONES TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a soft wear-resistant silicone leather and its preparation method, aiming to solve the technical problem that the artificial leather in the prior art is not wear-resistant

Method used

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  • Soft wear-resistant silica gel leather and preparation method thereof
  • Soft wear-resistant silica gel leather and preparation method thereof
  • Soft wear-resistant silica gel leather and preparation method thereof

Examples

Experimental program
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preparation example Construction

[0038] The preparation method of the soft wear-resistant silicone leather provided in the embodiments of the present invention comprises the following steps:

[0039] 1) Prepare the surface layer of silica gel 3: weigh methyl vinyl silicone resin, polymethyl vinyl siloxane, fumed silica, polymethyl hydrogen siloxane, platinum catalyst and matte reinforcement according to the proportion Mix and dilute the raw materials of the silica gel surface layer 3 and the diluent according to the mass ratio of 1:1 to obtain the first mixture, electrostatically spray the proportioned amount of fluorine-containing particles on a release paper, and then place it on the release paper. Coating the first mixture on the type paper, sending it into an oven, heating and curing, and curing to form the silica gel surface layer 3, one side of the silica gel surface layer 3 is attached to the release paper, and the other side is the coating surface;

[0040]2) Preparation of middle layer silica gel lay...

Embodiment 1-4

[0052] The preparation method of the soft type wear-resistant silicone leather of embodiment 1-4, comprises the following steps:

[0053] 1) Prepare the surface layer of silica gel 3: weigh methyl vinyl silicone resin, polymethyl vinyl siloxane, fumed silica, polymethyl hydrogen siloxane, platinum catalyst and matte reinforcement according to the proportion Mix and dilute the raw materials of the silica gel surface layer 3 and the diluent according to the mass ratio of 1:1 to obtain the first mixture, electrostatically spray the proportioned amount of fluorine-containing particles on a release paper, and then place it on the release paper. Coating the first mixture on the type paper, sending it into an oven, heating and curing, and curing to form the silica gel surface layer 3, one side of the silica gel surface layer 3 is attached to the release paper, and the other side is the coating surface;

[0054] 2) Preparation of middle silica gel layer 2: weigh methyl vinyl siloxane,...

Embodiment 5

[0078] In this embodiment, the wear resistance of the silica gel surface layer prepared in Example 1 and Comparative Examples 1-7 is tested. The test method is as follows: according to GB / T9867-1988, the GT-7012-D rubber wear tester is used for the wear test. The weight load is 2.5N. See Table 3 and Table 4 for test results.

[0079] table 3

[0080] Fluorine Resin Powder Abrasion / (cm 3 .kg -1 )

Example 1 Tetrafluoroethylene perfluoroalkyl vinyl ether copolymer resin 0.0211 Comparative example 1 / 0.1354 Comparative example 2 PTFE 0.0514 Comparative example 3 Copolymer of ethylene and tetrafluoroethylene 0.0447

[0081] It can be seen from Table 3 that the addition of fluorine-containing resin powder can indeed reduce the wear of the surface layer of silica gel and enhance its wear resistance. Among them, the wear of the surface layer of silica gel is the lowest after adding tetrafluoroethylene perfluoroalkyl vinyl ether ...

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Abstract

The invention belongs to the technical field of artificial leather, and particularly relates to soft wear-resistant silica gel leather and a preparation method thereof. The soft wear-resistant silica gel leather comprises a base material, a middle silica gel layer and a silica gel surface layer. The middle silica gel layer is arranged on the surface of the base material and comprises the following raw materials in percentage by mass of 50%-70% of methyl vinyl siloxane, 0.5%-1% of polymethylhydrosiloxane, 0.1%-0.5% of a platinum catalyst, 3%-10% of phenyl silicone rubber and 20%-45% of fumed silica. The silica gel surface layer is arranged on the surface of the middle silica gel layer and comprises the following raw materials in percentage by mass of 20-30% of methyl vinyl silicone resin, 30-50% of polymethylvinyl siloxane, 20-30% of fumed silica, 0.5-1% of polymethylhydrosiloxane, 0.1-0.5% of a platinum catalyst, 5-15% of matte reinforcing micro powder and 0.1-0.8% of fluorine-containing particles. According to the soft wear-resistant silica gel leather, the phenyl silicone rubber is added into the middle silica gel layer, and the phenyl and the fumed silica are introduced for reinforcement, so that the wear resistance is enhanced.

Description

technical field [0001] The invention belongs to the technical field of artificial leather, in particular to a soft wear-resistant silicone leather and a preparation method thereof. Background technique [0002] The traditional artificial leather is made of various formulations of PVC and PU foamed or coated on a woven or non-woven fabric base. Artificial leather is mainly used in clothing, automotive interiors, furniture and other products. [0003] The leather surface of the existing artificial leather is astringent, rigid, poor in softness, and there is a large gap between the touch and genuine leather. Moreover, the existing artificial leather has poor abrasion resistance, and after long-term friction, phenomena such as leather surface wear, wear-through, and wear will occur, which seriously affects the appearance of the product. Contents of the invention [0004] The object of the present invention is to provide a soft wear-resistant silicone leather and a preparatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00D06N3/12
CPCD06N3/128D06N3/0063D06N3/0068D06N3/0097D06N2209/1685D06N2211/28D06N2213/03
Inventor 成家新
Owner DONGGUAN TIANAN SILICONES TECH
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