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Heat-resistant silicone rubber material and preparation method thereof

A silicone rubber, heat-resistant technology, used in polyether coatings, coatings, etc., can solve the problems of bacterial reproduction and large friction, and achieve the effect of reducing the breeding of bacteria, reducing friction, and avoiding adsorption

Inactive Publication Date: 2022-05-06
万贤钧
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong hydrophobicity of the surface of the silicone rubber material, the friction of the silicone rubber material at the contact interface with the human body is relatively large, which easily causes bacteria to breed. Therefore, a heat-resistant silicone rubber material and a preparation method thereof are urgently needed to solve the problem. question

Method used

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  • Heat-resistant silicone rubber material and preparation method thereof
  • Heat-resistant silicone rubber material and preparation method thereof
  • Heat-resistant silicone rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A heat-resistant silicone rubber material, each silicone rubber material includes the following raw materials in parts by mass: 100 parts of methyl vinyl silicone rubber, 10 parts of white carbon black, 5 parts of KH570 silane coupling agent, and 3 parts of phenol formaldehyde resin , 15 parts of nano silicon dioxide, 15 parts of nano calcium carbonate, 31.2 parts of modified hydrophilic solution, 6 parts of zinc dialkyldithiophosphate, 7 parts of polyimide, 7 parts of triethyl borate and ethyl orthosilicate 10 servings.

Embodiment 2

[0031] A heat-resistant silicone rubber material, each silicone rubber material includes the following raw materials in parts by mass: 115 parts of methyl vinyl silicone rubber, 11 parts of white carbon black, 7 parts of KH570 silane coupling agent, and 5 parts of phenol formaldehyde resin , 18 parts of nano-silica, 18 parts of nano-calcium carbonate, 62.4 parts of modified hydrophilic solution, 8 parts of zinc dialkyl dithiophosphate, 8 parts of polyimide, 8 parts of triethyl borate and ethyl orthosilicate 12 servings.

Embodiment 3

[0033] A heat-resistant silicone rubber material, each silicone rubber material includes the following raw materials in parts by mass: 130 parts of methyl vinyl silicone rubber, 12 parts of white carbon black, 8 parts of KH570 silane coupling agent, and 7 parts of phenol formaldehyde resin , 20 parts of nano silicon dioxide, 20 parts of nano calcium carbonate, 93.6 parts of modified hydrophilic solution, 10 parts of zinc dialkyldithiophosphate, 9 parts of polyimide, 9 parts of triethyl borate and ethyl orthosilicate 13 servings.

[0034] In the above-mentioned examples 1-3, the raw materials for the preparation of the modified hydrophilic solution include absolute ethanol, N, N-dimethylformamide, polyoxyethylene alkylamine, polymethyl silicone resin and phosphorylcholine, and its mass The ratio is 6:1:3:3:11, and the preparation method of the modified hydrophilic solution is as follows:

[0035] Step 1: Add absolute ethanol, N,N-dimethylformamide and phosphorylcholine in turn...

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Abstract

The invention relates to the technical field of silicone rubber material preparation, in particular to a heat-resistant silicone rubber material and a preparation method thereof. Each part of the silicone rubber material is prepared from the following raw materials in parts by mass: 100 to 130 parts of raw rubber, 10 to 12 parts of white carbon black, 5 to 8 parts of a KH570 silane coupling agent, 3 to 7 parts of phenol formaldehyde resin, 30 to 45 parts of a reinforcing filler, 31.2 to 93.6 parts of a modified hydrophilic solution, 5 to 10 parts of zinc dialkyl dithiophosphate, 7 to 9 parts of polyimide, 7 to 9 parts of triethyl borate and 10 to 13 parts of tetraethoxysilane. The preparation method comprises the following steps: S1, weighing the raw materials according to the weight for later use; s2, fully stirring and mixing the raw rubber, the white carbon black, the KH570 silane coupling agent, the reinforcing filler, the zinc dialkyl dithiophosphate, the polyimide and the triethyl borate in a stirrer, and drying in a drying oven at 55 DEG C for 4-6 hours. The hydrophilic ability of the silicone rubber material is improved, and meanwhile, the friction between the silicone rubber material and a human skin contact interface is reduced, so that the effect of effectively inhibiting bacterium breeding is achieved.

Description

technical field [0001] The invention relates to the technical field of silicone rubber material preparation, in particular to a heat-resistant silicone rubber material and a preparation method thereof. Background technique [0002] Silicone rubber refers to the rubber whose main chain is composed of silicon and oxygen atoms alternately, and there are usually two organic groups attached to the silicon atoms. Ordinary silicone rubber is mainly composed of silicone chains containing methyl groups and a small amount of vinyl groups. The introduction of phenyl can improve the high and low temperature resistance of silicone rubber, and the introduction of trifluoropropyl and cyano can improve the temperature and oil resistance of silicone rubber. [0003] In addition, silicone rubber is odorless, non-toxic, resistant to high temperature and severe cold, and has good electrical insulation, oxygen resistance, aging resistance, light resistance, mildew resistance, chemical stability...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L61/10C08L79/08C08K7/26C08K3/36C08K3/26C08K5/00C08K5/5398C08J7/056C09D171/02C09D183/04
CPCC08L83/04C08J7/056C08J7/0427C09D171/02C09D183/04C08K2003/265C08J2383/07C08J2471/02C08J2483/04C08L61/06C08L79/08C08K7/26C08K3/36C08K3/26C08K5/0091C08K5/5398
Inventor 万贤钧
Owner 万贤钧
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