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White-carbon-black-free solid silicone rubber for high-hardness rubber roller, and preparation method of white-carbon-black-free solid silicone rubber

A technology of white carbon black and high hardness, which is applied in the field of solid silicone rubber for high hardness rubber rollers and its preparation, and can solve problems affecting the normal production of plastic films and the peeling properties of films and rubber rollers.

Inactive Publication Date: 2020-10-20
福建固泰有机硅材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned technical defects, white carbon black and structural control agent are added to the formula of the silicone rubber of the rubber roller, so that the surface of the silicone rubber of the rubber roller has a certain viscosity after vulcanization molding, thereby affecting the film and glue in the production process of the plastic film. The peelability of the roll affects the normal production of plastic film

Method used

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  • White-carbon-black-free solid silicone rubber for high-hardness rubber roller, and preparation method of white-carbon-black-free solid silicone rubber
  • White-carbon-black-free solid silicone rubber for high-hardness rubber roller, and preparation method of white-carbon-black-free solid silicone rubber
  • White-carbon-black-free solid silicone rubber for high-hardness rubber roller, and preparation method of white-carbon-black-free solid silicone rubber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] A solid silicone rubber for high-hardness rubber rollers without silica, made of the following raw materials by weight:

[0058] Raw methyl vinyl silicone rubber: 1000kg;

[0059] Polysilsesquioxane: 300kg;

[0060] Diatomite: 400kg;

[0061] Silane coupling agent: 1kg;

[0062] Among them, the molar mass of methyl vinyl silicone rubber raw rubber is 40W, the vinyl content of methyl vinyl silicone rubber raw rubber is 0.03%-1%, and the average particle size of polysilsesquioxane is 0.1-100um , The silane coupling agent is KH792.

[0063] Above-mentioned a kind of preparation method of solid silicon rubber for high hardness rubber roller not containing white carbon black comprises the following steps:

[0064] S1. Mix methyl vinyl silicone rubber raw rubber, polysilsesquioxane and silane coupling agent into a mass in a kneader, and control the temperature system to 100°C;

[0065] S2, heat up to 160°C in the kneader, heat treatment for 2h;

[0066] S3. Cool the pro...

Embodiment 2

[0068] A solid silicone rubber for high-hardness rubber rollers without silica, made of the following raw materials by weight:

[0069] Raw methyl vinyl silicone rubber: 1000kg;

[0070] Polysilsesquioxane: 500kg;

[0071] Diatomite: 200kg;

[0072] Silane coupling agent: 5kg;

[0073] Among them, the molar mass of methyl vinyl silicone rubber raw rubber is 50W, the vinyl content of methyl vinyl silicone rubber raw rubber is 0.03%-1%, and the average particle size of polysilsesquioxane is 0.1-100um , The silane coupling agent is KH560.

[0074] Above-mentioned a kind of preparation method of solid silicon rubber for high hardness rubber roller not containing white carbon black comprises the following steps:

[0075] S1. Mix methyl vinyl silicone rubber raw rubber, polysilsesquioxane and silane coupling agent into a mass in a kneader, and control the temperature system to 90°C;

[0076] S2, heat up to 155° C. in a kneader, and heat-treat for 3 hours;

[0077] S3. Cool the...

Embodiment 3

[0079] A solid silicone rubber for high-hardness rubber rollers without silica, made of the following raw materials by weight:

[0080] Raw methyl vinyl silicone rubber: 1000kg;

[0081] Polysilsesquioxane: 600kg;

[0082] Diatomite: 200kg;

[0083] Silane coupling agent: 10kg;

[0084] Among them, the molar mass of methyl vinyl silicone rubber raw rubber is 30W, the vinyl content of methyl vinyl silicone rubber raw rubber is 0.03%-1%, and the average particle size of polysilsesquioxane is 0.1-100um , the silane coupling agent is A-172.

[0085] Above-mentioned a kind of preparation method of solid silicon rubber for high hardness rubber roller not containing white carbon black comprises the following steps:

[0086] S1. Mix methyl vinyl silicone rubber raw rubber, polysilsesquioxane and A-172 into a mass in a kneader, and control the temperature system to 100°C;

[0087] S2, heat up to 160°C in the kneader, heat treatment for 2h;

[0088] S3. Cool the product of step S2...

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Abstract

The invention discloses white-carbon-black-free solid silicone rubber for a high-hardness rubber roller, and a preparation method of the solid silicone rubber, and relates to the technical field of rubber roller silicone rubbers. The silicone rubber comprises methyl vinyl silicone rubber raw rubber, polysilsesquioxane, diatomite, a silane coupling agent and a non-white-carbon-black auxiliary agent. The preparation method comprises the following steps: mixing methyl vinyl silicone rubber raw rubber, polysilsesquioxane and a silane coupling agent into a ball; then carrying out heating vulcanization treatment; and cooling to below 90 DEG C, and adding diatomite and non-white-carbon-black auxiliary agent to obtain the silicon rubber. The rubber roller silicone rubber produced by the inventionhas the advantages of low abrasion value, standard hardness and rebound resilience, low surface viscosity and good stripping performance between the rubber roller silicone rubber and a plastic film.

Description

technical field [0001] The invention relates to the technical field of silicone rubber rollers, more specifically, it relates to a solid silicone rubber for high-hardness rubber rollers without white carbon black and a preparation method thereof. Background technique [0002] Silicone rubber rollers have good properties such as high temperature resistance, high pressure resistance, good insulation and high resilience, and are widely used in various material manufacturing fields. Among them, in the plastic film production industry, there are high requirements for the peeling performance between the silicone rubber roller and the film, so that the plastic film and the rubber roller can be separated normally to ensure the normal production of the plastic film. [0003] Related technologies, such as Chinese Invention Patent Application Publication No. CN110218455A disclose a low compression set cot silicone rubber and a preparation method thereof. The components include: 100 par...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/08C08L27/18C08K7/26C08K5/544C08K5/5435C08K5/5425
CPCC08L83/04C08L2205/02C08L2205/03C08L83/08C08L27/18C08K7/26C08K5/544C08K5/5435C08K5/5425
Inventor 黄冰林李甫生
Owner 福建固泰有机硅材料有限公司
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