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Flame-retardant heat-resisting silicone rubber and preparation method thereof

A silicone rubber and heat-resistant technology, which is applied in the field of flame-retardant and heat-resistant silicone rubber and its preparation, can solve the problems that the high-temperature resistance and flame-retardant performance of the silicone rubber cannot meet the requirements, and achieve good high-temperature resistance and good flame retardancy. performance effect

Inactive Publication Date: 2017-12-26
JIANGSU TIANCHEN NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if it is applied in a special environment, such as a high-temperature environment, the high-temperature resistance and flame-retardant properties of silicone rubber cannot meet the requirements. Therefore, it is of great significance to study high-temperature-resistant and flame-retardant silicone rubber.

Method used

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  • Flame-retardant heat-resisting silicone rubber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The manufacture method of the flame-retardant and heat-resistant silicone rubber of the present embodiment comprises the following steps:

[0025] a. Add methyl vinyl raw rubber with a vinyl molar content of 0.12% into the kneader and stir for 2 minutes;

[0026] b. Add white carbon black, stearic acid 1801, dimethyldimethoxysilane and hydroxyl silicone oil several times, and stir thoroughly after each addition to obtain a silicone rubber compound;

[0027] c. After kneading and forming, heat up to 140°C, vacuumize, pass cooling water to cool down to 70°C, and glue out;

[0028] d. Add decabromodiphenylethane, cerium oxide, zinc oxide and vinyltrimethoxysilane in batches to the mixed silicone rubber, raise the temperature to 110°C, vacuumize, and release the glue;

[0029] e. Cool to room temperature after the glue is released to obtain the product.

[0030] After the product is made, a vulcanizing agent can be added to vulcanize during use, vulcanized at 160 degrees ...

Embodiment 2

[0042] The manufacture method of the flame-retardant and heat-resistant silicone rubber of the present embodiment comprises the following steps:

[0043] a. Add methyl vinyl raw rubber with a vinyl molar content of 0.12% into the kneader and stir for 3 minutes;

[0044] b. Add white carbon black, stearic acid 1801, dimethyldimethoxysilane and hydroxyl silicone oil several times, and stir thoroughly after each addition to obtain a silicone rubber compound;

[0045] c. After kneading and molding, heat up to 150°C, vacuumize, pass cooling water to cool down to 80°C, and glue out;

[0046] d. Add decabromodiphenylethane, cerium oxide, zinc oxide and vinyltrimethoxysilane in batches to the mixed silicone rubber, heat up to 120°C, vacuumize, and glue out;

[0047] e. Cool to room temperature after the glue is released to obtain the product.

[0048] After the product is made, vulcanizing agent can be added to vulcanize during use, vulcanized at 170 degrees Celsius for 4 minutes, a...

Embodiment 3

[0062] The manufacture method of the flame-retardant and heat-resistant silicone rubber of the present embodiment comprises the following steps:

[0063] a. Add methyl vinyl raw rubber with a vinyl molar content of 0.12% into the kneader and stir for 2 minutes;

[0064] b. Add white carbon black, stearic acid 1801, dimethyldimethoxysilane and hydroxyl silicone oil several times, and stir thoroughly after each addition to obtain a silicone rubber compound;

[0065] c. After kneading and molding, heat up to 160°C, vacuumize, pass cooling water to cool down to 90°C, and glue out;

[0066] d. Add decabromodiphenylethane, cerium oxide, zinc oxide and vinyltrimethoxysilane in batches to the mixing silicone rubber, raise the temperature to 130°C, vacuumize, and release the glue;

[0067] e. Cool to room temperature after the glue is released to obtain the product.

[0068] After the product is made, vulcanizing agent can be added to vulcanize during use, vulcanized at 180 degrees C...

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Abstract

The invention discloses the manufacture of a silicone rubber material, and particularly discloses flame-retardant heat-resisting silicone rubber and a preparation method thereof. The flame-retardant heat-resisting silicone rubber is prepared from the following raw materials in parts by weight: 100 parts of raw rubber with the vinyl molar content of 0.12%, 30 to 50 parts of fumed silica, 3 to 6 parts of dimethoxydimethylsilane, 3 to 6 parts of hydroxyl silicone oil, 0.2 to 0.6 part of vinyl trimethoxy silane, 0.2 to 0.4 part of stearic acid 1801, 1 to 10 parts of zinc oxide, 20 to 30 parts of decabromodiphenyl ethane and 1 to 2 parts of cerium oxide. After adopting the formula and the method, raw materials are reasonably selected and matched, a special preparation method is used and the parameters are strictly controlled in a preparation process, so that a prepared product has good flame retardant property after being detected practically, meanwhile, has better high temperature resistance, hardness, strength and processability, and fully meets the use requirement of a high-temperature-resistant flame-retardant cable.

Description

technical field [0001] The invention relates to the manufacture of a silicone rubber material, in particular to a flame-retardant and heat-resistant silicone rubber and a preparation method thereof. Background technique [0002] Silicone rubber has many excellent properties such as good high and low temperature resistance, ozone resistance, weather resistance, insulation and production inertia, and is widely used in various fields of the national economy. Silicone rubber filled with fumed silica has good electrical insulation properties and its excellent processing and forming properties determine that it can be used as a cable. However, if it is applied in a special environment, such as a high-temperature environment, the high-temperature resistance and flame-retardant properties of silicone rubber cannot meet the requirements. Therefore, it is of great significance to study high-temperature-resistant and flame-retardant silicone rubber. Contents of the invention [0003...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08L83/06C08K13/02C08K3/36C08K5/5419C08K5/5425C08K5/09C08K3/22C08K5/03
CPCC08K2003/2213C08K2003/2296C08L83/04C08L2201/02C08L2201/08C08L2203/20C08L83/06C08K13/02C08K3/36C08K5/5419C08K5/5425C08K5/09C08K3/22C08K5/03
Inventor 施贤斌徐文俊宋顺刚
Owner JIANGSU TIANCHEN NEW MATERIALS
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