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
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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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