Preparation method of anti-poisoning silicon rubber
A silicone rubber and anti-poisoning technology, which is applied in the field of preparation of anti-poisoning silicone rubber, and can solve the problems that silicone rubber cannot be vulcanized and catalysts are easily poisoned.
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[0017] Example 1
[0018] Mix 50 parts of vinyl silicone oil with a viscosity of 2000mPa·s and 30 parts of calcium carbonate in a planetary mixer, dehydrate at a vacuum of 40KPa, heat up to 150°C, stir for 300min, and cool down to 50°C, add 14.9 parts of White carbon black, stirring for 80 minutes, add 3 parts of carbon black, add 0.1 part of high-activity catalyst, and add 2 parts of antipoisoning agent. Stir uniformly, cool to room temperature, and degas under 40KPa vacuum for 40min to obtain component A;
[0019] Mix 50 parts of vinyl silicone oil with a viscosity of 2000mPa·s with 45 parts of calcium carbonate, heat up to 150°C, stir for 300min, and cool down to 50°C, add 5 parts of hydrogen-containing silicone oil, and stir evenly at a vacuum of 40KPa. Obtain component B, mix A and B components evenly at room temperature 1:1 to obtain anti-poisoning silicone rubber. The product parameters of the obtained silicone rubber are as follows, surface drying time (relative humidity 5...
Example Embodiment
[0020] Example 2
[0021] Mix 50 parts of vinyl silicone oil with a viscosity of 2000mPa·s and 30 parts of MgO in a planetary mixer, dehydrate at a vacuum of 40KPa, heat up to 150°C, stir for 300min, and cool down to 50°C, add 14.8 parts of white For carbon black, stir for 80 minutes, add 3 parts of carbon black, add 0.2 parts of highly active catalyst, and add 2 parts of antipoisoning agent. Stir uniformly, cool to room temperature, and degas under 40KPa vacuum for 40min to obtain component A;
[0022] Mix 50 parts of vinyl silicone oil with a viscosity of 2000mPa·s with 45 parts of MgO, heat up to 150°C, stir for 300min, and cool down to 50°C, add 5 parts of hydrogen-containing silicone oil, and stir evenly at a vacuum of 40KPa. Component B: Mix components A and B uniformly at room temperature 1:1 to obtain anti-poisoning silicone rubber. The product parameters of the obtained silicone rubber are as follows, flame retardant grade UL94-V0, surface dry time (relative humidity 50 ...
Example Embodiment
[0023] Example 3
[0024] Mix 50 parts of vinyl silicone oil with a viscosity of 2000mPa·s and 20 parts of α-Al 2 O 3 Mix well in a planetary mixer, add 10 parts of AlN, stir evenly, dehydrate at a vacuum of 40KPa, heat up to 150℃, stir for 300min, and cool down to 50℃, add 14.9 parts of white carbon black, stir for 80min, add 3 parts of carbon For black, add 0.1 part of high activity catalyst and 2 parts of antipoisoning agent. Stir uniformly, cool to room temperature, and degas under 40KPa vacuum for 40min to obtain component A;
[0025] Mix 50 parts of vinyl silicone oil with a viscosity of 2000mPa·s and 25 parts of α-Al 2 O 3 Mix well, continue to add 10 parts of AlN and 10 parts of white carbon black, stir evenly, heat up to 150°C, stir for 300min, and cool down to 50°C, add 5 parts of hydrogen-containing silicone oil, and stir evenly at a vacuum of 40KPa to obtain component B. Mix components A and B uniformly at room temperature 1:1 to obtain anti-poisoning silicone rubber. ...
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