Insulating silicone rubber, semiconductive silicone rubber, a cable head casing pipe and a preparing method
A technology of raw silicone rubber and insulating silicon, applied in the field of silicone rubber, can solve the problems of poor cable contact and easy combustion, and achieve the effects of good molding performance, good flame retardancy, and reduced production costs.
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[0048] Example 1
[0049] The embodiment of the present invention provides an insulating silicone rubber, and the raw material of the insulating silicone rubber includes in parts by mass:
[0050] 100 parts of raw silicone rubber, 20 parts of modified white carbon black, 8 parts of structure control agent, 40 parts of glass powder, 30 parts of porcelain powder, 40 parts of flame retardant, 1.5 parts of vulcanizing agent.
[0051] The embodiment of the present invention provides a method for preparing insulating silicone rubber, which specifically includes:
[0052] S111: Put the methyl silicone rubber raw rubber into a kneader for 5 minutes.
[0053] S112: After the mastication of the raw methyl silicone rubber is completed, the fumed white carbon black modified by the silane coupling agent and the hydroxy silicone oil are added to the raw methyl silicone rubber after the mastication, and the temperature in the kneader is 60 Mix for 15 minutes at ℃ to form a masterbatch;
[0054] S113: ...
Example Embodiment
[0070] Example 2
[0071] The embodiment of the present invention provides an insulating silicone rubber, and the raw material of the insulating silicone rubber includes in parts by mass:
[0072] 100 parts of raw silicone rubber, 18 parts of modified white carbon black, 7 parts of structure control agent, 20 parts of glass powder, 5 parts of porcelain powder, 10 parts of flame retardant, 1.5 parts of vulcanizing agent.
[0073] The embodiment of the present invention provides a method for preparing insulating silicone rubber, and the preparation steps of the method are the same as those in Example 1. Among them, the modified white carbon black is a precipitation method white carbon black modified by a silane coupling agent, the structure control agent is hydroxy silicone oil and hexamethyldisilazane, the glass powder is bismuth oxide glass powder, and the porcelain powder is silica fume. The flame retardant is magnesium hydroxide and chloroplatinic acid, and the vulcanizing agent i...
Example Embodiment
[0078] Example 3
[0079] The embodiment of the present invention provides an insulating silicone rubber, and the raw material of the insulating silicone rubber includes in parts by mass:
[0080] 100 parts of raw silicone rubber, 30 parts of modified white carbon black, 10 parts of structure control agent, 50 parts of glass powder, 25 parts of porcelain powder, 40 parts of flame retardant, 2 parts of vulcanizing agent.
[0081] The embodiment of the present invention provides a method for preparing insulating silicone rubber, which specifically includes:
[0082] S311: Put the methyl vinyl silicone rubber raw rubber into a kneader for 10 minutes.
[0083] S312: After the mastication of the raw methyl vinyl silicone rubber is completed, add the precipitation white carbon black modified by the titanate coupling agent and hexamethyl disilazane to the masticated methyl vinyl silicone rubber In the raw rubber, mix for 10 minutes at a temperature of 80°C in a kneader to form a masterbatch; ...
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