Self-lubricating silicone rubber and preparation method thereof
A silicone rubber and self-lubricating technology, which is applied in the field of self-lubricating silicone rubber and its preparation, can solve the problems that silicone rubber cannot be used as a dynamic sealing material, and the surface friction of silicone rubber is large, so as to avoid detonation and reduce moisture content , control the effect of appearance particles
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Embodiment 1
[0024] A self-lubricating silicone rubber, comprising the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 20 parts of fumed silica, 3 parts of vinyl hydroxy silicone oil, 0.15 parts of zinc stearate, diphenyl silicone oil 20 parts, calcium oxide 7 parts.
[0025] A preparation method of self-lubricating silicone rubber, comprising the steps of:
[0026] (1) Weigh each component by formula;
[0027] (2) Put the methyl vinyl silicone rubber into the kneader and knead it;
[0028] (3) Add fumed silica into the kneader in batches and mix and knead with methyl vinyl silicone rubber. During this process, add vinyl hydroxy silicone oil, zinc stearate, diphenyl silicone oil and calcium oxide, mix well and then heat up 160°C, continue kneading for 2 hours after forming a dough;
[0029] (4) cooling and filtering the product obtained in step (3) to obtain the self-lubricating silicone rubber.
[0030] A self-lubricating silicone rubber, comprising...
Embodiment 3
[0037] A self-lubricating silicone rubber, comprising the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 10 parts of fumed silica, 1 part of vinyl hydroxy silicone oil, 0.12 parts of zinc stearate, diphenyl silicone oil 10 parts, calcium oxide 2 parts.
[0038] A preparation method of self-lubricating silicone rubber, comprising the steps of:
[0039] (1) Weigh each component by formula;
[0040] (2) Put the methyl vinyl silicone rubber into the kneader and knead it;
[0041] (3) Add fumed silica into the kneader in batches and mix and knead with methyl vinyl silicone rubber. During this process, add vinyl hydroxy silicone oil, zinc stearate, diphenyl silicone oil and calcium oxide, mix well and then heat up 140°C, continue kneading for 1 hour after forming a dough;
[0042] (4) cooling and filtering the product obtained in step (3) to obtain the self-lubricating silicone rubber.
Embodiment 4
[0044] A self-lubricating silicone rubber, comprising the following components in parts by weight: 100 parts of methyl vinyl silicone rubber, 25 parts of fumed silica, 2 parts of vinyl hydroxy silicone oil, 0.14 parts of zinc stearate, diphenyl silicone oil 12 parts, calcium oxide 6 parts.
[0045] A preparation method of self-lubricating silicone rubber, comprising the steps of:
[0046] (1) Weigh each component by formula;
[0047] (2) Put the methyl vinyl silicone rubber into the kneader and knead it;
[0048] (3) Add fumed silica into the kneader in batches and mix and knead with methyl vinyl silicone rubber. During this process, add vinyl hydroxy silicone oil, zinc stearate, diphenyl silicone oil and calcium oxide, mix well and then heat up 145°C, continue kneading for 1.5 hours after forming a dough;
[0049] (4) cooling and filtering the product obtained in step (3) to obtain the self-lubricating silicone rubber.
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