High-resilience silicone rubber and preparation method thereof
A silicone rubber, high resilience technology, applied in the field of silicone rubber, can solve the problems of low resilience, low mechanical strength, limitations, etc., and achieve the effect of reducing vulcanization temperature, high mechanical strength, and reducing dosage
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Embodiment 1
[0042] A kind of high resilience silicon rubber, comprises the raw material of following weight part:
[0043]
[0044] The composite silicone rubber is a mixture of methyl vinyl silicone rubber A and methyl vinyl silicone rubber B in a weight ratio of 30:70; wherein, the vinyl content of the methyl vinyl silicone rubber A is 0.20 %, the methyl content is 99.80%, and the molecular weight is 650,000; the vinyl content of the methyl vinyl silicone rubber B is 0.14%, the methyl content is 99.86%, and the molecular weight is 800,000.
[0045] The chemical formulas of the above-mentioned methyl vinyl silicone rubber A and methyl vinyl silicone rubber B are as follows:
[0046]
[0047] Wherein, n=8850, m=20 of the methyl vinyl silicone rubber A; n=11500, m=15 of the methyl vinyl silicone rubber B.
[0048] The reinforcing agent has a specific surface area of 140m 2 / g of precipitated silica.
[0049] The silane coupling agent is propyltrimethoxysilane.
[0050] The rele...
Embodiment 2
[0063] A kind of high resilience silicon rubber, comprises the raw material of following weight part:
[0064]
[0065]
[0066] The composite silicone rubber is a mixture of methyl vinyl silicone rubber A and methyl vinyl silicone rubber B in a weight ratio of 50:50; wherein, the vinyl content of the methyl vinyl silicone rubber A is 0.23 %, the methyl content is 99.77%, and the molecular weight is 700,000; the vinyl content of the methyl vinyl silicone rubber B is 0.16%, the methyl content is 99.84%, and the molecular weight is 850,000.
[0067] The chemical formulas of the above-mentioned methyl vinyl silicone rubber A and methyl vinyl silicone rubber B are as follows:
[0068]
[0069] Wherein, n=8800, m=22 of the methyl vinyl silicone rubber A; n=11470, m=18 of the methyl vinyl silicone rubber B.
[0070] The reinforcing agent has a specific surface area of 150m 2 / g of precipitated silica.
[0071] The silane coupling agent is vinyltrimethoxysilane.
[007...
Embodiment 3
[0085] A kind of high resilience silicon rubber, comprises the raw material of following weight part:
[0086]
[0087] The composite silicone rubber is a mixture of methyl vinyl silicone rubber A and methyl vinyl silicone rubber B in a weight ratio of 40:60; wherein, the vinyl content of the methyl vinyl silicone rubber A is 0.25 %, the methyl content is 99.75%, and the molecular weight is 750,000; the vinyl content of the methyl vinyl silicone rubber B is 0.18%, the methyl content is 99.82%, and the molecular weight is 900,000.
[0088] The chemical formulas of the above-mentioned methyl vinyl silicone rubber A and methyl vinyl silicone rubber B are as follows:
[0089]
[0090] Wherein, n=8750, m=25 of the methyl vinyl silicone rubber A; n=11450, m=20 of the methyl vinyl silicone rubber B.
[0091] The reinforcing agent has a specific surface area of 170m 2 / g of precipitated silica.
[0092] The silane coupling agent is vinyltriethoxysilane.
[0093] The releas...
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