A kind of butyl rubber heat insulation pad material and preparation method thereof
A technology of butyl rubber and thermal insulation pad, applied in the field of thermal insulation pad, can solve the problems of high irritating smell, poor thermal insulation performance, poor vibration damping performance of sound insulation pad, etc.
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[0027] The present invention also provides a preparation method of butyl rubber heat insulation pad material, comprising:
[0028] Step 1: adding 10-13 parts by weight of butyl rubber and 0.1-0.3 parts by weight of peptizer into an internal mixer for mixing, and reacting at 100-130° C. for 20-30 minutes to obtain masticated rubber;
[0029] Step 2: Add 0.1-0.3 parts by weight of anti-aging agent to the plasticized rubber obtained in Step 1, react at 80-90°C for 5-10 minutes, then add 2-3 parts by weight of polyisobutylene to react for 5-10 minutes, then add 7-9 parts by weight of carbon black, 5-7 parts by weight of heavy calcium powder, 15-17 parts by weight of talcum powder, 0.1-0.3 parts by weight of plasticizer, stirring for 5-8min, adding 7-10 parts by weight of rubber oil, and reacting 5 -10min, obtain the sizing material mixture;
[0030] Step 3: Add 8-9 parts by weight of carbon black, 5-8 parts by weight of heavy calcium powder, and 15-18 parts by weight of talcum po...
Embodiment 1
[0035] Step 1: Add 10 parts by weight of butyl rubber 1751 and 0.1 parts by weight of AT-S to an internal mixer and mix them, and react at 100°C for 30 minutes to obtain masticated rubber;
[0036] Step 2: Add 0.1 parts by weight of 4,4'-bis-a,a'-dimethylbenzyl diphenylamine to the mastic rubber obtained in Step 1, react at 80°C for 5 minutes, and then add 2 parts by weight of polyisobutylene (The data molecular weight is 1000) reaction 5min, then add 7 parts by weight of carbon black, 5 parts by weight of heavy calcium powder, 15 parts by weight of talcum powder, 0.1 parts by weight of AT-E-II, stir for 5 minutes, add 7 parts by weight of paraffin oil, and react 10min, obtain the sizing material mixture;
[0037] Step 3: Add 8 parts by weight of carbon black, 5 parts by weight of heavy calcium powder, and 15 parts by weight of talcum powder into the rubber mixture obtained in step 2, react for 5 minutes, then add the remaining 8 parts by weight of paraffin oil, and react for ...
Embodiment 2
[0041] Step 1: Add 13 parts by weight of butyl rubber 1751 and 0.3 parts by weight of AT-S to an internal mixer for mixing, and react at 130°C for 20 minutes to obtain masticated rubber;
[0042] Step 2: Add 0.3 parts by weight of 4,4'-bis-a,a'-dimethylbenzyl diphenylamine to the mastic rubber obtained in Step 1, react at 90°C for 10 minutes, and then add 3 parts by weight of polyisobutylene (The data molecular weight is 3000) reaction 10min, then add 9 parts by weight of carbon black, 7 parts by weight of heavy calcium powder, 17 parts by weight of talcum powder, 0.3 parts by weight of AT-E-II, stir for 8 minutes, add 10 parts by weight of paraffin oil, and react 10min, obtain the sizing material mixture;
[0043] Step 3: Add 9 parts by weight of carbon black, 8 parts by weight of heavy calcium powder, and 18 parts by weight of talcum powder into the rubber mixture obtained in step 2, react for 10 minutes, then add the remaining 10 parts by weight of paraffin oil, and react f...
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