Adhesive for silicone mica tape and preparation method of adhesive
A silicone rubber, silicone technology, applied in the direction of adhesives, coatings, etc., can solve the problems of inability to undergo cross-linking and curing, unfavorable electrical insulation performance of motors, and reduce the final performance of silicone-less tapes, and achieve good chemical compatibility. properties, high viscosity, and the effect of improving insulation performance
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Embodiment 1
[0024] An adhesive for silicone-less adhesive tape of the present invention is prepared by dehydration polycondensation of phenyl vinyl silicone rubber and vinyl MQ silicone resin with a mass ratio of 10:11 under the action of dibutyltin dilaurate.
[0025] In phenyl vinyl silicone rubber, the molar ratio of methyl, phenyl, vinyl is 100:20:3, and the dynamic viscosity of phenyl vinyl silicone rubber is 8×10 4 cP.
[0026] The general molecular structure formula of phenyl vinyl silicone rubber in this embodiment is:
[0027]
[0028] Among them, a, b, and c are all positive integers.
[0029] In vinyl MQ silicone resin, the molar ratio of M / Q is 0.7:1, and the molar ratio of methyl to vinyl is 100:7.
[0030] A kind of preparation method of the silicone few adhesive tape adhesive of above-mentioned present embodiment, comprises the following steps:
[0031] 100g of phenylvinyl silicone rubber is completely dissolved in 40g of toluene, the molar ratio of methyl, phenyl, vi...
Embodiment 2
[0043] An adhesive for silicone-less adhesive tape of the present invention is prepared by dehydration polycondensation of phenylvinyl silicone rubber and vinyl MQ silicone resin with a mass ratio of 10:10 under the action of a catalyst dibutyltin dilaurate.
[0044] In phenyl vinyl silicone rubber, the molar ratio of methyl, phenyl and vinyl is 100:33:7, and the dynamic viscosity of phenyl vinyl silicone rubber is 8.5×10 4 cP.
[0045] The general molecular structure formula of phenyl vinyl silicone rubber in this embodiment is:
[0046]
[0047] Among them, a, b, and c are all positive integers.
[0048]In vinyl MQ silicone resin, the molar ratio of M / Q is 0.8:1, and the molar ratio of methyl to vinyl is 100:6.
[0049] A kind of preparation method of the silicone few adhesive tape adhesive of above-mentioned present embodiment, comprises the following steps:
[0050] 100g of phenylvinyl silicone rubber is completely dissolved in 80g of toluene, the molar ratio of meth...
Embodiment 3
[0052] An adhesive for silicone-less adhesive tape of the present invention is prepared by dehydration polycondensation of phenylvinyl silicone rubber and vinyl MQ silicone resin with a mass ratio of 10:9 under the action of a catalyst dibutyltin dilaurate.
[0053] In phenylvinyl silicone rubber, the molar ratio of methyl, phenyl, and vinyl is 100:10:6, and the dynamic viscosity of phenylvinyl silicone rubber is 6.8×10 4 cP.
[0054] The general molecular structure formula of phenyl vinyl silicone rubber in this embodiment is:
[0055]
[0056] Among them, a, b, and c are all positive integers.
[0057] In vinyl MQ silicone resin, the molar ratio of M / Q is 0.85:1, and the molar ratio of methyl to vinyl is 100:7.
[0058] A kind of preparation method of the silicone few adhesive tape adhesive of above-mentioned present embodiment, comprises the following steps:
[0059] 100g of phenyl vinyl silicone rubber is completely dissolved in 80g of toluene, the molar ratio of met...
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Abstract
Description
Claims
Application Information

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