| 摘要 |
PURPOSE:The titled composition showing excellent dielectric properties in the high-frequency region and providing easy sealing, comprising a reactive vinyl monomer, 1,2-polybutadiene, a reaction initiator, and amorphous quartz glass powder. CONSTITUTION:100pts.wt. (A) 1,2-polybutadiene is mixed with about 5-30mol%, based on component A, reactive vinyl monomer (e.g., styrene), about 1-2pts.wt. reaction initiator (organic peroxide, e.g., t-butyl perbenzoate), about 200pts.wt. amorphous quartz glass powder and, optionally, about 0.01-1pt.wt. reaction accelerator (e.g., cobalt naphthenate). The moisture resistance can be improved when said glass powder is surface-treated with a silane coupling agent (e.g., gamma-methacryloxypropyl-trimethoxysilane).
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