We had been made silicon-based leaving agent of paper from 3-aminopropyltriethoxysilane and trichlorophenylsilane in the solvent of toluene that has been used catalyst reaction by dibutyltindilaulate. And also, the heated polymer stabilized about -50~250 ℃ and the insulated polymer resisted upto 7000 volt/min. New silicon-based leaving agent of paper determined to do 12% on the basis of elastic limit.