Method of preparing low-temperature-cure polymer composition

摘要

A method of preparing a composition containing a fluorocarbon thermoplastic random copolymer comprising the steps of: (A) providing a mixture having: (i) a fluorocarbon thermoplastic random copolymer having subunits of: -(CH2 CF2)x-, -(CF2CF(CF3)y-, and -(CF2 CF2)z-, wherein x is from 1 to 50 or 60 to 80 mole percent, y is from 10 to 90 mole percent, z is from 10 to 90 mole percent, x + y + z equals 100 mole percent; (ii) a filler comprising zinc oxide; (iii) a curable amino functional polydimethyl siloxane copolymer comprising aminofunctional units selected from the group consisting of (aminoethylaminopropyl) methyl, (aminopropyl) methyl and (aminopropyl) dimethyl; and (iv) antimony-doped tin oxide particles; (v) a bisphenol residue curing agent; and (B) curing the mixture for 5 to 10 hours at a temperature in the range of 25 DEG C to 275 DEG C.