Polyaddition-crosslinkable silicone composition useful as an antifriction varnish for making composite materials includes polyamide and silica powders

摘要

Polyaddition-crosslinkable silicone composition comprises at least two reactive organosilicon compounds (at least one of which is a polyorganosiloxane), a polyaddition catalyst, a (co)polyamide powder comprising rounded particles with a mean diameter of 0.1-200 mum, and silica powder with a mean particle diameter of 0.1 mum or less and a BET surface area above 50 m2/g. Independent claims are also included for: (1) varnishing method comprising applying the above composition as an antifriction varnish onto a substrate optionally coated with silicone elastomer; (2) composite material produced by the varnishing method; (3) manufactured article comprising the composite material.