The present invention relates to a crosslinking agent for use in vulcanising a vulcanisable polysiloxane to form a silicone elastomer. The crosslinking agent comprises a silane in which at least one oxygen-bonded substituent is selected from functionalised or unfunctionalised, substituted or unsubstituted, straight or branched chain C
5-25
alkyl, alkenyl or alkynyl; substituted or unsubstituted aryl; or substituted or unsubstituted acyl, in which the moiety bonded to the carboxyl group is a functionalised or unfunctionalised, substituted or unsubstituted, straight or branched chain C
4-25
alkyl, alkenyl or alkynyl; or substituted or unsubstituted aryl.
Silicone elastomers formed using such crosslinking agent(s) possess inherent lubricity.
本发明涉及一种用于交联可
硫化聚
硅氧烷形成
硅弹性体的
交联剂。该
交联剂包括一种
硅烷,其中至少一个氧键合取代基被选择为官能化或未官能化、取代或未取代、直链或支链的C5-25烷基、烯基或炔基;取代或未取代的芳基;或取代或未取代的酰基,其中与羧基键合的基团是官能化或未官能化、取代或未取代、直链或支链的C4-25烷基、烯基或炔基;或取代或未取代的芳基。使用这种
交联剂形成的
硅弹性体具有固有的润滑性。