Oxygen plasma-resistant composition characterized by low sticking, and related methods
申请人:Campbell Ronald R.
公开号:US10023722B2
公开(公告)日:2018-07-17
The invention provides a curable fluoroelastomeric composition comprising: (i) a fluoropolymer comprising at least one cure site monomer that comprises at least one cyano group; (ii) a cure system comprising a functionalized biphenyl-based compound and at least one of: a dioxime compound represented by the formula (I): HON═R1═NOH
wherein R1 is chosen from an alkyl group having 1 to 10 carbon atoms and an aryl group having 1 to 10 carbon atoms; a monoamidine-based compound represented by formula (IV):
wherein Y is chosen from a substituted or unsubstituted alkyl, aryl, or aralkyl group or an unsubstituted or substituted fully or partially halogenated alkyl, aryl, or aralkyl group having to 22 carbon atoms; R4 is chosen from a hydrogen atom or a substituted or unsubstituted lower alkyl group of 1 to 6 carbon atoms, or an amino group; R5 is independently chosen from hydrogen atom, a substituted or unsubstituted lower alkyl group of 1 to 6 carbon atoms, an amino group or an hydroxyl group; and/or a perfluoropolyether. Also included are additional related compositions and methods.
本发明提供了一种可固化的氟橡胶组合物,该组合物包括:(i) 含有至少一个固化位点单体的含氟聚合物,该单体含有至少一个氰基;(ii) 固化体系,该固化体系包括官能化联苯基化合物和以下至少一种化合物:由式 (I) 代表的二恶肟化合物:HON═R1═NOH
其中 R1 选自具有 1 至 10 个碳原子的烷基和具有 1 至 10 个碳原子的芳基; 由式 (IV) 表示的单脒基化合物:
其中,Y 选自取代或未取代的烷基、芳基或芳烷基,或未取代或取代的具有至 22 个碳原子的完全或部分卤代的烷基、芳基或芳烷基;R4 选自氢原子或具有 1 至 6 个碳原子的取代或未取代的低级烷基,或氨基;R5 独立选自氢原子、具有 1 至 6 个碳原子的取代或未取代的低级烷基、氨基或羟基;和/或全氟聚醚。此外,还包括其他相关的组合物和方法。