The XNBR vulcanizated with sulphur-free vulcanization system, low-sulphur high-accelerant vulcanization system and sulphur/metal oxide vulcanization system had better aging resistance.

• 用无硫硫化体系、低硫高促进剂硫化体系和硫黄／金属氧化物硫化体系所得到的XNBR硫化胶的耐老化性能较好；