The present invention provides an acrylic rubber composition and its vulcanized product, having good vulcanization characteristics and an excellent balance between processability, mechanical properties of rubber and compression set.
The acrylic rubber composition comprises a carboxyl group-containing acrylic rubber, a diazabicycloalkene compound, a polyamine compound, and a tertiary amine compound represented by the following formula (1):
where each of R1, R2 and R3 is independently a substituent having at least one saturated aliphatic hydrocarbon or unsaturated aliphatic hydrocarbon having a linear structure, a branched structure or a cyclic structure, or benzyl group.
本发明提供了一种
丙烯酸橡胶组合物及其
硫化产品,该组合物具有良好的
硫化特性,并在加工性、橡胶机械特性和压缩永久变形之间实现了极佳的平衡。
该
丙烯酸橡胶组合物包括一种含羧基的
丙烯酸橡胶、一种重
氮双环
烯化合物、一种
多胺化合物和一种叔胺化合物,由下式(1)表示:
其中 R1、R2 和 R3 中的每一个都是独立的取代基,该取代基至少具有一个饱和
脂肪族烃或不饱和
脂肪族烃的线性结构、支链结构或环状结构,或
苄基。