Compared with diolefine rubber, EPDM has less double bond. 与二烯烃橡胶相比,EPDM的双键很少。
When making a mass balance around a single fiber and using reaction rate determined by experiment, two discriminants to judge whether the film diffusion resistance for either diolefine or hydrogen is significant are derived. 通过对一根纤维作质量衡算,并应用实验测定的反应速度,分别导得双烯及氢的膜扩散是否能对反应构成显著阻力的判别式。