【摘要】 <正> 三元乙丙橡胶(EPDM)具有突出的耐老化性,耐臭氧性,耐酸碱性等。并且原料易得,价格便宜,是一种颇有发展前途的橡胶。得到加工应用方面的密切注视,然而EPDM不足之处是粘性差,强度低,硫化慢,因此其应用范围受到了极大限制,为了改善其加工性能和机械性能,常常与氯丁胶(CR)共混,但是由结构差异,共混性能低劣。更多还原

【Abstract】 The microstructure of EPDM-CR polyblends was investigated with electron and phase-contrast microscope. It was shown that the relative affinity of EPDM and CR for carbon blacks is different.By Comparing the structure of network domains, we found that carbon black displacement can occur in EPDM-CR polyblends systems. Structure of non-homogeneity domains is dependent upon the blending method and the carbon black content.更多还原