氯醚橡胶/超细全硫化粉末硅橡胶共混物的结构与性能

采用熔融共混工艺制备氯醚橡胶（ECO）/超细全硫化粉末硅橡胶（UFPSiR）共混物，并对共混物的相态结构与性能进行研究。结果表明，UFPSiR在ECO中的分散性较差，粒径为微米级；UFPSiR与ECO的相容性不好，ECO/UFPSiR共混物的物理性能与ECO/硅橡胶共混物差别不大，但耐热氧老化性能较好，加入少量UFPSiR能够显著减小共混物的压缩永久变形。;The epichlorohydrin rubber(ECO)/ultra-fine full-vulcanized powdered silicone rubber(UFPSiR) blends were prepared by melt blending，and their morphology and properties were investigated.The results showed that UFPSiR dispersed poorly in the ECO matrix on micron-scale； the compatibility between ECO and UFPSiR was poor；the physical properties of ECO/UFPSiR were similar to those of ECO/silicone rubber blends，but its heat aging resistance was better；and the compression set decreased significantly by adding small amount of UFPSiR into ECO compound