【摘要】 研究了相容剂及其用量和加工工艺对EPDM /三元共聚尼龙 (PA)共混体系物理性能的影响。结果表明 ,氯化聚乙烯 (CPE)是EPDM/PA共混体系性能优良且价廉易得的相容剂 ;CPE的最佳用量为PA的 1/2。SEM照片显示 ,EPDM与PA相容性差 ;二元体系EPDM/PA加入CPE后 ,分散相PA/CPE分散均匀 ,粒径细小。共混温度控制在 (16 0± 5 )℃为宜 ,PA与CPE共混时间控制在 15min为宜 ,EPDM与CPE/PA的混炼时间控制在 8min为宜。还考察了加料顺序对共混物性能的影响更多还原

【Abstract】 The influence of the kind and level of compatibilizer and the blending technology on the physical properties of EPDM/PA blend was investigated.The results showed that CPE was a suitable and cheap compatibilizer for EPDM/PA blend;and its optimal content is 50% by weight of PA.It was found on SEM that the compatibility between EPDM and PA was poor;and the uniform dispersion and small particles were obtained in the dispersive PA/CPE phase by adding CPE into EPDM/PA blend.It was suitable to blend at (160±5) ℃,15 min for PA/CPE and 8 min for EPDM with PA/CPE respectively.The influence of the loading order on the properties of blend was also studied.更多还原