摘要
研究了丙烯酸接枝聚丙烯(PP-g-AA)作为增容剂对聚丙烯(PP)／环氧化三元乙丙橡胶(eEPDM)共混体系形态和性能的影响。结果表明,在以PP为连续相而eEPDM为分散相时,PP-g-AA的加入大大提高了两相间的相容性,导致eEPDM分散相的细化;PP-g-AA中的羧基与eEPDM中的环氧基团发生了化学反应,形成了接枝共聚物,降低了PP／eEPDM之间的界面张力,起到了很好的界面增容剂的作用,对共混体系韧性的提高非常有利。
The blends of polypropylene （PP） and epoxidized ethylene propylene diene rubber （eEPDM） were compatibilized with acrylic add-grafted polypropylene （PP-g-AA）. The epoxy groups in the eEPDM reacted with PP-g-AA to form a graft eopolymer which reduced the interfadal tension between PP and eEPDM, leading to a fine dispersion of the latter. Thus the impact performance of the system was well improved.
出处
《中国塑料》
CAS
CSCD
北大核心
2006年第3期43-47,共5页
China Plastics
关键词
丙烯酸接枝聚丙烯
环氧化三元乙丙橡胶
聚丙烯
增容剂
acrylic acid-grafted polypropylene
epoxidized ethylene propylene diene rubber
polypropylene
compatibilizer
