摘要
以乙烯-丙烯酸共聚物(EAA)为增容剂,研究了它在线性低密度聚乙烯(LLDPE)/聚环氧乙烷(PEO)共混物中的增容作用及其增容机理.采用电子显微镜(SEM)、动态力学分析(DMA)、DSC和红外光谱(IR)对共混物形态及其微观结构进行了表征结果表明,EAA对LLDPE/PEO共混物有一定的增容作用;其增容机理为:EAA和LLDPE两者的非晶区部分相容,而EAA分子中的羧基与PEO分子中的醚氧基相互作用形成了分子间氢键.
The compatibilizing effects of the compatibilizer, ethylene - acrylic acid random copolymer (EAA),on linear low density polyethylene (LLDPE)/poly(ethylene oxide) (PEO) blends and the mechanism of compatibilization of the blends have been studied. Morphology and microstructures as characterized by SEM, DMA, DSC and IR show that EAA can act as an effective compatibilizer, and the mechanism of compatibilization is due to the compatibility of amorphous phases between EAA and LLDPE, and intermolecular interaction between the carboxylic groups in EAA and the ethereal oxygens in PEO.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1998年第5期445-452,共8页
Acta Chimica Sinica
基金
国家自然科学基金(59503002)
中国科学院长春应用化学研究所高分子物理开放实验室基金资助项目
关键词
共混物
增容
聚乙烯
聚环氧乙烷
EAA
LLDPE
PEO
blend, compatibilization, polyethylene, polyethylene oxide, ethylene-acrylic acid copolymer
