NaCl_PEO成核剂对玻纤增强PET力学性能及结晶的影响.pdf

17 12 Vol. 17, No. 12 2003 12 CHINA PLASTICS Dec. , 2003 NaCl/ PEOPET 1 1 2 2 2 郜 奇 , 张隐西 , 张祥福 , 翁永华, 周 文 ( 1. , 200240; 2. , 200092) : (NaCl) / ( PEO) PET , NaCl/ PEO , NaCl/ PEO PET , + NaCl PEO PEO-Na , PET , : ; ; ; : TQ327. 1 : B :2003) Effects of NaCl/ PEOon Crystallization and Mechanical Properties of Glass Fiber Reinforced Polyethylene Terephthalate Composites 1 1 2 GAO Qi , HANG Yin-Xi , HANG Xiang-fu , 2 2 WENG Yong-hua , HOU Wen ( 1. College of Chemistry and Chemical Technology, Shanghai Jiaotong University, Shanghai 200240, China; 2. Shanghai PRET Composites Co. , Ltd. , Shanghai 200092, China) Abstract: Effects of sodium chloride( NaCl) / polyethylene oxide(PEO) on crystallization and mechanical properties of glass fiber reinforced polyethylene terephthalate(PET) composites were studied. Compared with common nucleating agent sodium benzoate, NaCl/ PEO had a better nucleating effect and accelerat- ed the crystallization of PET , and the composites with NaCl/ PEO had higher flexural modulus and bet- ter surface gloss. Working mechanism of NaCl/ PEO on the crystallization of the sysytem was analyzed. + It was supposed that NaCl and PEO might react to create PEO-Na complex at high temperature. The complex can not only reduce the glass transition temperature of PET , but also provide more cores