文献类型：期刊文献

英文题名：The relationship between rheological Behavior and toughening mechanism of toughened poly(ethylene terephthalate)

作者：Zong, Yuan[1];Cheng, Yongfeng[1];Dai, Gance[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2008

卷号：42

期号：16

起止页码：1571

外文期刊名：JOURNAL OF COMPOSITE MATERIALS

收录：;EI(收录号：20083111418951);WOS:【SCI-EXPANDED(收录号:WOS:000257985400001)】；

语种：英文

外文关键词：poly(ethylene terephthalate); compatibilizer; toughness; rheology

摘要：Mechanical properties, morphology, and rheological behavior of poly(ethylene terephthalate) (PET) with different compatible agents were studied. The results showed that the addition of ethylene-butylacrylate-glycidyl methacrylate copolymer (PTW) significantly improved the impact-strength property of PET over maleic anhydride grafted polyethylene octene elastomer copolymer (POE-g-MA), whereas silane coupling agent KH570 grafted polyethylene octane elastomer (POE-g-KH570) had no obvious contribution to the toughness of PET. Scanning electron microscopy micrographs indicated that the size of POE-g-MA and PTW particles were smaller that that of POE-g-KH570 and dispersed uniformly due to their interaction with PET. The rheological tests revealed the viscoelastic properties of PET/PTW and PET/POE-g-MA were different from that of PET/POE-g-KH570 ascribed to the high elastic of the compatibilizers and the finely dispersed particle. And it explained that the toughening mechanism of PET toughened system was mostly due to shear yielding.