Effect of ethylene-acrylate-(maleic anhydride) terpolymer on mechanical properties and morphology of poly(ethylene terephthalate)/polyamide-6 blends

被引：9

作者：

Qu, Cheng ^{[1
]}

Su, Run ^{[1
]}

Zhang, Qin ^{[1
]}

Du, RongNi ^{[1
]}

Fu, Qiang ^{[1
]}

机构：

[1] Sichuan Univ, State Key Lab Polymer Mat Engn, Dept Polymer Sci & Mat, Chengdu 610065, Peoples R China

来源：

POLYMER INTERNATIONAL | 2008年 / 57卷 / 01期

关键词：

pET/PA-6; blends; toughening; interface; core-shell;

D O I：

10.1002/pi.2336

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

BACKGROUND: Poly(ethylene terephthalate) (PET)/polyamide-6 (PA-6) blends are promising for engineering and food-packaging applications. However, their poor toughness limits their use. In this study, an ethylene-acrylate-(maleic anhydride) terpolymer (E-AE-MA) was added to PET/PA-6 blends in order to improve the toughness. RESULTS: Izod impact tests indicated an excellent toughening effect of E-AE-MA. E-AE-MA particles were observed to be selectively dispersed at the interface between PET and PA-6 phases and in the domain of the PA-6 phase. Fourier transform infrared spectroscopy and differential scanning calorimetry results demonstrated that the formation of E-AE-MA layers around PA-6 particles cut off the interaction between PET and PA-6, resulting in an enlarged PA-6 phase domain. CONCLUSION: Based on the experimental results, a core-shell microstructure, with PA-6 as a hard core and E-AE-MA as a soft shell, could be suggested. The formation of this core-shell microstructure, along with the increased PA-6 phase domain size, is the main toughening mechanism of E-AE-MA in PET/PA-6 blends. (c) 2007 Society of Chemical Industry.

引用

页码：139 / 148

页数：10

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