Study on Properties and Morphology of PA6/POE Blends Compatibized by POE Grafted Itaconic Acid

作者：Hou Baoqing · 发表于：China Plastics · 年份：2010 · 研究领域：Polymer crystallization and properties、Electrospun Nanofibers in Biomedical Applications、biodegradable polymer synthesis and properties

In this paper,a series of ethylene-octene copolymer graft(POE-g-ITA) was prepared via melt grafting technique using a twin screw extruder.The grafted product was characterized uisng FT-IR,and the effect of the loading of itaconic acid initiator on the graft ratio and melt flow rate of POE-g-ITA were studied.The graft ratio of POE-g-ITA reached 1.36 % when POE/ITA/DCP is 94/6/0.36.The obtained POE-g-ITA was introduced into PA6/POE blends through twin screw extruder.The mechanical properties and morphological structure of the blends were investigated.The impact strength of the PA6/POE blend containing 5 phr POE-g-ITA was 12.78 times higher than neat PA6.The interface between PA6 and POE phases became indistinct and the dispersion phase size significantly reduced,the interface interaction was markedly enhanced and the compatibility was significantly increased.