%0 Journal Article
%T MORPHOLOGICAL EVOLUTION AND VISCOELASTIC BEHAVIOR OF COMPATIBILIZED HDPE/PA6 BLENDS<br>HDPE/PA6反应增容体系的形态演化与黏弹行为
%A ZHAO Li
%A YANG Hongmei
%A SHANGGUAN Yonggang
%A ZHANG Farao
%A ZHENG Qiang
%A <br>赵丽
%A 杨红梅
%A 上官勇刚
%A 张发饶
%A 郑强
%J 高分子学报
%D 2008
%I 
%X Morphologies and viscoelastic behavior of high density polyethylene/nylon 6(HDPE/PA6) blends compatibilized by maleic anhydride grafted high density polyethylene(HDPE-g-MAH) were studied through observation of scanning electron microscope(SEM) and dynamic rheological testing.It is found that HDPE-g-MAH can efficiently enhance the compatibility between PA6 and HDPE and improve the dispersion of PA6 and the interfacial state of phases due to in situ forming of graft copolymer(HDPE-g-PA6).Such improvement appears more obviously with the increasing of HDPE-g-MAH content when the concentration of HDPE-g-MAH is below 20 wt%.Hence,change of HDPE-g-PA6 amount also results in corresponding variations of linear viscoelastic behavior for the blends.The zero shear viscosity of blends increases with the addition of HDPE-g-MAH and approaches invariablenes with 20 wt% HDPE-g-MAH.At low frequency region the dependence of storage modulus on frequency for the blends tends to be weakened with the increase of HDPE-g-MAH concentration and begins to show "second plateau" with 10 wt% HDPE-g-MAH.These phenomena reflect macromolecular-chains entanglement enhancement due to HDPE-g-PA6 forming.Both changes in morphologies and viscoelastic behavior for blends are ascribed to formation of HDPE-g-PA6.Compared with SEM observation,dynamic rheological testing gives much information about interface and interaction between macromolecular-chains.It is suggested that structure evolution with increase of HDPE-g-MAH content for HDPE/PA6 blends can be characterized preferably by using dynamic rheological measurements.
%K Nylon 6
%K Polyethylene
%K Linear viscoelastic behavior
%K Morphology<br>尼龙6
%K 聚乙烯
%K 线性黏弹行为
%K 形态
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=15971983683C7643EE80F1CE621DEB60&aid=AE2450185BCCCD5B89F2E83CAC496639&yid=67289AFF6305E306&iid=9CF7A0430CBB2DFD&sid=8AD9BBE1FAF6BB78&eid=8D95DD1211171525&journal_id=1000-3304&journal_name=高分子学报&referenced_num=1&reference_num=19