聚丙烯接枝物反应挤出增容PP/PA6共混物的形态结构  

STUDY ON THE MORPHOLOGY OF COMPATIBILIZED PP/PA6 BLEND BY PP GRAFT

作　　者：李笃信[1] 贾德民[1] 郭宝春[1] 

机构地区：[1]华南理工大学高分子系

出　　处：《高分子材料科学与工程》2002年第1期71-74,共4页Polymer Materials Science & Engineering

基　　金：广东省自然科学基金资助项目 (95 0 2 6 6 )

摘　　要：采用 PP熔融接枝 MAH和不饱和羧酸混合单体通过反应挤出增容 PP/ PA6共混物 ,研究了增容共混物的形态结构。SEM、TEM观察表明 ,接枝物能明显降低共混物的分散相尺寸 ,改善体系的分散状况 ,提高共混物两相的相容性 ;增容共混物的两相界面结合改善 ,相界面变得模糊。WAXD、DSC测试表明 ,用该接枝物增容后的共混物 ,组分的 Xc下降 ,分散相微晶尺才减小。研究结果表明该接枝物是Tbe compatibilization of the melt graft of PP with MAH and unsaturated acid on PP/PA6 blend by reactive extrusion was studied in this paper. The results showed that the graft can improve the compatibility of PP/PA6 blend efficiently. SEM and TEM results indicate that the homogeneity of compatibilized PP/PA6 blend has improvement and the particle size of dispersed phase has significant reduction, and the interface become more indistinct. The results of WAXD and DSC show that X c of compatibilized PP/PA6 blend has decreased and the microcrystal size of dispersed phase has also decreased.

关 键 词：聚丙烯/尼龙6共混物 接枝物 形态结构 

分 类 号：O631.13[理学—高分子化学] O632.12[理学—化学]