PP-g-MAH对PP／PA6共混物的增容作用  

Effects of Maleic Anhydrite Grafted Polypropylene on the Compatibility of PP/PA6 Blends

作　　者：李建华[1] 洪若瑜[1,2] 丁建刚[1] 李洪钟[2] 

机构地区：[1]苏州大学材料与化学化工学部江苏省有机合成重点实验室,江苏苏州215123 [2]中国科学院过程工程研究所多相反应重点实验室,北京100080

出　　处：《塑料科技》2009年第2期24-27,共4页Plastics Science and Technology

基　　金：国家自然科学基金(NNSFC,Nos.20876100和20736004);中科院多相反应重点实验室基金(No.2006-5);中科院煤转化国家重点实验室基金(No.2006-902)

摘　　要：采用熔融接枝法,考察了单体和引发剂用量对聚丙烯(PP)/马来酸酐(MAH)接枝物接枝率的影响。将PP-g-MAH作为PP/尼龙6(PA6)共混物的增容剂,并利用SEM、XRD、DSC-TGA和万能试验机等测试手段对PP-g-MAH增容改性PP/PA6共混体系进行了研究。结果表明,PP-g-MAH接枝物对PP/PA6共混物具有良好的增容效果,PP结晶得到细化,共混物的力学性能和耐高温性能得到改善。Maleic anhydrite was grafted onto polypropylene by melt grafting method, and the effects of the amounts of monomers and initiator on the grafting rate were discussed. The PP-g-MAH was used as a compatibilizer in the blend of PP and PA6, and the SEM, XRD, DSC-TGA and universal tester were employed to evaluate the compatibility of PP/PA6 blended with PP-g-MAH. The results showed that the PP-g-MAH had good effects on the compatibility of the PP/PA6 blend, the crystalline of PP was refined, and the mechanical properties and heat-resistant performance of the blend were improved.

关 键 词：聚丙烯 尼龙6 马来酸酐 熔融接枝 增容剂 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]