凹凸棒土改性PVC/HDPE合金研究  

STUDIES ON PVC/HDPE ALLOY MODIFIED WITH ATTAPULGITE

作　　者：王平华[1] 宋功品[1] 

机构地区：[1]合肥工业大学化工学院高分子科学与工程系,230009

出　　处：《现代塑料加工应用》2005年第3期12-14,共3页Modern Plastics Processing and Applications

基　　金：安徽省自然科学基金资助项目(03044802);安徽省国际科技合作项目(03088003)。

摘　　要：在经硅烷偶联剂(KH-570)修饰的凹凸棒土(AT)表面吸附过氧化二异丙苯(DCP)和丙烯酰胺(AM),用处理过的凹凸棒土(AM-AT)填充PVC/HDPE合金,测试其力学性能,发现力学性能有所提高。用FTIR,XRD,DSC表征手段,对复合材料进行了表征。结果表明,AT对复合材料中的HDPE结晶影响不明显,但AT和引入的马来酸酐接枝HDPE(HDPE-g-MAH)对复合材料的玻璃化转变温度tg及熔融峰顶温度tm都有一些影响。Dicumy peroxide(DCP) and acrylamide(AM) were absorbed onto the surfaces of the attapulgite(AT) modified with coupling agent KH-570. The modified attapulgite(AM-AT) was filled into PVC/HDPE to prepare nanocomposite. The AM-AT/PVC/HDPE composites were analyzed by FTIR,XRD and DSC characterization methods. The influence of AM-AT on the crystallizability of HDPE in composite was not remarkable, but the tensile and impact strength of the composite were improved.tg and tm of the composite were effected by AM-AT and HDPE-g-MAH.

关 键 词：HDPE 凹凸棒土 PVC 合金 过氧化二异丙苯 玻璃化转变温度 改性 复合材料 马来酸酐接枝 力学性能 硅烷偶联剂 丙烯酰胺 表面吸附 FTIR 表征手段 峰顶温度 XRD DSC AT 熔融 tg 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]