接枝改性对HDPE基微波竹炭复合材料性能的影响  

Effect of Melt-Grafted Modification on Properties of HDPE/Microwave Bamboo Charcoal Composite

作　　者：李珊珊[1] 高炜斌[1] 马立波[1] 陈晓松[1] 张枝苗[1] LI Shanshan;GAO Weibin;MA Libo;CHEN Xiaosong;ZHANG Zhimiao(Changzhou Institute of Engineering Technology,Changzhou,Jiangsu 213164,China)

机构地区：[1]常州工程职业技术学院,江苏常州213164

出　　处：《塑料》2020年第2期59-63,共5页Plastics

基　　金：常州工程职业技术学院院级课题(11130300118009)。

摘　　要：采用高密度聚乙烯(HDPE)作为基体树脂,微波改性竹炭作为填料,通过熔融接枝法制备了HDPE基微波竹炭复合材料,分析了顺丁烯二酸酐(MAH)、过氧化二异丙苯(DCP)的含量及比例,对复合材料静态、动态力学性能和热稳定性能的影响。静态力学性能结果表明,随着MAH、DCP含量的增加,HDPE基微波竹炭复合材料的力学性能呈先增大后降低的趋势;当MAH含量一定,MAH∶DCP比例为2∶0.1时,HDPE基微波竹炭复合材料的力学性能较优。动态热机械分析仪(DMA)与热重分析仪(TGA)分析表明,MAH熔融接枝改性提高了HDPE与微波竹炭两相之间的界面作用力,有利于改善HDPE与微波竹炭的界面性能,与SEM分析结果一致;并且,还能提高复合材料在高温下的热稳定性。HDPE/microwave bamboo carbon composite was prepared by melt grafting with HDPE as matrix resin and microwave-modified bamboo charcoal as filler,the effects of the content and ratio of MAH and DCP on the static and dynamic mechanical properties and thermal stability of the composite were analyzed.The results of static mechanical properties showed that the mechanical properties of HDPE/bamboo carbon composite increased at first and then decreased with the increase of MAH and DCP contents,when the MAH content was constant and the MAH∶DCP ratio was 2∶0.1,the mechanical properties of HDPE/bamboo carbon composite were better;DMA and TGA analysis showed that the melt grafting modification of MAH improved the interfacial force and the interfacial performance between HDPE and microwave bamboo charcoal,which was consistent with the results of SEM analysis and also could improve the thermal stability of composite at high temperature.

关 键 词：微波改性竹炭 HDPE 熔融接枝改性 复合材料 性能 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]