Effects of poly-(p-phenylene terephthamide) powder coated with polydopamine on ethylene-propylene-diene-terpolymer grafted maleic anhydride  

作　　者：Ye Yuan Sufen Deng Shaokun Song Weibo Hu Lijie Dong 

机构地区：[1]School of Material Science and Engineering, Wuhan University of Technology

出　　处：《Science China Chemistry》2016年第4期459-465,共7页中国科学（化学英文版）

基　　金：supported by the National Natural Science Foundation of China (51273157);Program for New Century Excellent Talents in University (NCET-10-0659);Key Program of Natural Science Foundation of Hubei Province of China (2013CFA020)

摘　　要：In this paper, we report a technique for the surface modification of poly-(p-phenylene terephthamide)(PPTA) powder coated with polydopamine(PDOPA). We used air oxidation to self-polymerize dopamine(DOPA) to ensure that the PPTA powder was coated. Our results indicate that the modified surface of PPTA powder enhances compatibility with the polymer matrix without damaging its structure. Additionally, it is possible to control the coating thickness of PDOPA by regulating the reaction time. The modified PPTA powder improved the comprehensive property of ethylene-propylene-diene-terpolymer grafted maleic anhydride(EPDM-g-MAH), and it proved that this method can enhance the strength and electric insulativity of EPDM-g-MAH.In this paper, we report a technique for the surface modification of poly-（p-phenylene terephthamide） （PPTA） powder coated with polydopamine （PDOPA）. We used air oxidation to self-polymerize dopamine （DOPA） to ensure that the PPTA powder was coated. Our results indicate that the modified surface of PPTA powder enhances compatibility with the polymer matrix without damaging its structure. Additionally, it is possible to control the coating thickness of PDOPA by regulating the reac- tion time. The modified PPTA powder improved the comprehensive property of ethylene-propylene-diene-terpolymer grafted maleic anhydride （EPDM-g-MAH）, and it proved that this method can enhance the strength and electric insulativity of EPDM-g-MAH.

关 键 词：poly-（p-phenylene terephthamide） powder EPDM-G-MAH POLYDOPAMINE composites 

分 类 号：O631[理学—高分子化学]