POE-g-GMA影响高填充EVA/FRC复合材料性能的机理研究  

Study on the mechanism of POE-g-GMA affecting the properties of high-filled EVA/FRC composites

作　　者：胡金平 王平 周意杨 黄昊鹏 胡以权 丁运生 Hu Jinping;Wang Ping;Zhou Yiyang;Huang Haopeng;Hu Yiquan;Ding Yunsheng(School of Chemistry and Chemical Engineering,Hefei University of Technology,Hefei Anhui 230009,China;School of Materials and Chemical Engineering,Anhui Jianzhu University,Hefei Anhui 230601,China;Jingfeng Cable Group Co.,Ltd.,Chuzhou Anhui 239300,China;Anhui Province Key Laboratory of Advanced Functional Materials and Devices,Hefei Anhui 230009,China)

机构地区：[1]合肥工业大学化学与化工学院,安徽合肥230009 [2]安徽建筑大学材料与化学工程学院,安徽合肥230601 [3]晶锋集团股份有限公司,安徽滁州239300 [4]先进功能材料与器件安徽省重点实验室,安徽合肥230009

出　　处：《石油化工》2021年第8期760-765,共6页Petrochemical Technology

基　　金：安徽省重大科技成果工程化研发项目(201903c08020009);校地合作产业创新引导资金平台项目(JZ2020YDZJ0005);国家自然科学基金项目(51903002);安徽省高校省级自然科学研究项目(KJ2019A0774);安徽省科技重大专项项目(201903a05020027);校地合作产业创新引导资金项目(JZ2019AHDS0006)。

摘　　要：通过熔融共混和热压硫化将甲基丙烯酸缩水甘油酯接枝聚烯烃弹性体(POE-g-GMA)引入乙烯-乙酸乙烯酯共聚物(EVA)/无卤复合阻燃剂(FRC)复合材料中,其中FRC含量为44%(w)。利用SEM和流变仪研究了POE-g-GMA对高含量FRC在EVA基体中的分散状态以及对复合材料流变行为的影响,应用DSC、万能试验机和极限氧指数测定仪表征了复合材料的结晶行为及拉伸、耐油和阻燃性能。实验结果表明,POE-g-GMA的引入可明显提高FRC在EVA基体中的分散相容性,同时提高了复合材料的拉伸和耐油性能,复合材料的极限氧指数稳定在约39%。POE-g-GMA促进了FRC在EVA基体中的分散,提高了FRC粒子和EVA之间的界面结合力,有助于复合材料中物理和化学交联网络的形成,使得复合材料的综合性能得到提高。Macromolecular compatibilizer glycidyl methacrylate grafted polyolefin elastomer(POEg-GMA)was introduced into ethylene-vinyl acetate copolymer(EVA)/halogen-free flame retardant composites(FRC)with a FRC content of 44%(w)via melt blending and hot press vulcanization.The effect of POE-g-GMA on the dispersion of high content FRC in EVA matrix and the rheological behavior of the composites were studied by SEM and rheometer,respectively.In addition,DSC,universal testing machine and limiting oxygen index(LOI)tester were used to characterize the crystallization behavior,mechanical properties,oil resistance and flame retardancy of the composites.The results showed that the introduction of POE-g-GMA can significantly improve the dispersion compatibility of FRC in the EVA matrix and at the same time improve the mechanical properties and oil resistance of the composites.The LOI of the composites was stable at about 39%.POE-g-GMA enhanced the dispersion of FRC in the EVA matrix,improved the interfacial bonding force between FRC particles and EVA,contributed to the formation of physical and chemical crosslinking network in the composites,and hence improved the comprehensive performance of the composites.

关 键 词：相容剂 填料分散 界面相互作用 机械性能 复合材料 

分 类 号：TQ314.24[化学工程—高聚物工业]