PMMA-g-Al_2O_3填充环氧树脂纳米复合材料的制备及性能研究  

Preparation and Performance Study of PMMA-g-Al_2O_3/EP Nano-Composite

作　　者：陈立亚[1,2] 付继芳[1,2] 施利毅[1,2] 陈怡[1,2] 

机构地区：[1]上海大学纳米科学与技术研究中心,上海200444 [2]东莞上海大学纳米技术研究院,广东东莞523000

出　　处：《绝缘材料》2012年第4期1-4,共4页Insulating Materials

基　　金：上海市教育委员会重点学科项目(J50102);教育部科学技术研究重点项目(208182);上海大学创新基金(A10-0407-11-002);教师专业发展工程-高校教师产学研践习计划(B.60-B407-11-002);上海市第三期重点学科(S30107)

摘　　要：以聚甲基丙烯酸甲酯(PMMA)改性nano-Al2O3为填料,制备了PMMA-g-Al2O3/EP复合材料,并对其性能进行研究。结果表明:PMMA改性Al2O3纳米粉体的加入改善了环氧树脂的导热性能、冲击强度等综合性能,其冲击强度可达到18.34 kJ/m2,热导率提高率为22.9%,体积电阻率最高为14.98×1013Ω.m,且PMMA改性纳米Al2O3填充环氧树脂的综合性能优于未改性纳米Al2O3和A151改性纳米Al2O3填充环氧树脂的性能。A PMMA-g-Al2O3/EP composite was prepared using nano-Al2O3 modified by poly（methyl methacrylate） as filler,and its properties were studied.The results show that the addition of PMMA-g-Al2O3 improves the comprehensive properties such as thermal conductivity and impact strength of the epoxy resin;and the impact strength attains 18.34 kJ/m2,the increasing rate of thermal conductivity and volume resistivity 22.9% and 14.98 × 1013Ω.m,respectively.The comprehensive properties of the epoxy resin filled by PMMA-g-Al2O3 are superior to that filled by unmodified nano-Al2O3 and A151 modified nano-Al2O3.

关 键 词：环氧树脂 聚甲基丙烯酸甲酯 复合材料 纳米氧化铝 

分 类 号：TM215.1[一般工业技术—材料科学与工程] TQ323.5[电气工程—电工理论与新技术]