纳米Al_2O_3颗粒改性环氧树脂的热性能研究  

Thermal Performance of Epoxy Resins Modified with Nano-Al_2O_3 Particles

作　　者：蒋巍[1] 田艳 刘艳杰[3] 

机构地区：[1]吉林化工学院材料科学与工程学院,吉林吉林132022 [2]吉林绰丰柳机内燃机有限公司,吉林吉林132200 [3]吉林化工学院化工与生物工程学院,吉林吉林132022

出　　处：《化学世界》2015年第5期277-279,283,共4页Chemical World

摘　　要：研究了纳米氧化铝增强环氧树脂复合材料的热力学行为其中包括:固化行为,热稳定性,动态力学特性和热力学性能。纳米复合材料的DSC曲线峰值温度随着纳米级氧化铝的逐渐增加呈递减趋势。复合材料的热稳定性类似于纯环氧树脂。动态力学分析(DMA)表明复合材料的玻璃化转变温度较纯环氧树脂高出约11℃。热膨胀系数随着复合材料中纳米级氧化铝的增加而降低。The thermal performance of epoxy resins/nano-Al2O3 composites including the curing behavior, thermal stability, dynamic mechanical properties and thermal mechanical properties was studied. The DSC curve peak temperature of the composites was decreased by the addition of nano-Al2O3. The thermal stability of the composites was similar to that of the neat epoxy resins. Dynamic mechanical analysis （DMA） indicated that the glass transition temperature of the composites was approximately 11℃ higher than that of the neat epoxy resins. The coefficient of thermal expansion （CTE） of the composites decreased with increasing nano-Al2O3 content.

关 键 词：环氧树脂 纳米氧化铝 复合材料 固化行为 热稳定性 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]