【作者】 周恒； 陈佳； 胡成龙； 刘学清； 刘继延；

【Author】 ZHOU Heng, CHEN Jia, HU Chenlong,LIU XueQing, LIU JiYan (Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, Jianghan University, Wuhan 430056, China)

【机构】 光电化学材料与器件省部共建教育部重点实验室 江汉大学；

【摘要】 选取甲基乙基次膦酸铝(Al(MEP)、二乙基次膦酸铝Al(DEP)、甲基丁基次膦酸铝Al(MBP)和甲基环己基次膦酸铝Al(MHP)与环氧树脂(EP)复合,通过对复合材料的阻燃性、热稳定性、力学性能、次膦酸铝盐与EP间的相容性以及其在EP中的迁移性的测试,初步探究了次膦酸铝盐中烷基结构对其本身性能的影响。研究结果表明:Al(MEP)由于其具有带有最小的烷基基团以及最高的含磷量而具有最好的热稳定性以及阻燃性能。Al(MBP)和Al(DEP)带有中等体积的烷基基团,相较于Al(MEP)和Al(MHP)而言与EP具有更好的相容性,对材料的力学性能影响较小,使得EP复合材料具有较高的弯曲强度。次膦酸铝盐在EP中的迁移性随着烷基基团体积的增大而减弱,Al(MHP)由于具有较大的烷基基团使得其迁移性最弱。更多还原

【Abstract】 Four aluminum phosphinates: aluminum methylethylphosphinate (Al(MEP)), aluminum diethylphosphinate (Al(DEP)), aluminum methylbutylphosphinate (Al(MBP)), aluminum methyl cyclohexylphosphinate (Al(MHP)) filled epoxy (EP) composites were compared. The flame retardancy、thermal stability、flexural strength of the EP composites、compatibility between aluminum phosphinates and EP as well as leaching of the aluminum phosphinates from EP were investigated so as to research the influence of alkyl group of aluminum phosphinates on its properties.The results showed that Al(MEP)has the best thermal and flame retardant because of its minimum alkyl group and maxmum phosphorus-containing. Compared to Al(MEP) and Al(MHP), Al(MBP) and Al(DEP) with medium alkyl group have a better compatibility with EP. So the composites with Al(MBP) and Al(DEP) represented a high flexural strength. Leaching test showed that migratory aptitude of aluminum phosphinate decreased with the increasing volume of alkyl group. Due to the large alkyl group of Al(MHP), the leaching of it from EP is the weakest.更多还原