氨基笼型倍半硅氧烷改性中温固化环氧树脂的力学性能和热行为  

The Mechanical Properties and Thermal Behavior of the Moderate Temperature Curing Epoxy Resin Modified by Amino-functionalized Polyhedral Oligomeric Silesquioxane

作　　者：王雪松[1] 李亚坤[1] 吴健伟[1,2] 魏运召[1] 付刚[1,2] 匡弘[1,2] 于昕[1,2] 

机构地区：[1]黑龙江省科学院石油化学研究院,黑龙江哈尔滨150040 [2]黑龙江省科学院高技术研究院,黑龙江哈尔滨150020

出　　处：《化学与粘合》2016年第4期250-254,共5页Chemistry and Adhesion

摘　　要：合成了可溶性氨基倍半硅氧烷(POSS),用于中温固化环氧树脂的改性。研究了POSS对树脂力学性能、玻璃化转变温度及热失重的影响并与聚砜改性进行了对比。氨基笼型倍半硅氧烷能显著提高中温固化环氧树脂力学性能,改性效果和聚砜改性接近。氨基POSS改性的中温固化树脂的玻璃化转变温度和热分解温度也有所提高,改性树脂180℃长时间老化后的玻璃化转变温度高于未改性环氧且呈微观分相特征。A soluble amino-functionalized polyhedral oligomeric silesquioxane （POSS） was synthesized and used for the modification of the moderate temperature curing epoxy resin. The mechanical properties, glass transition temperature and thermal weight loss of the modified epoxy resin were investigated and eompared with that of the polysulfone modified resin. The aruino-functionalized POSS increases the mechanical properties of the modified epoxy significantly, which nearly does as the polysulfone does. The glass transition temperature and thermal decomposition teraperature of the POSS modified epoxy also increases obviously. The glass transition temperature of the resin after a long time aging at 180℃ is higher than that of the unmodified epoxy and characterized by a microcosmic phase separation.

关 键 词：笼型倍半硅氧烷 环氧树脂 力学性能 热性能 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业]