含芴结构环氧树脂的合成与性能  

SYNTHESIS AND PROPERTIES OF 9,9-BIS FLUORENE

作　　者：张炜[1] 申蕾[1] 王新庆[1] 黄鹏程[1] 

机构地区：[1]北京航空航天大学材料科学与工程学院,北京100083

出　　处：《复合材料学报》2003年第4期81-87,共7页Acta Materiae Compositae Sinica

摘　　要：　合成了一种耐湿热性能优异的环氧树脂9,9-二[4-(2,3-环氧丙氧基)苯基]芴,通过对环氧化反应影响因素的讨论确定了最佳的环氧化反应条件,使产物环氧值达到了理论值的97%。确定了纯的9,9-二[4-(2,3-环氧丙氧基)苯基]芴环氧树脂的固化工艺,并对其树脂浇注料的力学性能进行了评测。为研究9,9-二[4-(2,3-环氧丙氧基)苯基]芴对其它环氧树脂体系湿热性能的影响,对9,9-二[4-(2,3-环氧丙氧基)苯基]芴/AG-80树脂体系的吸水率进行了测定,并比较了该体系吸水前后玻璃化转变温度和模量的变化,从而证明了9,9-二[4-(2,3-环氧丙氧基)苯基]芴对提高环氧树脂耐湿热性能的作用。A kind of highly moisture-resistant epoxy resin, 9,9-bisfluorene (Ⅱ), was synthesized. The optimal epoxidizing condition was obtained by studying the influence of different factors in the reaction, s uch as the amount of the reactants and their concentration, the amount of the c atalyzer, the reaction temperature and time. As a result the epoxy value of the products reached 97% of the calculated value. The mechani cal properties of the cured pure Ⅱ resin were studied. The water-absorbance, t he glass transfer temperature and the module of the pure Ⅱ and the Ⅱ/AG-80 mixtures before and after absorbing water were investigated. The results indicate that the water-absorbance of the resin mixt ures is reduced by the addition of Ⅱ, and Tg and E′ remain co mparatively high after absorbing water compared with the pure AG-80. The additi on of Ⅱ could improve the hot-wet property of AG-80.

关 键 词：环氧树脂 9 9-二[4-(2 3-环氧丙氧基)苯基]芴 合成 湿热性能 吸水率 

分 类 号：TB332[一般工业技术—材料科学与工程]