双(2,3-环氧环戊基)醚与芳香二胺的固化过程  

THE CURING PROCESS OF BIS(2,3-EPOXYCYCLOPENTYL)ETHER WITH AROMATIC DIAMINES

作　　者：黄吉甫[1] 王德润[1] 张保龙[1] 路延岭 Huang Jifu;Wang Derun;Zhang Baolong;Lu Yanling(Department of Chemistry,Nankai University,Tianjin)

机构地区：[1]南开大学化学系

出　　处：《高等学校化学学报》1982年第3期418-424,共7页Chemical Journal of Chinese Universities

摘　　要：本文用示差扫描量热法(DSC)、动态扭辮分析仪(TBA)对双(2,3-环氧环戊基)醚与芳香二胺的固化过程进行了研究。DSC扫描结果表明固化反应分两个阶段进行,对此两个阶段固化反应的机理进行了讨论。由TBA法测得的凝胶化时间对固化温度倒数作图符合Arrhenius关系式,但较高温度区与低温区的斜率却不相同。这一现象可能与体系在不同温度区所处的状态有关。最后,以实验数据绘出热固化相图,并作了简要讨论。The curing process of bis(2,3-epoxycyclopentyl)ether with aromatic diamines has been studied by differential scanning calorimetry(DSC)and torsional braid analysis(TBA).The DSC scans show that there are two separate exothermal peaks,both of which are proved to be the curing behavior of the reaction system.So it is suggested that the whole curing process proceeds in two stages.The mechanism concerning the two stages cure is discussed.From the isothermal cure curves obtained by TBA as a function of time,the results for the time needed to go to gel point fit Arrhenius relation,but two different slopes are obtained for the higher and lower isothermal cures curves,which might be related to the heterogenity of the reactive systems at lower isothermal cures,and homogenity at higher isothermal cures,where the reactive components are dissolved mutually and mixed intimately on a molecular level.Finally,the gelation-vitrification phase diagram is constructed and discussed.

关 键 词：凝胶化时间 热固化 固化反应 芳香二胺 固化温度 固化过程 TBA法 环氧 

分 类 号：G63[文化科学—教育学]