| 环氧树脂增韧固化剂固化反应的FT-IR研究 |
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| 引用本文： | 成煦,刘晓东,陈艳雄,伍燕,蒋禹旭,杜宗良.环氧树脂增韧固化剂固化反应的FT-IR研究[J].塑料工业,2011,39(3). |
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| 作者姓名： | 成煦 刘晓东 陈艳雄 伍燕 蒋禹旭 杜宗良 |
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| 作者单位： | 1. 四川大学纺织研究所,四川,成都,610065
2. 成都纺织高等专科学校,四川,成都,611731 |
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| 摘 要： | 使用环氧-三乙烯四胺缩聚物G(Epon828-TETA)及其环氧油酸辛酯改性物(G1)作为环氧树脂(Epon828)的固化剂,通过傅立叶变换红外光谱(FT-IR)法,比较研究了G/Epon828和G1/Epon828两个固化体系的动态等温固化过程,并能进一步对两个固化体系固化初期的固化反应进行了动力学研究.结果表明:两个固化体系的环氧基转化率都在较短时间内达到较高水平,随时间的延长,转化率上升缓慢并逐渐趋于恒定;固化温度越高,转化率越高;固化反应的反应速率在开始时很快达到最高,随反应时间的延长,反应速率逐渐下降并趋于稳定,并且固化温度越高,反应速率越高;但在相同的固化温度下,G/Epon828固化体系的转化率始终高于G1/Epon828固化体系.前者的固化反应速率在初期也大于后者;G/Epon828和G1/Epon828固化体系的固化反应均属一级反应,在相同的环氧基转化率时,前者的反应活化能和指前因子均小于后者.
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| 关 键 词： | 环氧树脂 柔性固化剂 固化反应动力学 红外光谱 |
FT-IR Study on Curing Reaction of Epoxy Toughening Curing Agent |
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| CHENG Xu,LIU Xiao-dong,CHEN Yan-xiong,WU Yan,JIANG Yu-xu,DU Zong-liang.FT-IR Study on Curing Reaction of Epoxy Toughening Curing Agent[J].China Plastics Industry,2011,39(3). |
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| Authors: | CHENG Xu LIU Xiao-dong CHEN Yan-xiong WU Yan JIANG Yu-xu DU Zong-liang |
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| Affiliation: | CHENG Xu1,LIU Xiao-dong2,CHEN Yan-xiong1,WU Yan1,JIANG Yu-xu1,DU Zong-liang1(1.Textile Institute,Sichuan University,Chengdu 610065,China,2.Chengdu Textile College,Chengdu 611731,China) |
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| Abstract: | Amine-terminated epoxy-triethylenetetramine prepolymer G(Epon828-TETA)and G1 modified with epoxidized oleic capryl ester were used as epoxy curing agents for epoxy resin(Epon828)respectively.The isothermal curing reaction processes of G/Epon828 and G1/Epon828 curing systems were researched by FT-IR respectively.The curing reaction in the beginning period of the two curing system was studied by curing kinetics.The results demonstrated that the fractional conversions and reaction rates were rapidly increased ... |
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| Keywords: | Epoxy Resin Tough Curing Agent Curing Kinetics FT-IR |
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