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| 双酚A环氧树脂改性二氧化双环戊二烯体系固化动力学分析及其性能研究 | |
| 引用本文： | 吕文丽,肖加余,徐旺生,曾竟成,刘钧,蒋卫和. 双酚A环氧树脂改性二氧化双环戊二烯体系固化动力学分析及其性能研究[J]. 国防科技大学学报, 2012, 34(3): 38-43,62 |
| 作者姓名： | 吕文丽 肖加余 徐旺生 曾竟成 刘钧 蒋卫和 |
| 作者单位： | 1. 国防科技大学航天与材料工程学院,湖南长沙410073;武汉工程大学化工与制药学院,湖北武汉430073 2. 国防科技大学航天与材料工程学院,湖南长沙,410073 3. 武汉工程大学化工与制药学院,湖北武汉,430073 4. 湖南岳阳昌德化工实业有限公司,湖南岳阳,414004 |
| 摘 要： | 二氧化双环戊二烯(CDR -0122)环氧树脂固化物的耐热性较好,但脆性大.采用不同质量分数的环氧(E -51)改性CDR -0122.对不同的改性体系进行DSC分析,确定其活化能、反应级数和最佳固化工艺.对改性的CDR - 0122环氧树脂固化物进行力学性能和耐温性能测试.结果表明:当加入E-51的质量分数为30％时,CDR -0122的树脂体系的综合性能最优.相比改性前,改性后的树脂体系活化能略有下降,并且其拉伸强度和弯曲强度分别提高了52.38％和54.77％,但玻璃化转变温度略有下降. |
| 关 键 词： | 二氧化双环戊二烯 E-51 改性 力学性能 耐温性能 |
| 收稿时间： | 2011-07-16 |
Curing dynamics analysis and properties of acycloaliphatic modified by bisphenol A(E-51) epoxy resin |
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| LV Wenli,XIAO Jiayu,XU Wangsheng,ZENG Jingcheng,LIU Jun and JIANG Weihe. Curing dynamics analysis and properties of acycloaliphatic modified by bisphenol A(E-51) epoxy resin[J]. Journal of National University of Defense Technology, 2012, 34(3): 38-43,62 | |
| Authors: | LV Wenli XIAO Jiayu XU Wangsheng ZENG Jingcheng LIU Jun JIANG Weihe |
| Affiliation: | 1.College of Aerospace and Materials Engineering,National University of Defense Technology,Changsha 410073,China; 2.College of Chemical Engineering and Pharmacy,University of Wuhan Institute of Technology,Wuhan 430073,China; 3.Changde Chemcial Corporation Limited,Yueyang 414004,China) |
| Abstract: | Acycloaliphatic(CDR-0122) epoxy resin has good heat-resistance,but it is characterized by being brittle.CDR-0122 modified with different mass fraction of epoxy(E-51) were studied.First,DSC analysis was carried out to determine the activation energy,reaction order and the best curing procedure of the modified resin.Then mechanical property and heat-resistance property of the cured modified resin were tested.The results showed that,compared with the unmodified CDR-0122,the activation energy of the modified resin system decreased slightly,and its tensile strength and flexural strength increased by 52.38% and 54.77%,respectively,but the glass transition temperature decreased slightly.Considering all aspects of performance,the system of CDR-0122 modified with 30 wt% E-51 is the best one. |
| Keywords: | acycloaliphatic epoxy modification mechanics property heat-resistance |
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