| 引用本文: | 吕文丽,肖加余,徐旺生,等.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.[点击复制] |
| LV Wenli,XIAO Jiayu,XU Wangsheng,et al.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[点击复制] |
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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 |
| 吕文丽1,2, 肖加余1, 徐旺生2, 曾竟成1, 刘钧1, 蒋卫和3 |
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(1.国防科技大学 航天与材料工程学院，湖南 长沙 410073;2.武汉工程大学 化工与制药学院，湖北 武汉 430073;3.湖南岳阳昌德化工实业有限公司，湖南 岳阳 414004)
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| 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 |
| DOI： |
| 投稿日期：2011-07-16 |
| 基金项目:国家部委基金项目 |
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| Curing dynamics analysis and properties of acycloaliphatic modified by bisphenol A(E-51) epoxy resin |
| LV Wenli1,2, XIAO Jiayu1, XU Wangsheng2, ZENG Jingcheng1, LIU Jun1, JIANG Weihe3 |
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(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)
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| 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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