| DCPD/苯乙烯共聚树脂的热分析研究 |
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| 引用本文： | 李爱元,张慧波,张永春,孙向东.DCPD/苯乙烯共聚树脂的热分析研究[J].中国胶粘剂,2010,19(8). |
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| 作者姓名： | 李爱元 张慧波 张永春 孙向东 |
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| 作者单位： | 宁波职业技术学院化工系,浙江,宁波,315800 |
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| 基金项目： | 浙江省教育厅基金项目，浙江省高校优秀青年教师资金资助项目 |
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| 摘 要： | 采用差示扫描量热(DSC)法和热重(TG)分析法考察了双环戊二烯(DCPD)/苯乙烯(St)共聚树脂在N2中的热分解过程,并根据Friedman法(多加热速率法)和Kissinger法(代替高解析法)计算出热分解反应的动力学参数。在动力学研究的基础上,对DCPD/St共聚树脂使用寿命进行了预测。结果表明:DCPD/St共聚树脂的热分解反应过程大致可分为前期(失重率≤20%)、中期(失重率为30%～80%)和后期(失重率≥90%)3个阶段,前期和中期反应可以认为是1级反应,中期反应的平均活化能为150.43 kJ/mol;热分解温度随着升温速率的增加而提高,热分解反应活化能随着失重率的增加而增大;当温度低于200℃时,DCPD/St共聚树脂具有较好的热稳定性。
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| 关 键 词： | 双环戊二烯 苯乙烯 共聚 热重分析 动力学 参数 寿命 预测 |
Study on thermal analysis of DCPD/styrene copolymer |
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| LI Ai-yuan,ZHANG Hui-bo,ZHANG Yong-chun,SUN Xiang-dong.Study on thermal analysis of DCPD/styrene copolymer[J].China Adhesives,2010,19(8). |
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| Authors: | LI Ai-yuan ZHANG Hui-bo ZHANG Yong-chun SUN Xiang-dong |
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| Affiliation: | LI Ai-yuan,ZHANG Hui-bo,ZHANG Yong-chun,SUN Xiang-dong(Department of Chemical Engineering,Ningbo Professional and Technical College,Ningbo 315800,China) |
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| Abstract: | The pyrolysis process in N2 of the dicyclopentadiene(DCPD)/styrene(St) copolymer was investigated by differential scanning calorimetry(DSC) and thermogravimetry(TGA),and the kinetics parameters of pyrolytic reaction were calculated by Friedman method(different heating speed method) and Kissinger method(substitute of high-resolution method).The useful time of the DCPD/St copolymer was forecasted based on the dynamics research.The results showed that the pyrolytic reaction process of the DCPD/St copolymer cou... |
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| Keywords: | DCPD styrene copolymerization thermogravimetry(TGA) dynamics parameter useful time forecast |
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