| 基于差示扫描量热法的环氧沥青固化特征分析 |
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| 引用本文： | 钱玉春,陈拴发,丛培良.基于差示扫描量热法的环氧沥青固化特征分析[J].武汉理工大学学报,2011(11). |
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| 作者姓名： | 钱玉春 陈拴发 丛培良 |
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| 作者单位： | 长安大学公路学院;长安大学材料科学与工程学院; |
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| 基金项目： | 国家自然科学基金(50978031) |
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| 摘 要： | 采用非等温差示扫描量热法(DSC)对环氧沥青及环氧树脂体系的固化反应特征进行了研究。根据不同升温速率下反应物体系固化反应的DSC特征曲线,探讨其固化反应特征,为优化环氧沥青的固化及施工工艺提供基础。试验结果表明,环氧树脂固化后,提高了沥青材料的凝胶温度、固化温度以及后处理温度,从而显著提高了环氧沥青的热稳定性特别是耐高温性能。进一步研究发现,在环氧沥青固化特征的研究中需要考虑扩散作用的影响,从而提出带部分扩散控制的环氧沥青固化反应特征。
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| 关 键 词： | 环氧沥青 固化反应 DSC 固化特征 |
Curing Characteristics of Epoxy Asphalt Studied by Differential Scanning Calorimetry |
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| QIAN Yu-chun,CHEN Shuan-fa,CONG Pei-liang.Curing Characteristics of Epoxy Asphalt Studied by Differential Scanning Calorimetry[J].Journal of Wuhan University of Technology,2011(11). |
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| Authors: | QIAN Yu-chun CHEN Shuan-fa CONG Pei-liang |
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| Affiliation: | QIAN Yu-chun1,CHEN Shuan-fa2,CONG Pei-liang2 (1.School of Highway,Chang'an University,Xi'an 710064,China,2.School of Materials Science and Engineering,Xi'an 710061,China) |
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| Abstract: | The curing characteristics of epoxy asphalt and the relevant epoxy resin were studied by non-isothermal differential scanning calorimetry(DSC) technique.According to the DSC graphs at different heating rates,the curing characteristics of epoxy asphalt were studied which lay a foundation for the optimization of the curing and construction technology of epoxy asphalt.The results showed that,after the curing of the epoxy resin,the gelation temperature,curing temperature and the post-treating temperature of the... |
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| Keywords: | epoxy asphalt curing reaction DSC curing characteristic |
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