| 氧化石墨烯对氰酸酯树脂固化动力学的影响 |
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| 引用本文： | 公超,颜红侠,张梦萌. 氧化石墨烯对氰酸酯树脂固化动力学的影响[J]. 中国胶粘剂, 2012, 0(9): 1-4 |
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| 作者姓名： | 公超 颜红侠 张梦萌 |
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| 作者单位： | 西北工业大学理学院应用化学系 |
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| 基金项目： | 航空科学基金项目(2011ZF53064);西北工业大学研究生创业种子基金资助项目(Z2012162) |
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| 摘 要： | 以自制GO(氧化石墨烯)作为BCE(双酚A型氰酸酯)的改性剂制备相应的改性树脂。采用非等温DSC(差示扫描量热)法、Kissinger法、Crane法和升温速率-温度(β-T)外推法研究了GO对BCE固化动力学的影响,确定了纯BCE和GO/BCE体系的固化工艺条件和动力学参数。结果表明:纯BCE体系的凝胶温度为180.0℃、固化温度为201.0℃和后处理温度为221.1℃;GO/BCE体系的凝胶温度为158.8℃、固化温度为195.7℃和后处理温度为214.3℃;纯BCE和GO/BCE固化体系的活化能分别为102.38 kJ/mol和81.68 kJ/mol,反应级数分别为0.93和0.91。
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| 关 键 词： | 氰酸酯 氧化石墨烯 固化动力学 活化能 反应级数 |
Influences of graphene oxide on curing kinetics of cyanate ester resin |
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| Gong Chao,Yan Hongxia,Zhang Mengmeng. Influences of graphene oxide on curing kinetics of cyanate ester resin[J]. China Adhesives, 2012, 0(9): 1-4 |
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| Authors: | Gong Chao Yan Hongxia Zhang Mengmeng |
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| Affiliation: | (Department of Applied Chemistry,College of Science,Northwestern Polytechnical University,Xi’an 710129,China) |
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| Abstract: | With self-made GO(graphene oxide) as modifier of BCE(bisphenol A cyanate ester),a corresponding modified resin was prepared.The influences of GO on curing kinetics of BCE were investigated by non-isothermal DSC(differential scanning calorimetry),Kissinger,Crane and heating speed-temperature(β-T) extrapolation.The curing process conditions and kinetic parameters of pure BCE and GO/BCE systems were determined.The results showed that the gelation,curing and post-processing temperatures were 180.0,201.0,221.1 ℃ for pure BCE system and 158.8,195.7,214.3 ℃ for GO/BCE system respectively.The activation energies were 102.38 kJ/mol for pure GO system and 81.68 kJ/mol for GO/BCE system respectively.The reaction orders were 0.93 for pure GO system and 0.91 for GO/BCE system respectively. |
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| Keywords: | cyanate ester graphene oxide(GO) curing kinetics activation energy reaction order |
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