| 聚氨酯改性不饱和聚酯树脂的反应动力学 |
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| 引用本文： | 叶蓓,周权,宋宁,倪礼忠. 聚氨酯改性不饱和聚酯树脂的反应动力学[J]. 功能高分子学报, 2009, 22(1) |
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| 作者姓名： | 叶蓓 周权 宋宁 倪礼忠 |
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| 作者单位： | 华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237;华东理工大学材料科学与工程学院,上海,200237 |
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| 摘 要： | 通过差示扫描量热法(DSC)和傅里叶红外光谱(FT-IR)分析,探讨了聚氨酯改性不饱和聚酯树脂(UPR)体系反应特征及固化反应动力学。结果表明:体系中聚氨酯网络的形成远快于UPR网络的形成。UPR和聚氨酯改性UPR体系的表观活化能分别为58.0 kJ/mol和64.8 kJ/mol,改性后体系的活化能并无较大变化;反应的级数分别为0.90和0.91。
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| 关 键 词： | 聚氨酯 不饱和聚酯 固化反应机理 动力学 |
Kinetics of the Curing of Polyurethane Modified Unsaturated Polyester Resin |
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| YE Bei,ZHOU Quan,SONG Ning,NI Li-zhong. Kinetics of the Curing of Polyurethane Modified Unsaturated Polyester Resin[J]. Journal of Functional Polymers, 2009, 22(1) |
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| Authors: | YE Bei ZHOU Quan SONG Ning NI Li-zhong |
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| Affiliation: | School of Materials Science and Engineering;East China University of Science and Technology;Shanghai 200237;China |
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| Abstract: | The curing characteristic and kinetics analysis of polyurethane modified unsatura-(ted) polyester are studied by DSC and FT-IR.The network of polyurethane is formed much faster than that of unsatura-(ted) polyester.The apparent activation energy of UPR is 58.0 kJ/mol,while that of polyurethane modified UPR is 64.8 kJ/mol.There is no significant difference between the two systems.The reaction order of UPR is 0.90,while that of polyurethane modified UPR is 0.91. |
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| Keywords: | polyurethane unsaturated polyester curing reaction mechanism kinetics |
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