| 聚氨酯改性不饱和聚酯树脂的反应动力学 |
| |
| 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].医学教育探索,2009,40(1):60-63. |
| |
| 作者姓名： | 叶蓓 周权 宋宁 倪礼忠 |
| |
| 作者单位： | 华东理工大学材料科学与工程学院;华东理工大学材料科学与工程学院;华东理工大学材料科学与工程学院;华东理工大学材料科学与工程学院 |
| |
| 基金项目： | 天津市科技发展计划（科技工程）资助项目（0333180411） |
| |
| 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。
|
| 关 键 词： | 聚氨酯 不饱和聚酯 固化反应机理 动力学 |
| 收稿时间： | 2008/10/7 0:00:00 |
Kinetics of the Curing of Polyurethane Modified Unsaturated
Polyester Resin |
| |
| CHEN Hui,ZHANG Jin-wei,ZHU He-wei,SONG Zi-lan.Kinetics of the Curing of Polyurethane Modified Unsaturated
Polyester Resin[J].Researches in Medical Education,2009,40(1):60-63. |
| |
| Authors: | CHEN Hui ZHANG Jin-wei ZHU He-wei SONG Zi-lan |
| |
| Institution: | 1.School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300191, China; 2.Tianjin Tasly Modern TCM Resources Co., Ltd, Tianjin 300402, China |
| |
| 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. |
| |
| Keywords: | polyurethane unsaturated polyester curing reaction mechanism kinetics |
|
| 点击此处可从《医学教育探索》浏览原始摘要信息 |
| 点击此处可从《医学教育探索》下载免费的PDF全文 |
