| 聚氨酯改性TDE-85/E-51环氧树脂的固化反应机理 |
| |
| 引用本文： | 李芝华,卢健体,丑纪能.聚氨酯改性TDE-85/E-51环氧树脂的固化反应机理[J].高分子材料科学与工程,2009(11). |
| |
| 作者姓名： | 李芝华 卢健体 丑纪能 |
| |
| 作者单位： | 有色金属材料科学与工程教育部重点实验室中南大学材料科学与工程学院; |
| |
| 基金项目： | 国家新材料科技攻关项目(MKPT-04-388) |
| |
| 摘 要： | 以混合芳胺为固化剂,通过聚氨酯(PU)对4,5-环氧环己烷-1,2-二甲酸二缩水甘油酯(TDE-85)与二酚基丙烷缩水甘油醚(E-51)环氧树脂的混合树脂体系(EP)的改性,制备得到了一种高性能聚氨酯改性环氧树脂(PU/EP)。通过对材料样品结构的红外光谱表征,探讨了PU/EP的固化反应机理。研究结果表明,PU预聚体与1,4-丁二醇(1,4-BDO)及三羟甲基丙烷(TMP)发生了扩链、交联反应得到PU交联聚合物网络,TDE-85/E-51环氧树脂与混合芳胺固化剂反应生成了交联环氧聚合物。EP与PU之间存在的化学接枝、交联反应,提高了EP与PU之间的相容性及共混程度。
|
| 关 键 词： | 聚氨酯 环氧树脂 固化反应机理 |
Curing Mechanism of TDE-85/E-51 Resin Modified by Polyurethane |
| |
| LI Zhi-hua,LU Jian-ti,CHOU Ji-neng.Curing Mechanism of TDE-85/E-51 Resin Modified by Polyurethane[J].Polymer Materials Science & Engineering,2009(11). |
| |
| Authors: | LI Zhi-hua LU Jian-ti CHOU Ji-neng |
| |
| Affiliation: | LI Zhi-hua,LU Jian-ti,CHOU Ji-neng (Key Laboratory of Nonferrous Metal Materials Science and Engineering of Ministry of Education,School of Materials Science and Engineering,Central South University,Changsha 410083,China) |
| |
| Abstract: | With polyurethane(PU) modification of the epoxy resin(EP) blend of phenol-based epoxy propane(E-51) and diglycidyl-4,5-epoxycyclohexane-1,2-dicarboxylate(TDE-85),the modified epoxy resin system(PU/EP) was formed using mixed aromatic amine as curing agent.By the infrared spectrum analysis,the curing mechanism of the PU/EP system was discussed.The results indicate that the polyurethane networks are formed by the reactions of chain-extending and cross-linking.The reaction of chain-extending generates between p... |
| |
| Keywords: | polyurethane epoxy resin curing mechanism |
| 本文献已被 CNKI 等数据库收录！ |
|
