| 刚性聚氨酯增韧改性环氧树脂的研究 |
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| 引用本文： | 黄先威,刘竞超,万金涛,彭芝红.刚性聚氨酯增韧改性环氧树脂的研究[J].工程塑料应用,2005,33(2):19-22. |
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| 作者姓名： | 黄先威 刘竞超 万金涛 彭芝红 |
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| 作者单位： | 湘潭大学高分子材料研究所,湘潭,411105;湖南工程学院化学化工系,湘潭,411101;湘潭大学高分子材料研究所,湘潭,411105 |
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| 摘 要： | 在环氧树脂(EP)中加入以对苯二甲酸二甲酯为原料合成的端羟基芳香聚酯及2，4—甲苯二异氰酸酯(TDI)，采用原位聚合法制备了刚性聚氨酯(PUR)增韧改性EP。用红外光谱表征了其反应，探讨了端羟基芳香聚酯含量、端羟基芳香聚酯与TDI摩尔比和固化剂用量对改性EP力学性能的影响，并用扫描电子显微镜观察了改性EP的冲击断面。结果表明，在提高EP韧性的同时，改性EP的其它力学性能都得以提高。
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| 关 键 词： | 环氧树脂 增韧 改性 聚氨酯 对苯二甲酸二甲酯 |
| 修稿时间： | 2004年11月12 |
STUDY OF EPOXY RESIN MODIFIED BY RIGID POLYURETHANE |
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| Huang Xianwei ,Liu Jingchao ,Wan Jintao ,Peng Zhihong.STUDY OF EPOXY RESIN MODIFIED BY RIGID POLYURETHANE[J].Engineering Plastics Application,2005,33(2):19-22. |
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| Authors: | Huang Xianwei Liu Jingchao Wan Jintao Peng Zhihong |
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| Affiliation: | Huang Xianwei 1,2,Liu Jingchao 1,Wan Jintao 1,Peng Zhihong1 |
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| Abstract: | The modified epoxy resin toughened by rigid polyurethane was prepared by in-situ polymerization through adding hydroxy-terminated aromatic polyester synthesized by dimethyl terephthalate, and 2,4-tolylene diisocyanate(TDI) to epoxy resin . The product was characterized by FTIR. The effects of hydroxy-terminated aromatic polyester content,molar ratio of hydroxy-terminated aromatic polyester to TDI, and curing agent content on the mechanical properties of epoxy resin were studied. The impact fractures of modified epoxy resin were observed by SEM. The results showed that the other mechanical properties of modified epoxy resin could be improved while the toughness of epoxy resin was increased. |
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| Keywords: | epoxy resin toughening modification polyurethane dimethyl terephthalate |
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