| 季戊四醇型HTPB-PU弹性体的研究 |
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| 引用本文： | 曹琪,刘朋生. 季戊四醇型HTPB-PU弹性体的研究[J]. 医学教育探索, 2004, 0(2): 256-260 |
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| 作者姓名： | 曹琪 刘朋生 |
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| 作者单位： | 湘潭大学化学学院,湖南湘潭411105 |
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| 摘 要： | 以端羟基聚丁二烯、液化改性MDI为原料，季戊四醇为扩链剂与交联剂制备季戊四醇型聚氨酯，并用IR、TG、DSC和SEM对其进行表征；研究了影响季戊四醇型聚氨酯的力学性能和热性能的因素。结果表明：随扩链剂用量的增大，季戊四醇型聚氨酯的拉伸强度和硬度增大，而断裂伸长率减小，同时热稳定性得到提高。SEM显示此弹性体中存在明显的相分离。
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| 关 键 词： | 季戊四醇型HTPB-PU弹性体 热性能 力学性能 聚丁二烯 聚氨酯 |
| 修稿时间： | 2003-11-03 |
Studies of HTPB-PU Elastomers with Extender Pentaerythrite |
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| CAO Qi,LIU Peng-sheng. Studies of HTPB-PU Elastomers with Extender Pentaerythrite[J]. Researches in Medical Education, 2004, 0(2): 256-260 |
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| Authors: | CAO Qi LIU Peng-sheng |
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| Abstract: | By using hydroxyl-terminated polybutadiene (HTPB), liquid-modified 4,4'-methylenebis (phenyl isocyanate) as raw materials and pentaerythrite as extender or crosslinking agent, polybutadiene-based polyurethane elastomers (HTPB-PU) were synthesized. The mod |
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| Keywords: | hydroxyl-terminated polybutadiene liquefaction modified 4 4'-methylenebis ( phenyl isocyanate) pentaerythrite ultrasonic dispersion mechanical properties |
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