| 聚氨酯弹性体的动态力学性能的影响因素 |
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| 引用本文： | 刘凉冰.聚氨酯弹性体的动态力学性能的影响因素[J].聚氨酯工业,2004,19(5):1-5. |
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| 作者姓名： | 刘凉冰 |
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| 作者单位： | 山西省化工研究院,太原,030021 |
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| 摘 要： | 综述了聚氨酯弹性体动态力学性能的多种影响因素，讨论了软段类型(聚酯和聚醚)、软段相对分子质量、硬段类型(二异氰酸酯和扩链剂)、硬软段质量分数对PU弹性体动态力学性能的影响。在PU弹性体中，聚酯软段比聚醚软段的Tg高，弹性模量依PPG、PEG、PTMG软段顺序增加。
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| 关 键 词： | 聚氨酯 弹性体 软段 硬段 动态力学性能 动态力学谱 |
| 修稿时间： | 2004年8月27日 |
Influencing Factors of Dynamic Mechanical Properties of Polyurethane Elastomer |
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| Liu Liangbing.Influencing Factors of Dynamic Mechanical Properties of Polyurethane Elastomer[J].Polyurethane Industry,2004,19(5):1-5. |
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| Authors: | Liu Liangbing |
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| Abstract: | Influencing factors of dynamic mechanical properties of polyurethane elastomer were introduced.The effects of types and relative molecular weight of soft segment(polyester, polyether),types(diisocyanates, chain extenders) and mass fraction of hard segment on dynamic mechanical properties of polyurethane elastomer were discussed.The T g of polyester soft segment is higher than of polyether soft segment,and the elastic modulus increases in the order of PPG PEG PTMG in the PU elastomer. |
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| Keywords: | polyurethane elastomer soft segment hard segment dynamic mechanical properties dynamic mechanical analysis |
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