| 纳米凹凸棒土改性聚氨酯纤维的结构与性能 |
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| 引用本文： | 王富军,宇恒星,陈大俊.纳米凹凸棒土改性聚氨酯纤维的结构与性能[J].合成纤维,2007,36(5):8-11,18. |
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| 作者姓名： | 王富军 宇恒星 陈大俊 |
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| 作者单位： | 东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海,200051 |
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| 摘 要： | 以物理共混的方法制备了纳米凹凸棒土(AT)/聚氨酯(PU)共混纤维。通过红外测试表明:AT与PU的硬段发生相互作用,增强了PU链段之间的氢键作用。动态力学性能分析的结果表明:AT可视作为物理交联点,限制了PU分子链的运动。相对于纯PU纤维,纳米AT/PU共混纤维的拉伸力学性能有了明显的提高,热稳定性能也有一定改善。
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| 关 键 词： | 凹凸棒土 聚氨酯纤维 力学性能 热性能 |
| 文章编号： | 1001-7054（2007）05-0008-04 |
| 修稿时间： | 2006-09-292006-10-17 |
Structure and Properties of Polyurethane Fiber Modified by Attapulgite Nanoparticals |
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| WANG Fu-jun,YU Heng-xin,CHEN Da-jun.Structure and Properties of Polyurethane Fiber Modified by Attapulgite Nanoparticals[J].Synthetic Fiber in China,2007,36(5):8-11,18. |
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| Authors: | WANG Fu-jun YU Heng-xin CHEN Da-jun |
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| Affiliation: | College of Materials Science and Engineering, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 200051 |
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| Abstract: | Attapulgite (AT) nanopaticals reinforced polyurethane (PU) fiber was prepared by direct blending. The results of FT-IR demonstrated that AT had an interaction to the carbonyl of hard domain through the hydrogen bonding between molecular chains. The results of DMA showed that AT increased the adhesive force between molecular chains and limited the motion of the polyurethane molecular chains. Compared to the pristine PU, the AT/PU nanocomposites had not only exhibited higher thermal stability properties, but also dramatically improved tensile mechanical properties. |
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| Keywords: | attapulgite polyurethane fiber mechanical properties thermal properties |
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