| 聚氨酯/有机蒙脱土纳米复合材料的合成与表征 |
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| 引用本文： | 徐荣静,张新敏.聚氨酯/有机蒙脱土纳米复合材料的合成与表征[J].合成橡胶工业,2003,26(6):351-354. |
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| 作者姓名： | 徐荣静 张新敏 |
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| 作者单位： | 河南石油勘探局,炼化处,河南,南阳,473132 |
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| 摘 要： | 采用共沸法精制有机蒙脱土，估算了有机蒙脱土中吸附水质量分数约为8．3％。结构水的质量分数约为4．1％。用两步法原位聚合制备了聚氨酯／有机蒙脱土(PU／MMT)纳米复合材料，表征了纳米复合材料的形态、动态力学性能和物理机械性能。结果表明，有机蒙脱土对聚氨酯有增强和增韧双重作用。有机蒙脱土对聚合物分子的限制作用使PU／MMT纳米复合材料的玻璃化转变温度升高，储能模量和损耗模量也有明显提高。
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| 关 键 词： | 有机蒙脱土 聚氨酯 纳米复合材料 形态 物理机械性能 |
| 文章编号： | 1000-1255(2003)06-0351-04 |
Synthesis and characterization of polyurethane/organomontmorilionite nanocomposites |
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| Xu Rongjing,Zhang Xinmin.Synthesis and characterization of polyurethane/organomontmorilionite nanocomposites[J].China Synthetic Rubber Industry,2003,26(6):351-354. |
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| Authors: | Xu Rongjing Zhang Xinmin |
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| Abstract: | The water absorption of organo-montmorillonite (MMT)was studied using TGA and FTIR, and MMT was refined by boiling with toluene. PU/MMT nanocomposites were synthesized,its morphology, thermal dynamic mechanical properties and tensile behavior were investigated by DMTA .It was found that the intercalated PU/MMT was reinforced and toughened with the addition of nanometer MMT layers. The interaction between PU and MMT increased the T g, storage modulus and loss modulus of PU/MMT. |
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| Keywords: | organo-montmorillonite polyurethane nanocomposite morphology mechanical property |
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