| 尼龙6/蒙脱土纳米复合材料的等温结晶动力学研究 |
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| 引用本文： | 刘立敏,朱晓光,漆宗能.尼龙6/蒙脱土纳米复合材料的等温结晶动力学研究[J].高分子学报,1999(3):274-279. |
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| 作者姓名： | 刘立敏 朱晓光 漆宗能 |
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| 作者单位： | 中国科学院化学研究所工程塑料国家重点实验室,北京,100080 |
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| 摘 要： | 用ＤＳＣ法研究了熔体插层制备的尼龙６／蒙脱土纳米复合材料的等温结晶行为．结果表明，加入少量的蒙脱土可明显提高尼龙６的结晶速率，降低球晶径向生长的单位面积表面自由能．从Ａｖｒａｍｉ方程和Ｈｏｆｍａｎ理论出发，得出蒙脱土纳米粒子的存在可明显改变尼龙６的结晶行为
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| 关 键 词： | 尼龙6，蒙脱土，熔体插层，纳米复合，结晶动力学 |
KINETICS OF ISOTHERMAL CRYSTALLIZATION FOR NYLON 6/MONTMORILLONITE NANOCOMPOSITES |
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| LIU Limin,ZHU Xiaoguang,QI Zongneng.KINETICS OF ISOTHERMAL CRYSTALLIZATION FOR NYLON 6/MONTMORILLONITE NANOCOMPOSITES[J].Acta Polymerica Sinica,1999(3):274-279. |
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| Authors: | LIU Limin ZHU Xiaoguang QI Zongneng |
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| Abstract: | The kinetics of isothermal crystallization of nylon 6/montmorillonite nanocomposites with different content of montmorillonite prepared by melt intercalation process has been investigated by DSC.It is shown that the presence of nanometer montmorillonite particles displays a high propensity to nucleate Nylon 6 crystallization,enhance the crystallization rate of Nylon 6,reduce the surface free energies of the developing crystals and improve the behavior of isothermal crystallization of Nylon 6 dealt with the Avrami and Hoffman theories.The crystallization process of Nylon 6 is composed of two stages:the spherulite growth stage and the spherulite nucleation stage.With the increment of the clay content in the Nylon 6/montmorillonite nanoconposites,the crystallization rate parameter k decreases and the surface free energy of the Nylon 6 crystals increases;the spherulite growth stage would become the main stage of the crystallization process in place of the spherulite nucleation stage.\= |
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| Keywords: | Nylon 6 Montmorillonite Melt intercalation Nanocomposites Crystallization kinetics |
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