| 聚甲醛/蒙脱土纳米复合材料非等温结晶动力学研究 |
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| 引用本文： | 徐卫兵a,b,戈明亮b,何平笙a.聚甲醛/蒙脱土纳米复合材料非等温结晶动力学研究[J].应用化学,2001,18(9):0-0. |
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| 作者姓名： | 徐卫兵a b 戈明亮b 何平笙a |
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| 作者单位： | [1]中国科学技术大学高分子系，合肥 [2]合肥工业大学化工学院，合肥230009 |
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| 基金项目： | 安徽省自然科学基金项目 ( 990 46317) |
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| 摘 要： | 聚甲醛/蒙脱土纳米复合材料非等温结晶动力学研究
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| 关 键 词： | 聚甲醛/蒙脱土纳米复合材料非等温结晶动力学研究 |
| 收稿时间： | 2009-06-29 |
| 修稿时间： | 2009-06-29 |
Nonisothermal Crystallization Kinetics of Polyoxymethylene/Montmorillonite Nanocomposites |
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| XU Wei Bing a,b ,GE Ming Liang b,HE Ping Sheng a.Nonisothermal Crystallization Kinetics of Polyoxymethylene/Montmorillonite Nanocomposites[J].Chinese Journal of Applied Chemistry,2001,18(9):0-0. |
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| Authors: | XU Wei Bing a b GE Ming Liang b HE Ping Sheng a |
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| Institution: | XU Wei Bing a,b *,GE Ming Liang b,HE Ping Sheng a |
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| Abstract: | Polyoxymethylene/organo montmorillonite (POM/Mont) nanocomposites were prepared by melt direct intercalation, and the basal spacing of montmorillonite was detected by X ray diffractometer(XRD). The nonisothermal crystallization kinetics of polyoxymethylene(POM) and POM/Mont nanocomposite were investigated by differential scanning calorimetry(DSC). The Jeziorny, Ozawa and Liu methods were employed to analyze the DSC data. The results showed that both Jeziorny and Liu methods could describe this system very well. The activation energies evaluated by Cebe method were 334 6 kJ/mol and 196 9 kJ/mol for the nonisothermal crystallization of POM and POM/Mont nanocomposite, respectively. Intercalation of organic montmorillonite into POM decreased its activation energy and half time of crystallization, playing a role as a nucleating agent for nonisothermal crystallization of POM. |
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| Keywords: | polyoxymethylene montmorillonite nanocomposite nonisothermal crystallization kinetics |
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