| 纳米Al2O3改性聚丙烯的非等温结晶动力学 |
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| 引用本文： | 周红军,李维达,邝维,刘海其. 纳米Al2O3改性聚丙烯的非等温结晶动力学[J]. 合成纤维工业, 2010, 33(6) |
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| 作者姓名： | 周红军 李维达 邝维 刘海其 |
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| 作者单位： | 仲恺农业工程学院化学化工学院,广东,广州,510225;仲恺农业工程学院化学化工学院,广东,广州,510225;仲恺农业工程学院化学化工学院,广东,广州,510225;仲恺农业工程学院化学化工学院,广东,广州,510225 |
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| 摘 要： | 采用差示扫描量热法研究了聚丙烯(PP)及PP/纳米Al_2O_3复合材料的非等温结晶动力学。结果表明:纳米Al_2O_3有异相成核的作用,使PP的结晶峰温升高;PP的半结晶时间随纳米Al_2O_3含量增大而减小;纳米粒子的填充使PP的结晶活化能(△E)增大,含纳米Al_2O_3质量分数为2%的PP的△E最大。
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| 关 键 词： | 聚丙烯 纳米三氧化二铝 非等温结晶动力学 |
Non-isothermal crystallization kinetics of nano-Al2O3 modified polypropylene |
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| Zhou Hongjun,Li Weida,Kuang Wei,Liu Haiqi. Non-isothermal crystallization kinetics of nano-Al2O3 modified polypropylene[J]. China Synthetic Fiber Industry, 2010, 33(6) |
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| Authors: | Zhou Hongjun Li Weida Kuang Wei Liu Haiqi |
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| Abstract: | The non-isothermal crystallization kinetics of polypropylene(PP) and PP/nano-Al_2O_3 composite were studied by differential scanning calorimetry.The results showed that nano-Al_2O_3 contributed a heterogeneous nucleation effect to PP and caused the crystallization peak temperature to rise.The half crystallization time of PP was decreased with the increase of nano-Al_2O_3 content. The addition of nano-Al_2O_3 particles caused the activation energy(△E) of PP to rise,which was maxizized at 2%nano-Al_2O_3 by mass fraction. |
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| Keywords: | polypropylene nano aluminum trioxide non-isothermal crystallization kinetics |
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