| PP/Talc复合材料的非等温结晶动力学 |
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| 引用本文： | 杨华明,曹建红,胡岳华,敖伟琴,邱冠周.PP/Talc复合材料的非等温结晶动力学[J].高分子材料科学与工程,2004,20(4):173-176. |
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| 作者姓名： | 杨华明 曹建红 胡岳华 敖伟琴 邱冠周 |
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| 作者单位： | 中南大学资源生物学院无机材料系,湖南,长沙,410083;中南大学资源生物学院无机材料系,湖南,长沙,410083;中南大学资源生物学院无机材料系,湖南,长沙,410083;中南大学资源生物学院无机材料系,湖南,长沙,410083;中南大学资源生物学院无机材料系,湖南,长沙,410083 |
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| 基金项目： | 湖南省优秀博士学位论文基金资助项目(200114) |
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| 摘 要： | 用差示扫描量热法(DSC)研究聚丙烯(PP)及PP／Talc复合材料的非等温结晶过程，加入滑石粉后，PP／Talc的结晶速率、结晶度得到明显提高。结合Avrami和Ozawa方程得出一个适合于非等温的结晶动力学方程，并由此获得PP／Talc复合材料的非等温结晶动力学参数，计算表明Talc能促进PP材料的结晶。
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| 关 键 词： | 聚丙烯/滑石粉复合材料 非等温结晶 结晶度 结晶速率 |
| 文章编号： | 1000-7555(2004)04-0173-04 |
| 修稿时间： | 2003年6月18日 |
NON-ISOTHERMAL CRYSTALLIZATION KINETICS OF POLYPROPYLENE/TALC COMPOSITES |
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| YANG Hua-ming,CAO Jian-hong,HU Yue-hua,AO Wei-qin,QIU Guan-zhou.NON-ISOTHERMAL CRYSTALLIZATION KINETICS OF POLYPROPYLENE/TALC COMPOSITES[J].Polymer Materials Science & Engineering,2004,20(4):173-176. |
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| Authors: | YANG Hua-ming CAO Jian-hong HU Yue-hua AO Wei-qin QIU Guan-zhou |
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| Abstract: | The non-isothermal kinetics of polypropylene/talc (PP/Talc) composites and polypropylene (PP) were investigated by using differential scanning calorimetry(DSC). The crystallization rate and the relative crystallization degree of PP/Talc composites is higher than those of pure PP, which causes the change of growing way for crystal nucleus and is advantageous to the processing and properties for PP/Talc composites. A new kinetic equation of non-isothermal crystallization was obtained by combining Avrami and Ozawa equations. Kinetic parameters of the new equation were calculated. The results indicate that talc actually acts as a nucleating agent for PP/talc composites and the modified talc can especially promote the comprehensive property. |
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| Keywords: | polypropylene/talc composites non-isothermal crystallization kinetics crystallization degree crystallization rate |
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