| 蒙脱土填充聚丙烯的等温结晶动力学 |
| |
| 引用本文： | 戈明亮,徐卫兵.蒙脱土填充聚丙烯的等温结晶动力学[J].高分子材料科学与工程,2003,19(6):179-182. |
| |
| 作者姓名： | 戈明亮 徐卫兵 |
| |
| 作者单位： | 1. 华南理工大学聚合物成型装备国家工程研究中心,广东,广州,510460;合肥工业大学化工学院,安徽,合肥,230009
2. 合肥工业大学化工学院,安徽,合肥,230009 |
| |
| 摘 要： | 用示差扫描量热法(DSC)研究蒙脱土对聚丙烯的等温结晶的影响，结果表明，蒙脱土对聚丙烯的结晶起到了异相成核的作用，提高了聚丙烯的结晶速率，结晶一半时的时间tl／2明显缩短，熔点升高，结晶度增大。用Avrami方程进行等温结晶动力学研究，参数n对结晶温度有依赖性，PP／Mont复合材料的k值随温度的升高而减小。
|
| 关 键 词： | 蒙脱土 填充剂 聚丙烯 等温结晶动力学 示差扫描量热法 异相成核 结晶温度 |
| 文章编号： | 1000-7555(2003)06-0179-04 |
| 修稿时间： | 2001年11月20 |
CRYSTALLIZATION PROPERTIES OF POLYPROPYLENE FILLED WITH MONTMORILLONITE |
| |
| GE Ming-liang.CRYSTALLIZATION PROPERTIES OF POLYPROPYLENE FILLED WITH MONTMORILLONITE[J].Polymer Materials Science & Engineering,2003,19(6):179-182. |
| |
| Authors: | GE Ming-liang |
| |
| Affiliation: | GE Ming-liang~ |
| |
| Abstract: | The isothermal crystallization of polypropylene was studied by means of DSC. The result indicates that the addition of montmorillonite decreases the crystallization time of the polypropylene and the melt point is raised, which is used as nucleating agent during isothermal crystallization process of polypropylene. The isothermal crystalline process was described by the Avrami equation and the value of n was related with the crystallization temperature. The value of k of PP/Mont composite was decreased with increasing crystallization temperature. |
| |
| Keywords: | montmorillonite polypropylene the isothermal crystallization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
