| PTFE/SGM复合材料熔融结晶行为的研究 |
| |
| 引用本文： | 王志超,寇开昌,张东娜,晁敏,毕辉.PTFE/SGM复合材料熔融结晶行为的研究[J].航空材料学报,2009,29(4):67-71. |
| |
| 作者姓名： | 王志超 寇开昌 张东娜 晁敏 毕辉 |
| |
| 作者单位： | 西北工业大学,理学院应用化学系,西安,710072 |
| |
| 摘 要： | 采用差示扫描量热法(DSC)研究了实心玻璃微珠(Solid Glass Microsplaere)含量对聚四氟乙烯/实心玻璃微珠(PTFE/SGM)复合材料熔融结晶行为的影响,并通过Jeziomy法研究了该复合材料的非等温结晶动力学.结果表明:当SGM含量为15%时,PTFE/SGM复合材料的结晶度达到极大值;SGM对PTFE有异相成核作用,提高了PTFE的结晶速率;SGM含量对PTFE/SGM复合材料的结晶温度没有规律性影响;Jeziorny法可以用于分析PTFE/SGM复合材料的非等温结晶动力学过程;PTFE采取多种结晶机理进行阶段性结晶,而且SGM含量的变化不会改变PTFE的结晶机理.
|
| 关 键 词： | 聚四氟乙烯 实心玻璃微珠 差示扫描量热法 熔融结晶 |
Studies on Behavior of Melt Crystallization of PTFE/SGM Composites |
| |
| WANG Zhi-chao,KOU Kai-chang,ZHANG Dong-na,CHAO Min,BI Hui.Studies on Behavior of Melt Crystallization of PTFE/SGM Composites[J].Journal of Aeronautical Materials,2009,29(4):67-71. |
| |
| Authors: | WANG Zhi-chao KOU Kai-chang ZHANG Dong-na CHAO Min BI Hui |
| |
| Abstract: | Effects of SGM content in PTFE/SGM composites on behavior of melt crystallization were studied by differential scanning calorimetry(DSC).The Jeziorny equation was used to describe the non-isothermal crystallization process of PTFE/SGM composites.The results show that the crystallinity of PTFE composites reaches a maximum value as the content of SGM increases up to 15%.The SGM exhibited a remarkable heterogeneous nucleation activity and enhanced the crystallization rate of PTFE/SGM composites.The regular inf... |
| |
| Keywords: | polytetrafluoroethylene solid glass microsphere DSC melt crystallization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
