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| PET/粘土纳米复合材料加工条件下结晶行为的研究 | |
| 引用本文： | 王亚明,石军,曾伟丽,申长雨.PET/粘土纳米复合材料加工条件下结晶行为的研究[J].工程塑料应用,2003,31(9):50-52. |
| 作者姓名： | 王亚明 石军 曾伟丽 申长雨 |
| 作者单位： | 1. 郑州大学橡塑模具国家工程研究中心,郑州,450002 2. 郑州大学材料工程学院,郑州,450002 3. 北京燕化公司聚酯事业部,北京,102500 |
| 基金项目： | 河南省高校青年骨干教师项目(2001)及河南省教育厅自然科学研究项目(20014300017) |
| 摘 要： | 采用DSC手段测试了PET、PET／粘土纳米复合材料熔体降温时的结晶行为。结果表明，在PET中引入纳米粘土可提高PET基体的降温结晶峰峰温，并使结晶速率提高1倍以上。PET及PET／粘土纳米复合材料的结晶峰峰温随降温速率的增大而移向低温，半结晶时间及结晶度随降温速率的增大而减小。基于Avrami方程的动力学分析表明，PET／粘土纳米复合材料的非等温结晶过程是带有异相成核的三维增长过程。 |
| 关 键 词： | PET 粘土 纳米复合材料 加工条件 结晶行为 聚对苯二甲酸乙二酯 |
| 修稿时间： | 2003年5月15日 |
STUDY ON THE CRYSTALLIZATION BEHAVIOR OF PET/CLAY NANO-COMPOSITE UNDER THE PROCESSING CONDITION |
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| Wang Yaming,Shi Jun,Zeng Weili,Shen Changyu.STUDY ON THE CRYSTALLIZATION BEHAVIOR OF PET/CLAY NANO-COMPOSITE UNDER THE PROCESSING CONDITION[J].Engineering Plastics Application,2003,31(9):50-52. | |
| Authors: | Wang Yaming Shi Jun Zeng Weili Shen Changyu |
| Abstract: | The crystallization behavior of PET and PET/clay nanocomposite under the different cooling rates was studied by DSC. Results showed that, at a given cooling rate, the exotherms peak temperature of PET/clay nano-composite was higher than that of PET, and the crystallization rate of IPET/clay nano-composite was one time faster than that of PET. For both PET and PET/clay nanocomposite, with the increasing of cooling rates, the exotherms peak temperatures moved to lower temperature, meanwhile, the values of half-time and crystallization degree decreased. The kinetics analysis based on Avrami equation suggested that the nonisothermal crystallization of PET/clay nano-composites corresponded to a tridimensional growth with heterogeneous nucleation. |
| Keywords: | poly ( ethylene t erephthalate) clay nano-composite nonisothermal crystallization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |