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聚四氟乙烯/聚苯酯复合材料非等温结晶动力学研究
引用本文:郑振超寇开昌张冬娜. 聚四氟乙烯/聚苯酯复合材料非等温结晶动力学研究[J]. 中国塑料, 2014, 28(3): 33-39. DOI: 10.19491/j.issn.1001-9278.2014.03.008
作者姓名:郑振超寇开昌张冬娜
作者单位:西北工业大学理学院应用化学系西北工业大学西北工业大学理学院
摘    要:通过冷压烧结的方法制备了聚四氟乙烯/聚苯酯(PTFE/POB)复合材料。采用差示扫描量热法(DSC)研究了PTFE/POB复合材料的非等温结晶行为,并利用Jeziorny法对所得DSC数据进行分析。结果表明,随着冷却速率的增加,结晶峰向低温方向移动,结晶温度范围增大,结晶度下降;Jeziorny方程能够较好地描述PTFE/POB复合材料的非等温结晶动力学;POB有异相成核作用,改善了PTFE的结晶性能,提高了PTFE的结晶速率。

关 键 词:非等温结晶  结晶速率  聚四氟乙烯  聚苯酯  动力学  
收稿时间:2013-08-05

Study on Non-Isothermal Crystallization Kinetics of PTFE/POB Composites
Zheng Zhen-Chao. Study on Non-Isothermal Crystallization Kinetics of PTFE/POB Composites[J]. China Plastics, 2014, 28(3): 33-39. DOI: 10.19491/j.issn.1001-9278.2014.03.008
Authors:Zheng Zhen-Chao
Abstract:Polytetrafluoroethylene/polybenzoate (PTFE/POB) composites, in which POB particles filled PTFE matrix, were prepared by cold molding and sintering in the air. The non-isothermal crystallization behavior of PTFE/POB composites was studied by differential scanning calorimetry (DSC), and the Jeziorny equation was used to analyze the non-isothermal crystallization kinetics. As the cooling rate increased, peak temperature shifted to a lower temperature, crystallinity temperature the peak became wider, and crystallinity reduced. The addition of POB increased crystallinity and the crystallization rate of PTFE.
Keywords:non-isothermal crystallization  crystallization rate  polytetrafluoroethylene  polybenzoate  kinetics  
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