尼龙6/石墨复合材料非等温结晶动力学研究  

Non-isothermal Crystallization Kinetics of Polyamide 6/Graphite Composites

作　　者：李建广[1] 颜春[1] 李红周[1] 张笑晴[1] 祝颖丹[1] 范欣愉[1] 

机构地区：[1]中国科学院宁波材料技术与工程研究所,浙江宁波315201

出　　处：《塑料工业》2013年第1期67-71,86,共6页China Plastics Industry

基　　金：中国科学院知识创新工程重要方向项目(KGCX2-EW-210);863计划项目(2012AA03A206);宁波市攻关项目(2011B1015);宁波市自然科学基金(2012A610090)

摘　　要：采用差示扫描量热法(DSC)研究了不同石墨含量的尼龙6(PA6)/石墨(Gr)复合材料的非等温结晶行为,运用Avrami方程确定其非等温结晶动力学参数,发现Avrami方程可以很好地描述PA6/Gr复合材料的非等温结晶过程。当石墨含量增加时,PA6/Gr复合材料的结晶放热曲线出现双峰,结晶速率略有提高,但均低于纯PA6树脂的结晶速率。同时,石墨的加入导致复合材料的结晶度减小,而且随着石墨含量的增加,其结晶度逐渐降低。The non-isothermal crystallization behaviors of polyamide 6 （ PA6 ）/graphite （Gr） composites with different graphite content were investigated by DSC. The Avrami equation was used for determining the non-isothermal crystallization kinetic parameters of neat PA6 and its composites. It was found that the Avrami equation can provide an adequate description of the non-isothermal crystallization process of both the neat PA6 and the PA6/Gr composites. As graphite content increased, a double peaks appeared in the crystallization exothermic diagram of PA6/Gr composites and the crystallization rate increased slightly. However, the crystallization rate of composites obtained was lower than that of the neat PA6. In addition, the degree of crystallinity of PA6/Gr composites decreased with the increase of graphite content.

关 键 词：尼龙6 石墨 复合材料 非等温结晶动力学 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]