摘要
聚合物与纤维的界面结合作用对提高复合材料的性能具有重要的作用,文中通过偏光显微镜、扫描电子显微镜等手段研究了尼龙6织布纤维诱导聚己内酯(PCL)的界面结晶行为与性能。结果表明,尼龙6织布纤维对聚己内酯有很强的异相成核能力,促使聚己内酯的片晶垂直于尼龙6纤维轴生长并形成横晶结构,横晶的生长速率随着结晶温度的降低而升高。通过Lauritzen-Hoffman理论方程研究了异相成核诱导聚己内酯横晶动态生长过程和生成横晶的成核参数Kg。界面相互作用增强了纤维与聚己内酯复合材料的粘附性,显著提高了复合材料的拉伸性能。
The interfacial interaction between the polymer and fiber is very important in determining the reinforcement efficiency in the fiber polymer composites. In this paper,the interfacial structures and properties of the nylon 6 fiber / poly（ ε-cprolactone）（ PCL） fiber / matrix composites were studied by polarizing microscope（ POM）,SEM and tensile tests. The nylon-6 fibers is found to be effective in inducing the transcrystallization of PCL and leading to the formation of a transcrystalline PCL layer encircling the nylon-6 fiber. The growth rate of the transcrystallization layer decreases with increasing the crystallization temperature in the desired temperature range. The Lauritzen-Hoffman theory of heterogeneous nucleation was applied to analyze the transcrystallization process and the nucleation constant（ Kg）. It is indicated that the strong interfacial adhesion between PCL and nylon 6 fiber greatly improves the tensile property of the composites.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2016年第5期59-63,共5页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(21204045
21276151)
陕西科技大学学术骨干培育计划
关键词
尼龙6纤维
聚己内酯
界面相互作用
拉伸性能
nylon 6 fiber
poly（ε-cprolactone）
interfacial interactions
tensile property
