第 38 卷第 1 期Vol. 38 No. 1
2008 年 2 月Feb 2008

所属栏目:功能材料

尼龙6/不同分子量的聚苯乙烯寡聚体修饰蒙脱土纳米复合材料的制备与性能测试
邱德跃,苏胜培 (湖南师范大学 化学化工学院,湖南 长沙 410081)
摘 要:将分子量分别为1 400、2 500、5 000的聚苯乙烯长链端基季铵盐改性的蒙脱土(OMMT),与尼龙6(PA6)母料熔融共混,注塑成型制备PA6/OMMT纳米复合材料,讨论不同分子量的聚苯乙烯长链季铵盐有机改性蒙脱土对纳米复合材料性能的影响。对所制得的复合材料通过TGA和热变形测试、弯曲、拉伸和冲击性能等力学性能测试。结果表明:分子量为2 500,蒙脱土含量为3%时的复合材料的热稳定性和综合力学性能较好。
关键词:有机蒙脱土;纳米复合材料;性能
中图分类号:TQ050.4+3  文献标识码:A  文章编号:1009-9212(2008)01- 0056-04
Synthesis and Properties Tests of PA6/OMMT Nanocomposites
QIU De-yue,SU Sheng-pei (College of Chemistry and Chemical Engineering,Hunan Normal University,Changsha 410081,China)
Abstract:Montmorillonite modified by polystyryl quaternary ammonium salts with different molecular weights were prepared through solution intercalation(Mn=1 400,2 500,5 000). And then PA6/OMMT nanocomposites were prepared by melt blending in a twin-screw extruder and injection molding. The effects of molecular weight on the thermal stability and mechanical properties of the obtained PA6/OMMT nanocomposites were investigated. The experimental results from TGA and mechanical testing have indicated that a loading of 3% montmorillonite which was modified by polystyryl quaternary ammoniums at a molecular weight of 2500 has shown remarkable thermal stability and mechanical properties compared to virgin PA6.
Key words:organic modified montmorillonite;nanocomposite;property
基金项目:湖南师范大学潇湘学者启动资金资助课题(化050613)。
作者简介:邱德跃(1977- ),男,湖南永州人,硕士研究生,研究方向为纳米复合材料。(E-mail:qiudeyue@gmail.com)
联 系 人:苏胜培,教授。(E-mail:sushengpei@gmail.com)
收稿日期:2007-11-02