多壁碳纳米管/尼龙6复合材料的液相共混法制备及其性能

基金项目: 长江学者与创新团队发展计划(IRT0972); 国家自然科学基金(20971094); 国家教育部博士点基金资助项目(20101402110007); 山西省国际科技合作项目(2010081017); 山西省自然科学基金(2009011012-4)

Liquid blending preparation and properties of multiwalled carbon nanotubes/polyamide 6 composites

1.
Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China;
2.
College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
3.
Research Center on Advanced Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China

摘要: 通过液相共混法制备了多壁碳纳米管/尼龙6(MWCNTs/PA6)复合材料, 研究了不同MWCNTs改性方法及添加量对复合材料热性能和结晶性能的影响。利用场发射扫描电子显微镜(FESEM)、FTIR、DSC、XRD 和 TG对MWCNTs/PA6复合材料进行表征。结果表明: MWCNTs的加入提高了PA6的热稳定性, 且胺功能化的MWCNTs(d-MWCNTs)表现尤为明显; 当d-MWCNTs的质量分数为7.5%时, MWCNTs/PA6复合材料结晶度从48.09%提高到56.62%, 聚合物大分子之间的缠绕度最低。
- 多壁碳纳米管 /
- 尼龙6 /
- 液相共混法 /
- 热性能 /
- 结晶性能
Abstract: The composites of multiwalled carbon nanotubes/polyamide 6 (MWCNTs/PA6) were fabricated by liquid blending method. The effects of the modification methods and contents of MWCNTs on the thermal and crystal properties of MWCNTs/PA6 composites were studied. The composites were characterized by FESEM, FTIR, DSC, XRD and TG. The results show that the thermal stability of PA6 can be improved through adding MWCNTs, especially amino-functionalized MWCNTs (d-MWCNTs). When the mass fraction of d-MWCNTs reaches 7.5%, the crystallization degree of the MWCNTs/PA6 composites is improved from 48.09% to 56.62% and the entangled degree among polymer macromolecules is the lowest.
- multiwalled carbon nanotubes /
- polyamide 6 /
- liquid blending method /
- thermal property /
- crystal property