中国塑料 ›› 2009, Vol. 23 ›› Issue (01): 18-23 .DOI: 10.19491/j.issn.1001-9278.2009.01.004

• 材料与性能 • 上一篇    下一篇

碳纳米管的表面修饰及其对环氧树脂热性能的影响研究

马传国,于英俊,张 鹏   

  1. 桂林电子科技大学信息材料科学与工程系,广西 桂林 541004
  • 收稿日期:2008-10-06 修回日期:1900-01-01 出版日期:2009-01-26 发布日期:2009-01-26

Study on Surface Modification of Carbon Nanotubes and Their Influence on Thermal Properties of Epoxy Resin

MA Chuan-guo, YU Ying-jun, ZHANG Peng   

  1. Department of Informational Material Science and Engineering, Guilin University of Electronic Technology, Guilin 541004, China
  • Received:2008-10-06 Revised:1900-01-01 Online:2009-01-26 Published:2009-01-26
  • Contact: MA Chuan-guo

摘要: 先后利用Fenton试剂和缩水甘油氧丙基硅烷偶联剂(KH560)对碳纳米管(CNTs)进行表面修饰,制备了不同种类的环氧树脂(EP)/CNTs复合材料并对其性能进行了研究。结果表明:CNTs经过Fenton试剂处理后,其表面成功引入羟基,进一步用KH560修饰后成功地引入了环氧基官能团。Fenton试剂的组成可以有效控制羟基基团的数目,并进一步决定环氧基官能团的数目。单独采用Fenton试剂处理或Fenton试剂和KH560共同处理都可以改善CNTs的分散性能,提高EP/CNTs复合材料的玻璃化温度(Tg)和热稳定性能,但后者的处理效果更好。

关键词: 碳纳米管, 表面修饰, 环氧树脂, 复合材料

Abstract: Carbon nanotubes (CNTs) were surface modified first with Fenton reagent and then with a glycidyl oxygen propyl silane coupling agent. Thus modified CNTs were introduced into epoxy resins (EP), and the properties of the composites were investigated. It showed that hydroxyl and epoxy groups were introduced onto the surface of CNTs by Fenton reagent treatment and KH560 modification, respectively. Moreover, the component of Fenton reagent could effectively control the quantities of hydroxyl groups, and further decide the number of epoxy functional groups. The Fenton reagent treatment improved the dispersion of CNTs in EP, the glass transition temperature (Tg) and thermal stability of EP were increased. Such improvement was further enhanced by subsequent modification with coupling agent.

Key words: carbon nanotube, surface modification, epoxy resin, composite