首页
最新动态 交流合作 科研项目 论文著作 精彩瞬间 招生招聘
  • Effect of functionalization of multi-walled carbon nanotube on the curing behavior and mechanical property of multi-walled carbon nanotube/epoxy composites
  • 来源:耿宏章教授个人网站 2013-03-27
  • In this work, multi-walled carbon nanotubes (MWCNTs) were functionalized to fabricate MWCNT/epoxy composites by incorporating MWCNTs into an epoxy. Cure behavior of composites was investigated by differential scanning calorimetry. Thermo-mechanical behavior of the composite was then evaluated by dynamic mechanical analysis. Tensile strength, elastic modulus and maximum elongation were obtained by tensile test using the CMT-4204 universal testing machine. A field-emission scanning electron microscope was also used to characterize the fracture mechanism of composites and the dispersion state of MWCNTs in the epoxy. The results showed that the introduction of MWCNTs decreased the activation energy of the reaction and promoted the cure reaction. The addition of MWCNTs, especially amino-functionalized MWCNTs, clearly improved the tensile strength. The functionalized MWCNTs improved the interfacial bonding and made the dispersion of MWCNTs homogeneous in the matrix, giving the composites present a better mechanical property.

  • [来源:中国聚合物网]
  • 了解更多请进入: 耿宏章教授个人网站
相关新闻
  • · Modification of carbon nanotube transparent conducting films for electrodes in organic light-emitting diodes
  • · Purification and dispersion of single-walled carbon nanotubes for transparent conducting films
  • · Optimizing processes of dispersant concentration and post-treatments for fabricating single-walled carbon nanotube transparent conducting films
  • · 碳纳米管/环氧树脂复合材料摩擦磨损性能的研究

关于我们  |  联系我们  

网站:中国聚合物网

polymer.cn Copyright ©2017