Proceedings of the Korean Society For Composite Materials Conference (한국복합재료학회:학술대회논문집)

The Korean Society for Composite Materials (한국복합재료학회)
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Effect of Surface Modificaion on the Rheology and Property of CNTs/Epoxy Nanocomposites

표면 개질된 탄소나노튜브/에폭시 나노복합재료의 유변학적 거동과 물성

  • Kim Jin Ah (School of Material Science and Engineering, Seoul National University) ;
  • Seong Dong Gi (School of Material Science and Engineering, Seoul National University) ;
  • Youn Jae Ryoun (School of Material Science and Engineering, Seoul National University)
  • Published : 2004.10.01
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Abstract

Multi-walled carbon nanotubes (MWNTs) produced by chemical vapor deposition were treated with acidic solution for purification and oxidization of CNTs. The surface modification of the oxidized CNTs was achieved by amine treatment and oxygen plasma treatment. The functionalized CNTs were embedded in the epoxy resin by sonication method and the resulting composite was investigated by FESEM. Rheological and mechanical properties of nanocomposites were measured by AR2000 and Instron. The rheological properties and dispersion of modified CNTs/epoxy composites were improved as CNTs were modified, because the modification of CNTs led to a improvement interaction between the CNTs and the epoxy resin. In addition to this, mechanical properties are also improved because of the effective stress transfer between the CNTs and the polymer.

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