화학공학소재연구정보센터
학회 한국고분자학회
학술대회 2012년 가을 (10/11 ~ 10/12, 창원컨벤션센터)
권호 37권 2호
발표분야 고분자가공/복합재료
제목 Effect of multi walled carbon nanotubes (MWNTs)/Silver Powder Content and additives on Electrical Conductivity of MWNT/Ag powder/epoxy three-phase composites.  
초록 The electrical conductivity of oxidized multi walled carbon nanotubes (MWNTs)/Ag powder/epoxy three-phase composites is investigated. In this study the electrical conductivity of two types chemical functionalized (acidic and basic conditions) multi-walled carbon nanotubes is evaluatedThe electrical conductivity of MWNTs oxidized by mixture of H2O2/NH4OH solutions is higher than HNO3/H2SO4 solutions.The electrical conductivity of epoxy composites filled with the oxidized MWNTs is measured by a dielectric analyzer and analyzed using percolation theory.Effect of surfactants and silane coupling agents on electrical properties also measured. Small amount of non-ionic surfactant and glycidoxypropyltrimethoxy silane enhance the conductivity of composites.electrical properties of the composite with different weight percentages of nanotubes have been investigated.
저자 이주영, 서흔영, 윤호규
소속 고려대
키워드 carbon nanotube; electrical properties; hybridization; oxidation
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