Electrical conductivity behaviour of chemical functionalized MWCNTs epoxy nanocomposites

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Abstract

Few attempt to study the effects of chemical functionalized carbon nanotubes (CNTs) on the electrical conductivity of nanocomposites, instead to increase dispersion and interfacial bonding strength between CNTs and polymer matrix for improvement of mechanical properties. Therefore, in this study the electrical conductivity of two types' chemical functionalized (Carboxylated and Octadecylated) multi-walled carbon nanotubes (MWCNTs), non ionic surfactant additive MWCNTs and as produced MWCNTs epoxy nanocomposites are investigated as function of MWCNTs concentration. As produced MWCNTs and surfactant additive MWCNTs nanocomposites gave higher electrical conductivity than functionalized MWCNTs nanocomposites. However, chemical functionalization of MWCNTs significantly decreased the electrical conductivity of nanocomposites. This behaviour is further investigated through image analysis of powder CNTs and formation electrical conductive pathway network under applied electric field. It can be deduced that the chemically functionalized MWCNTs through severe acidic treatment are not suitable for electrical applications.

Original languageEnglish
Pages (from-to)13-21
Number of pages9
JournalEuropean Journal of Scientific Research
Volume29
Issue number1
Publication statusPublished - 2009

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carbon nanotubes
nanocomposites
Nanocomposites
Multi-walled Carbon Nanotubes
Electric Conductivity
Carbon Nanotubes
Epoxy
Electrical Conductivity
epoxides
electrical conductivity
Carbon nanotubes
Nanotubes
Carbon
Surfactant
Surface-Active Agents
surfactant
carbon nanotube
chemical
Functionalization
attachment behavior

Keywords

  • Chemical functionalizations
  • Conductive polymer composite
  • Nano material filler

ASJC Scopus subject areas

  • General

Cite this

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abstract = "Few attempt to study the effects of chemical functionalized carbon nanotubes (CNTs) on the electrical conductivity of nanocomposites, instead to increase dispersion and interfacial bonding strength between CNTs and polymer matrix for improvement of mechanical properties. Therefore, in this study the electrical conductivity of two types' chemical functionalized (Carboxylated and Octadecylated) multi-walled carbon nanotubes (MWCNTs), non ionic surfactant additive MWCNTs and as produced MWCNTs epoxy nanocomposites are investigated as function of MWCNTs concentration. As produced MWCNTs and surfactant additive MWCNTs nanocomposites gave higher electrical conductivity than functionalized MWCNTs nanocomposites. However, chemical functionalization of MWCNTs significantly decreased the electrical conductivity of nanocomposites. This behaviour is further investigated through image analysis of powder CNTs and formation electrical conductive pathway network under applied electric field. It can be deduced that the chemically functionalized MWCNTs through severe acidic treatment are not suitable for electrical applications.",
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AU - Sulong, Abu Bakar

AU - Muhamad, Norhamidi

AU - Sahari, Jaafar

AU - Ramli, Rizauddin

AU - Md Deros, Baba

AU - Park, Joohyuk

PY - 2009

Y1 - 2009

N2 - Few attempt to study the effects of chemical functionalized carbon nanotubes (CNTs) on the electrical conductivity of nanocomposites, instead to increase dispersion and interfacial bonding strength between CNTs and polymer matrix for improvement of mechanical properties. Therefore, in this study the electrical conductivity of two types' chemical functionalized (Carboxylated and Octadecylated) multi-walled carbon nanotubes (MWCNTs), non ionic surfactant additive MWCNTs and as produced MWCNTs epoxy nanocomposites are investigated as function of MWCNTs concentration. As produced MWCNTs and surfactant additive MWCNTs nanocomposites gave higher electrical conductivity than functionalized MWCNTs nanocomposites. However, chemical functionalization of MWCNTs significantly decreased the electrical conductivity of nanocomposites. This behaviour is further investigated through image analysis of powder CNTs and formation electrical conductive pathway network under applied electric field. It can be deduced that the chemically functionalized MWCNTs through severe acidic treatment are not suitable for electrical applications.

AB - Few attempt to study the effects of chemical functionalized carbon nanotubes (CNTs) on the electrical conductivity of nanocomposites, instead to increase dispersion and interfacial bonding strength between CNTs and polymer matrix for improvement of mechanical properties. Therefore, in this study the electrical conductivity of two types' chemical functionalized (Carboxylated and Octadecylated) multi-walled carbon nanotubes (MWCNTs), non ionic surfactant additive MWCNTs and as produced MWCNTs epoxy nanocomposites are investigated as function of MWCNTs concentration. As produced MWCNTs and surfactant additive MWCNTs nanocomposites gave higher electrical conductivity than functionalized MWCNTs nanocomposites. However, chemical functionalization of MWCNTs significantly decreased the electrical conductivity of nanocomposites. This behaviour is further investigated through image analysis of powder CNTs and formation electrical conductive pathway network under applied electric field. It can be deduced that the chemically functionalized MWCNTs through severe acidic treatment are not suitable for electrical applications.

KW - Chemical functionalizations

KW - Conductive polymer composite

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