Effects of surface modification on the dispersion and electrical conductivity of carbon nanotube/polyaniline composites

Park, Ok-Kyung; Jeevananda, T.; Kim, Nam Hoon; Kim, Seong-il; Lee, Joong Hee

doi:10.1016/j.scriptamat.2008.12.005

Cited by 119 publications

(47 citation statements)

References 23 publications

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“…Sulong et al (2009) showed that incorporation of acid and octadecylated functionalized MWCNT in epoxy matrix decreased the electrical conductivity of nanocomposites. Similar results have also been reported by Park et al (2009). Hence, it is important to optimize the modification condition or reagent to achieve minimum deterioration of electronic properties of CNTs.…”

Section: Electrical Properties Of Cnt/polymer Nanocompositessupporting

confidence: 86%

Polymer/Carbon Nanotube Nanocomposites

Choudhary¹,

Gupta²

2011

Carbon Nanotubes - Polymer Nanocomposites

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Section: Electrical Properties Of Cnt/polymer Nanocompositessupporting

confidence: 86%

Polymer/Carbon Nanotube Nanocomposites

Choudhary¹,

Gupta²

2011

Carbon Nanotubes - Polymer Nanocomposites

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“…However, this method causes the defects in the intrinsic structure of the carbon materials; thus, the thermal and electrical conductivity of epoxy composites filled with carbon materials that are modified by strong acids become poor [17][18][19]. Unlike this method, surface modification of carbon materials using silane coupling agents (silanization) can minimize the defects of the carbon material structure [16].…”

Section: Characterizationmentioning

confidence: 99%

Effect of surface treatment of graphene nanoplatelets for improvement of thermal and electrical properties of epoxy composites

Kim¹,

Kim²,

Baeck³

et al. 2015

Carbon letters

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In this study, in order to improve the thermal and electrical properties of epoxy/graphene nanoplatelets (GNPs), surface modifications of GNPs are conducted using silane coupling agents. Three silane coupling agents, i.e. 2-(3,4-epoxycyclohexyl)-ethyltrimethoxysilane (ETMOS), 3-glycidoxypropyltriethoxysilane (GPTS), and 3-glycidoxypropyltrimethoxysilane (GPTMS), were used. Among theses, GPTMS exhibits the best modification performance for fabricating GNP-incorporated epoxy composites. The effect of the silanization is evaluated using transmission electron microscopy (TEM), scanning electron microscopy, thermogravimetric analysis, and energy dispersive X-ray spectroscopy. The electrical and thermal conductivities are characterized. The epoxy/silanized GNPs exhibits higher thermal and electrical properties than the epoxy/raw GNPs due to the improved dispersion state of the GNPs in the epoxy matrix. The TEM microphotographs and Turbiscan data demonstrate that the silane molecules grafted onto the GNP surface improve the GNP dispersion in the epoxy.

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“…The coexistence of PANI with rGO in the PANI-rGO organogels increased the range of PANI concentrations in stable gel specimen compared with the PANI organogels. Some researchers reported that some kind of interaction between carbon nanotubes (CNTs) and conducting polymers was shown by the shifts in FT-IR spectra [36][37][38][39][40][41], while no interaction between CNT and PANI was found by others [42]. Recently, H. Wang et al reported that there were hydrogen bonding, electrostatic interactions, and π-π stacking in the GO/PANI composite [43].…”

Section: Preparation Of Composite Organogelmentioning

confidence: 99%

Easy preparation of graphene-based conducting polymer composite via organogel

Kuwahara

Hashimoto

et al. 2015

Colloid Polym Sci

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A highly electrically conducting graphene (reduced graphene oxide, rGO)-based polymer composite was successfully prepared via organogels using an organically dispersible polyaniline (PANI) and a low molecular-weight organogelator consisting of cholesterol derivatives. The plain gel was prepared by heat treatment of a mixture of toluene and the organogelator. PANI-rGO organogel was prepared by adding PANI and rGO to the plain gel and mixing them. Microscopic studies established that organogelators formed threedimensional networks and that the PANI aggregates and rGO particles were dispersed within the organogels. Viscoelastic measurements demonstrated that the PANI-rGO organogel showed rapid and repeatedly thixotropic behavior. BDried^PANI-rGO composites showed high electrical conductivity. A ballpoint pen was filled with the PANI-rGO organogel and used to produce lines similar to the ones produced by commercially available ballpoint pen. The line showed electrical conductivity. The novel PANI-rGO composite shows high electrical conductivity through easy preparation, one which is just like mixing.

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Effects of surface modification on the dispersion and electrical conductivity of carbon nanotube/polyaniline composites

Cited by 119 publications

References 23 publications

Polymer/Carbon Nanotube Nanocomposites

Polymer/Carbon Nanotube Nanocomposites

Effect of surface treatment of graphene nanoplatelets for improvement of thermal and electrical properties of epoxy composites

Easy preparation of graphene-based conducting polymer composite via organogel

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