Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2008.06a
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- Pages.203-204
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- 2008
The effect of surfactants on the dispersion of Multi-walled carbon nanotube in organic solvent
계면활성제 종류에 따른 Mullti-walled carbon nanotube의 유기용매 분산 효과
- Lee, Bong-Seok (Korea Univ.) ;
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Kim, Won-Jung
(Korea Univ.)
;
- Kim, Tea-Young (Korea Univ.) ;
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Suh, Kwang-S.
(Korea Univ.)
- Published : 2008.06.19
Abstract
Using various surfactants, multi-walled carbon nanotube (MWNT) was dispersed in organic solvent, isopropylalcohol(IPA). To refine the MWNT and give the functional group, MWNT was treated with sulfuric acid/nitric acid(v/v=3/1). The cationic, nonionic and anionic surfactants were used as MWNT dispersion agents in the organic solvent. Dispersion effect of various surfactants was observed by optical microscope and HR-TEM. Surface resistivities of MWNT dispersions were measured after coating on PET film. MWNT was dispersed well by poly vinyl pyrrolidone(PVP), nonionic surfactant.