Evaluation of carbon nanotubes dispersion in aqueous solution with various dispersing agents
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서지정보
ㆍ발행기관 : 한국탄소학회
ㆍ수록지정보 : Carbon letters / 31권 / 6호
ㆍ저자명 : Youn Kim, Ji Soo Hong, Su Young Moon, Jin‑Yong Hong, Jea Uk Lee
ㆍ저자명 : Youn Kim, Ji Soo Hong, Su Young Moon, Jin‑Yong Hong, Jea Uk Lee
목차
Abstract1 Introduction
2 Experimental
2.1 Materials
2.2 Preparation of CNT aqueous dispersion with dispersing agents
2.3 Characterization
3 Results and discussion
4 Conclusion
Acknowledgements
References
영어 초록
In order to extend the business viability of carbon nanotubes (CNTs), research on CNT dispersion in a solvent as well as in polymer matrix should be established. Herein, three kinds of dispersing agents, sodium deoxycholate (DOC), sodium dodecylbenzene sulfonate (NaDDBS), polyvinyl pyrrolidone (PVP), are selected and applied to quantify the dispersibility and dispersion stability of CNT aqueous dispersion. The dispersibility of CNT dispersion with the PVP, evaluated via viscosity and particle size analyses, are superior to those with the DOC and NaDDBS dispersing agents. CNT aqueous solution dispersed with PVP showed slightly higher viscosity and narrower particle size distribution than those with DOC and NaDDBS dispersing agents. In addition, the dispersion stability of CNT dispersion with the PVP, measured via lumisizer analyses, are superior to those with the DOC and NaDDBS dispersing agents. HR-TEM analysis verifies that the outstanding dispersibility and dispersion stability of CNTs in aqueous solution are due to the effect of the robust polymer wrapping of the PVP dispersing agent on the CNT surface. From the results of this study, the guidelines for the selection of the suitable dispersing agents and the systematic evaluation of dispersibility and dispersion stability of CNT dispersions can be suggested.참고 자료
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