Chemical Treatment and Dispersant Characteristics of CNTs Particle and its Applications on Nanofluid

Abstract:

The present study aimed to evaluate simple, efficient approach to improve dispersion and electrical conductivity of nanofluid. In this study, chemical treatment and dispersion technique used to develop the dispersion and electrical conductivity of MWCNTs in aqueous. The surface of MWCNTs was modified by chemical oxidation with potassium persulfate/sodium hydroxide (K₂S₂O₈/NaOH) to achieve more hydrophilic MWCNTs. NC (nanoCellulose) used as the dispersion for nanofluid. As a result, dispersion characteristics examined by UV-Visible spectrophotometer revealed that best dispersion of MWCNTs obtained for chemically modified MWCNTs with K₂S₂O₈/NaOH. From the electrical conductivity measurement, chemically treated MWCNTs with dispersant showed highest conductivity 210μS/cm. With the overall results, chemical treatment and dispersion method can play significant role in improving the dispersion and electrical conductivity of MWCNTs nanofluids.

• Periodical: Key Engineering Materials (Volume 801)
• Pages: 187-192
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.801.187
• Online since: May 2019
• Authors: Se Dong Kim*, Joo Hyeon Bae, Jun Hyo Kim, Sunchul Huh, Jung Pil Noh, Hyo Min Jeong
• Keywords: Chemical Treatment, CNTs, Dispersion, Electrical Conductivity, Nano Cellulose

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