Significance of the Dispersion Stability of Carbon Nanotubes on the Thermal Conductivity of Nylon 610 Nanocomposite |
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| Authors: | Jeongwoo Lee Deok Ryul Hwang Jinho Hong Dongsoo Jung |
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| Institution: | 1. Department of Chemical Engineering , Inha University , Incheon, South Korea;2. Department of Mechanical Engineering , Inha University , Incheon, South Korea |
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| Abstract: | Herein, the effect of the dispersion uniformity of multi-wall carbon nanotubes (MWNTs) on the thermal conductivity of nylon 610/MWNTs nanocomposite was investigated. Compared to raw MWNTs, the carboxylated MWNTs (MWNT-COOH) were well dispersed in aqueous hexamethylenediamine solution and the dispersion stability was further improved by the presence of poly(vinyl alcohol). By means of interfacial polymerization between the aqueous hexamethylenediamine solution containing the MWNTs and a sebacoyl chloride phase, nylon 610/MWNT composites were prepared. It was found that the stable dispersion state of MWNTs in aqueous solutions greatly improved the thermal conductivity of the ultimate nanocomposites. It is noted that the thermal conductivity of nylon 610/MWNT-COOH/PVA nanocomposite was 135% higher than that of nylon 610/raw MWNTs for the same 0.1 wt% content of MWNTs. |
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| Keywords: | Dispersion stability multi-walled carbon nanotube nanocomposite nylon 610 thermal conductivity |
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