Effects of Plasma and Acid Treatment on the Dispersion of Carbon Nanotubes in Liquids |
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| Authors: | Yin Jiang Yue-Feng Zhu Feng-Ying Wang Wen-Jia Chen |
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| Institution: | (1) Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Department of Mechanical Engineering, Tsinghua University, Beijing, 100084, People’s Republic of China; |
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| Abstract: | Carbon nanotubes (CNTs) with different diameters were treated by plasma and acid. The CNTs were dispersed in water and the
light transmittance of the CNTs dispersoid (the mixture of CNTs and water) was measured to characterize the dispersibility
of CNTs. With the light transmittance of water as the baseline, relative transmittance (RT) of CNTs dispersoid was calculated
and the curves of RT varying with time were fitted with a function. The effects of CNTs diameter, acid treatment and plasma
treatment on the dispersion of CNTs in water were studied according to the fitting results. It could be concluded that the
dispersibility of the CNTs with bigger diameters was better. Plasma treatment could improve the dispersibility of CNTs and
if the CNTs were acid-treated, plasma treatment could improve their dispersibility further. |
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