期刊
ADVANCED POWDER TECHNOLOGY
卷 21, 期 5, 页码 551-555出版社
ELSEVIER
DOI: 10.1016/j.apt.2010.02.011
关键词
Super-growth carbon nanotubes; Dispersion; Shortening; Ultrasonic treatment; Surfactant
A low-power ultrasonic treatment together with ceramic balls was applied to disperse and shorten supergrowth carbon nanotubes (SG-CNTs) in aqueous solutions containing an anionic surfactant, sodium deoxycholate (SDC) or a polymeric nonionic surfactant, tocopheryl PEG 1000 succinate (TPGS). With this mild treatment, the long tubes of as-received SG-CNTs (>200 mu m) were efficiently and significantly shortened to below about 1 mu m after the treatment. In the same time, the shortened SG-CNTs were well-dispersed in aqueous medium to form stable SG-CNTs solutions containing relatively high SG-CNTs concentration (>0.1% w/v). (C) 2010 The Society of Powder Technology Japan. Published by Elsevier B.V. and The Society of Powder Technology Japan. All rights reserved.
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