Time-stability Dispersion of Carbon Nanotubes in Chloroform

详细信息    查看全文

• 作者：A.A. Kolesnikova^a ; Yu.S. Eremin^a ; A.M. Grekhov^a ; ^b ; ^{AMGrekhov@mephi.ru" class="auth_mail" title="E-mail the corresponding author}
• 关键词：carbon nanotubes ; dispersion ; sedimentation ; agglomeration ; organic solvents
• 刊名：Physics Procedia
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：72
• 期：Complete
• 页码：51-55
• 全文大小：176 K

文摘

A uniform distribution of carbone nanotubes in a polymer matrix is required for the fabrication of composite materials. Since carbon nanotubes for introduction into polymers are preliminarily dissolved in water or organic solvents, it is necessary to create uniform stable dispersion of carbon nanotubes in solvents.

It has been shown in this work that the concentration of nanotubes is a critical parameter determining the stability and composition of a solution. The kinetics of agglomeration of multiwalled carbon nanotubes dispersed in chloroform by means of sonication has been studied by the methods of optical spectroscopy and dynamic light scattering. It has been shown that such solutions can be stable for a long time at concentrations of nanotubes below 0.01 wt %.