| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a carbon nanotube (CNT) dispersion liquid in which CNT is uniformly dispersed in a required solvent and which has required concentration even when a step of drying so as to measure the weight of CNT between a step of treating surface so as to improve dispersibility of the CNT and a step of dispersing CNT is removed. <P>SOLUTION: The method for producing a dispersion liquid in which carbon nanotubes are uniformly dispersed in the prescribed solvent includes following steps: a first step of treating surfaces of the carbon nanotubes in untreated carbon nanotube dispersion liquid so as to improve dispersibility of carbon nanotubes in the solvent; a second step of pouring the solvent to an aqueous solution thereby substituting water content on the surface of the carbon nanotubes to the solvent after the first step; a third step of dispersing carbon nanotubes in the solvent thereby obtaining the carbon nanotube dispersed liquid after the second step; a fourth step of measuring the concentration of carbon nanotubes in the carbon nanotube dispersed liquid by absorptiometry after the third step. <P>COPYRIGHT: (C)2013,JPO&INPIT |
