Purity elevation method of water dispersed carbon nanotube solution by removing surplus dispersion agents and water dispersed carbon nanotube coating solution

摘要

The present invention relates to a method of improving the purity of a water dispersion carbon nanotube (CNT) solution by removing the excess dispersant and to a water dispersion carbon nanotube solution prepared by the method, which is included in the water dispersion carbon nanotube solution Through the removal of the excess dispersant is to improve the purity of the water dispersion carbon nanotube solution. According to the present invention, a raw material dispersion carbon nanotube solution containing an excess dispersant and an organic solvent are mixed to form a mixed solution, and the mixed solution is vortexed to form a surplus dispersant into colloidal particles. When the tube solution and the organic solvent are phase-separated and the surplus dispersant colloidal particles are extracted with the organic solvent, the phase-dispersed aqueous carbon nanotube solution is separated from the organic solvent.;Carbon nanotubes, water dispersion, surfactant, dispersant, organic solvent