High-stability environment-friendly carbon nanotube water dispersing liquid and preparation method thereof

The invention discloses a high-stability environment-friendly carbon nanotube water dispersing liquid and a preparation method thereof. The method comprises the steps: according to the mass parts, mixing 1-5 parts of carbon nanotubes, 0.5-20 parts of lignosulfonate and 0.1-5 parts of deionized water; and carrying out grinding treatment, adding water to dilute, adjusting the pH to 6-8, adding a stabilizer, and carrying out ultrasonic dispersion to obtain the stably dispersed carbon nanotube water dispersing liquid. The stabilizer is one or more of triton X-100, sodium dodecyl sulfate, sodium dodecyl benzene sulfonate, dodecyl sulfobetain and sodium methyl palmitate sulfonate. The high-stability environment-friendly carbon nanotube water dispersing liquid has the advantages of good dispersion effect of carbon nanotubes, high stability, high concentration, short technological process and preparation period, environmental friendliness and good compatibility with water-based resin. 本发明公开了高稳定性的环保型碳纳米管的水分散液及其制备方法。该方