Preparation of carbon nanotube dispersion liquid for antistatic fiber coating

The invention discloses a preparation method of a carbon nanotube dispersion liquid for an antistatic fiber coating, and the preparation method specifically comprises the following steps: S1, adding a carbon nanotube material and nano silica gel into a container, stirring and mixing for 10-15 min, then centrifuging the obtained mixed liquid, and collecting the supernatant; s2, carrying out concentration treatment on the supernate obtained in the S1; S3, carrying out high-speed centrifugation on the concentrated solution obtained in the S2, so as to obtain a carbon nanotube precipitate; and S4, dispersing the carbon nanotube precipitate obtained in S3 in a dispersant to obtain a carbon nanotube dispersion liquid. The invention relates to the technical field of nanotube dispersion liquid manufacturing. According to the preparation of the carbon nanotube dispersion liquid for the antistatic fiber coating, the dispersity of carbon nanotubes in an aqueous solution can be improved by taking the nano silica gel as a