The invention discloses water-based
graphene /
carbon nanotube composite electric-heating conversion
printing ink and a preparation method thereof. The preparation method comprises the following steps: uniformly stirring a
graphene microchip, a water-based non-ionic high-
polymer dispersant and water, and then dispersing so as to obtain a first dispersion; putting one-dimensional nano-
powder into inorganic strong acid, carrying out heating
reflux, carrying out ultrasonic treatment, washing with water, and
drying, so as to obtain a second dispersion; uniformly mixing the second dispersion with
carbon black powder, a water-based anionic dispersant,
sodium dodecyl
benzene sulfonate, a water-based hydroxyl-modified nano-acrylic
emulsion and
dimethylethanolamine, and then dispersing so as to obtain a third dispersion; and mixing the first dispersion, the third dispersion and water-based resin,
grinding, adding a flatting agent, a
defoamer, a pH adjusting agent, a
preservative and an anti-
settling agent, and uniformly mixing, so as to obtain the water-based
graphene /
carbon nanotube composite electric-heating conversion
printing ink. The invention further discloses the water-based graphene /
carbon nanotube composite electric-heating conversion
printing ink.