The invention discloses dip-
coating water-based paint for a transmission shaft and a preparation method thereof and relates to the technical field of
metal water-based paint. The dip-
coating water-based paint is prepared from the following raw materials in parts by weight: 20 to 40 parts of waterborne acrylic modified
epoxy resin and
epoxy modified
acrylic resin, 0.3 to 3 parts of a drier, 0.4 to 1.5 parts of a pH (Potential of
Hydrogen)
regulator, 0.6 to 1.5 parts of a dispersant, 0.3 to 0.5 part of a de-
foaming agent, 0.05 to 3 parts of
carbon black, 0.01 to 1 part of
graphene oxide, 4 to 12 parts of
iron oxide black, 2 to 20 parts of antirust
pigment, 3 to 8 parts of talcum
powder, 0.5 to 8 parts of heavy
calcium carbonate, 3 to 8 parts of
barium sulfate, 0.05 to 0.15 part of an anti-
sedimentation agent, 2 to 3 parts of a film forming auxiliary agent, 0.1 to 0.5 part of a
wetting agent, 0.1 to 0.5 part of a leveling agent, 0.1 to 0.5 part of a flash-
rust resisting agent, 0.1 to 1.2 parts of a thickener and 10 to 28 parts of water. The water-based paint has the advantages of easiness of improving a film thickness, high rigidity, good wear-resisting and
corrosion-preventing effects, capability of being rapidly dried at
room temperature and extremely low VOC (Volatile Organic Compounds) content.