The invention belongs to a waterborne nano
coil coating and a preparation method thereof. Firstly, an inorganic material with no toxic property, foreign smell and
combustion characteristic is used as a basic
powder material of a
coil coating, a waterborne acrylic
emulsion, waterborne
epoxy resin, water-soluble functional auxiliaries and other film forming matters are compounded, updated and modified by using a
nanotechnology and nano materials, and gaps of large micro materials in a
coating structure are filled by using various nano
powder materials after the hydration of the
coil coating is effectively finished, so that the
coating generates a
coating function enhancing effect under the synergistic action of multi-effect combination of the nano materials and micro materials, the defect that the performance of the waterborne coil coating prepared by a
micrometer technology is lowered is overcome effectively, and the
technical performance of the waterborne coil coating is remarkably enhanced. By using the waterborne nano coil coating and the preparation method thereof, the production efficiency is increased, the fire risks and
industrial pollution of the traditional
solvent type coil coating are eliminated, and meanwhile, the aim of safe, environment-friendly, low-consumption and efficient production is achieved.