The invention discloses a long-acting protective water-based
fluorocarbon paint and a preparation method thereof. The water-based
fluorocarbon paint mainly comprises a component A and a component B, the component A mainly comprises the following raw materials in parts by weight: 50-70 parts of a self-emulsifying
fluorocarbon emulsion, 3-8 parts of
polycarbonate diol, 3-7 parts of a cosolvent, 15-23 parts of a filler, 5-7 parts of functional fluorocarbon resin, 5-15 parts of deionized water, 0.5-4 parts of an auxiliary agent and 0.5-4 parts of a modified fluorocarbon
polymer; and the component B comprises the following components in parts by weight: 40-60 parts of an HDI curing agent and 40-60 parts of a
solvent. According to the fluorocarbon paint disclosed by the invention, the water-based property, efficient film forming, long-term
weather resistance and strong
adhesive force of the fluorocarbon paint are realized through the cooperation of the self-emulsifying fluorocarbon dispersoid, the functional fluorocarbon resin and the modified fluorocarbon
polymer; a hydrophilic modified HDI tripolymer is used as a curing agent and is combined with a self-emulsifying technology, so that the compatibility of high-
fluorine-content resin and a water-based
system is realized. Compared with general water-based fluorocarbon paint, the fluorocarbon paint disclosed by the invention realizes stronger
ultraviolet resistance, salt mist resistance, acid and alkali resistance and hydrophobicity, and the
adhesive force of a paint film is also remarkably improved; the fluorocarbon paint is long in activation period and suitable for batch use.