| abstract |
A product having a protective coating. The preparation method therefor comprises: preparing a first precursor dispersing agent, which contains a first active organic precursor, the first active organic precursor being fluoride-free monomers; preparing a second precursor dispersing agent, which contains a second active organic precursor, the second organic precursor being fluoride-containing monomers; applying the first precursor dispersing agent to a product body, drying to form a first dry layer, coating and applying the second precursor dispersing agent on the first dry layer, drying to form a second dry layer, and enabling the first active organic precursor and the second active organic precursor to undergo polymerization completely, so as to obtain the product having the protective coating. Under protection of the polymer protective coating, the product body has good waterproof, dustproof, moisture-proof, chemical-resistant and salt spray corrosion-resistant performance. |