Bionic pearl layer protective coating as well as preparation method and application thereof

The invention discloses a bionic pearl layer protective coating as well as a preparation method and application thereof. The low-viscosity organic resin permeates into the substrate through pores, and the modified inorganic sheet filler with the sheet diameter larger than that of the pores of the substrate is blocked on the surface of the substrate. And in the downward permeation process of the low-viscosity organic resin, the sheet filler is induced to be stacked layer by layer in parallel under the shearing action of the low-viscosity organic resin, and the bionic pearl layer protective coating with a brick-mud structure similar to a pearl layer is formed after curing. The bionic pearl layer protective coating fully exerts the barrier effect of the flaky filler, effectively prolongs the diffusion path of corrosive media such as water, oxygen and the like, and has excellent moisture-proof, corrosion-resistant and ablation-resistant properties. The method is simple, convenient, rapid, low in cost and suitable