The invention discloses a preparation method of a durability self-reinforced transparent super-hydrophobic
coating based on steel
slag. The method comprises the following steps: firstly, co-dispersing steel
slag micro
powder and a one-dimensional / two-dimensional nano material (such as hydroxylated multi-walled carbon nanotubes,
cellulose nanofibers and the like) in an
alcohol solvent to form a suspension, and carrying out spraying and high-temperature heat treatment to construct a micro-nano rough
porous substrate; then, a solution obtained after hydrolytic condensation of perfluoroalkyl
silane is sprayed to the surface of a substrate, and hydrophobic modification is achieved after
drying and curing. The
coating with the micro-nano hierarchical structure is successfully prepared through the synergistic effect of the micro-nano structure of the steel
slag and the low-surface-energy substance in combination with the optimized spraying and heat treatment process. The static
water contact angle of the
coating is gt; the angle is 150 degrees, and the sliding angle is 1t; the visible light
transmittance is gt at 10 degrees; and moreover, the coating shows excellent
mechanical wear resistance,
environmental stability, self-cleaning property and anti-
icing function. The method is simple in process and low in cost, realizes high value-added utilization of the
industrial waste steel slag, and has wide application prospects in the fields of building glass, traffic equipment, solar panels and the like.