| abstract |
The invention relates to a method for preparing a super-hydrophobic coating by compounding waterborne polyurethane and hydrophobic modified inorganic nanoparticles. The method comprises the following steps: spraying waterborne polyurethane on a base material, horizontally placing for 15-30 minutes, spraying the hydrophobic modified inorganic nanoparticle dispersion liquid obtained in the step (2) on a polyurethane film, and drying at room temperature to obtain the waterborne polyurethane and hydrophobic modified inorganic nanoparticle composite coating. The method is simple, non-toxic and pollution-free, realizes the combination of organic and inorganic phases to form a hierarchical micro/nano structure, and can be used for large-scale production. |