| abstract |
The invention discloses a high-transparency super-hydrophobic spray coating and a preparation method thereof. The high-transparency super-hydrophobic spray coating comprises a binder and a nano-filler dispersion; the binder, in parts by mass, comprises: polysiloxane 1-90 parts of alkane, 0.1-90 parts of polysilazane, 0.02-10 parts of leveling agent, and 1-200 parts of first solvent; the nano-filler dispersion liquid includes, in parts by mass: 1-90 parts of nano-filler, hydrophobic 1-90 parts of property modifier and 1-2000 parts of second solvent. The binder is used to form micron-scale roughness on the target surface, while the hydrophobically modified nano-scale filler will concentrate at the interface due to its low surface energy, forming nano-scale roughness above micron-scale roughness, and finally forming superhydrophobicity The 3D micro-nano topology required for the characteristics; and the refractive index of the binder of the present invention is close to that of the nano-filler, so that the coating can maintain high transparency and will not affect the modified target surface after construction. |