Electrodeposition method of super-hydrophobic and super-smooth coating on surface of weathering resistant steel

• Main Authors: ZHOU PEISHAN, WANG PING, ZHANG XIANJU, YU HONGYAN, DING WUCHENG, WANG LIANG, SHEN WENZHU, LYU DONGLI, WANG BIN
• Format: Patent
• Language: Chinese; English
• Published: 23.06.2023
• Subjects: APPARATUS THEREFOR; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL SURFACE TREATMENT; CHEMISTRY; CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; ELECTROFORMING; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING

The invention discloses an electro-deposition method for a super-hydrophobic and super-smooth coating on the surface of weathering resistant steel. The electro-deposition method comprises the following steps: step 1, cleaning the surface of the weathering resistant steel; secondly, weathering steel with a rough surface is prepared; thirdly, the weathering resistant steel with the rough surface is subjected to surface acid pickling activation treatment; fourthly, the activated weathering resistant steel is subjected to electro-deposition treatment, and the weathering resistant steel with a Zn-Mn coating electro-deposited on the surface is obtained; and fifthly, the weathering resistant steel obtained in the fourth step is placed in a stearic acid ethanol solution to be soaked, taken out and cured, and the weathering resistant steel with the super-hydrophobic coating is obtained. And 6, liquid polydimethylsiloxane is dispensed on the surface of the weathering resistant steel with the super-hydrophobic coating,