High-stability multifunctional conductive superhydrophobic anti-corrosion coating, preparation method and application
A high-stability, anti-corrosion coating technology, applied in conductive coatings, anti-corrosion coatings, coatings, etc., can solve the problems of poor processing performance, lack of compactness, weak bonding force, etc., to achieve excellent anti-corrosion performance, anti-corrosion Strong performance and practicability, the effect of slowing down pitting corrosion
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Embodiment 1
[0040] (1) Preparation of conductive PANI film layer: Use 800# to 1000# water-phase sandpaper to polish the surface of 304SS, then ultrasonically clean it in acetone and ethanol solutions for 10 minutes, and evaporate to dry at room temperature for use. CHI660E three-electrode electrochemical workstation was used for electrodeposition experiments. Platinum wire, SCE and treated 304SS were the counter electrode, reference electrode and working electrode, respectively, with 0.25mol / L DL-MA and 0.2mol / L An aqueous solution As an electrolyte, the cyclic voltammetry (CV) method was used for electrodeposition at room temperature. Dry at 60°C for 12h.
[0041] (2) Preparation of superhydrophobic POS suspension: In 50mL absolute ethanol, add 0.1mL distilled water, 0.1g SiO 2 , 0.01mol / L HDTMS, 0.002mol / L TEOS, 0.002mol / L MPS, and magnetically stirred at 60°C for 24 hours to obtain a white superhydrophobic POS suspension.
[0042](3) Preparation of PANI-PU-POS coating: Spray a layer ...
Embodiment 2
[0044] (1) Preparation of conductive PANI film layer: Use 800# to 1000# water-phase sandpaper to polish the surface of 304SS, then ultrasonically clean it in acetone and ethanol solutions for 10 minutes, and evaporate to dry at room temperature for use. CHI660E three-electrode electrochemical workstation was used for electrodeposition experiments. Platinum wire, SCE and treated 304SS were the counter electrode, reference electrode and working electrode, respectively, with 0.25mol / L DL-MA and 0.2mol / L An aqueous solution As an electrolyte, the cyclic voltammetry (CV) method was used for electrodeposition at room temperature. Dry at 60°C for 12h.
[0045] (2) Preparation of superhydrophobic POS suspension: In 50mL absolute ethanol, add 0.1mL distilled water, 0.1g SiO 2 , 0.015mol / L HDTMS, 0.003mol / L TEOS, 0.003mol / L MPS, and magnetically stirred at 60°C for 24 hours to obtain a white superhydrophobic POS suspension.
[0046] (3) Preparation of PANI-PU-POS coating: Spray a laye...
Embodiment 3
[0048] (1) Preparation of conductive PANI film layer: Use 800# to 1000# water-phase sandpaper to polish the surface of 304SS, then ultrasonically clean it in acetone and ethanol solutions for 10 minutes, and evaporate to dry at room temperature for use. CHI660E three-electrode electrochemical workstation was used for electrodeposition experiments. Platinum wire, SCE and treated 304SS were the counter electrode, reference electrode and working electrode, respectively, with 0.25mol / L DL-MA and 0.2mol / L An aqueous solution As an electrolyte, at room temperature, the cyclic voltammetry (CV) method was used for electrodeposition, the potential range was -0.2 to 1.0 V, the scan rate was 20 mV / s, and the number of cycles was 20. The obtained sample PANI was placed at 60 ℃ drying for 12h.
[0049] (2) Preparation of superhydrophobic POS suspension: In 50mL absolute ethanol, add 0.1mL distilled water, 0.1g SiO 2 , 0.018mol / L HDTMS, 0.004mol / L TEOS, 0.004mol / L MPS, and magnetically sti...
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