Preparation method of super-amphiphilic coating based on polydopamine codeposition
A polydopamine and co-deposition technology, used in coatings, anti-corrosion coatings, devices for coating liquids on surfaces, etc., can solve problems such as poor oxidant and hydrophilization effect
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Embodiment 1
[0022] The specific steps of the preparation method of super amphiphilic coating in the present embodiment are as follows:
[0023] (1) Ultrasonic degrease the glass slides in ethanol for 30 minutes, wash them three times with deionized water, and then place them in a blast oven at 80°C for 2 hours to dry for later use.
[0024] (2) Weigh 6.057g of Tris in a beaker, add an appropriate amount of ultrapure water to dissolve it, transfer it to a 1L volumetric flask, and adjust the pH to 8.5 with hydrochloric acid to obtain Tris-hydrochloric acid buffer.
[0025] (3) Weigh 0.1 g of dopamine hydrochloride and 0.014 g of nanometer zero-valent iron into a 100 mL beaker, add 50 mL of tris-hydrochloric acid buffer prepared in step (2), and stir magnetically to obtain a mixed solution.
[0026] (4) Immerse the glass slide in the mixed solution obtained in step (3) for deposition for 1 h, accompanied by magnetic stirring at a stirring speed of 280 r min -1 , take out the glass slide, w...
Embodiment 2
[0029] The specific steps of the preparation method of super amphiphilic coating in the present embodiment are as follows:
[0030] (1) Ultrasonic degrease the glass slides in ethanol for 30 minutes, wash them three times with deionized water, and then place them in a blast oven at 80°C for 2 hours to dry for later use.
[0031] (2) Weigh 6.057g of Tris in a beaker, add an appropriate amount of ultrapure water to dissolve it, transfer it to a 1L volumetric flask, and adjust the pH to 8.5 with hydrochloric acid to obtain Tris-hydrochloric acid buffer.
[0032] (3) Weigh 0.1 g of dopamine hydrochloride and 0.014 g of nanometer zero-valent iron into a 100 mL beaker, add 50 mL of tris-hydrochloric acid buffer prepared in step (2), and stir magnetically to obtain a mixed solution.
[0033] (4) Immerse the glass slide in the solution obtained in step (3) for deposition for 4 hours, accompanied by magnetic stirring at a stirring speed of 500r min -1 , take out the glass slide, wash...
Embodiment 3
[0036] The specific steps of the preparation method of super amphiphilic coating in the present embodiment are as follows:
[0037] (1) Ultrasonic degrease the glass microfiber filter paper in ethanol for 30 minutes, wash it with deionized water three times, and dry it in a blast oven at 50°C for 4 hours, and set it aside.
[0038] (2) Weigh 6.057g of Tris in a beaker, add an appropriate amount of ultrapure water to dissolve it, transfer it to a 1L volumetric flask, and adjust the pH to 8.5 with hydrochloric acid to obtain Tris-hydrochloric acid buffer.
[0039] (3) Weigh 0.1g of dopamine hydrochloride and 0.028g of nanometer zero-valent iron into a 100mL beaker, add 50mL of tris-hydrochloric acid buffer prepared in step (2), and stir magnetically to obtain a mixed solution.
[0040] (4) Immerse the glass microfiber filter paper in the mixed solution obtained in step (3) to deposit for 4h, accompanied by magnetic stirring at the same time, the stirring speed is 100r min -1 ,...
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