Preparation method of lotus-like super-hydrophobic self-cleaning surface
A super-hydrophobic, self-cleaning technology, applied in the field of silicone rubber microarray preparation, can solve the problem of insufficient quantitative research on surface microstructure chemical composition, geometry and surface wettability, inability to optimize surface microstructure technical parameters, and inability to guide Super-hydrophobic surface design and other issues have achieved good application prospects, good mechanical stability, and strong acid and alkali corrosion resistance.
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[0033] Specific embodiment 1: In this embodiment, a lotus leaf-like superhydrophobic surface is prepared according to the following steps:
[0034] Step 1: Preparation of porous Ni film by hydrogen bubble template method ( Figure 4 )
[0035] Take platinum sheet (1cm 2 ) As the anode, the counter electrode is made of 304 stainless steel (1cm 2 ) Is the cathode. The pretreatment of stainless steel in the experiment includes polishing, degreasing, acid etching, water washing, absolute ethanol soaking, acetone cleaning, low-temperature blast drying, and sticking tape on the back of the stainless steel. The composition of the plating solution is 0.02-0.4mol·L -1 NiCl 2 , 0.5-4mol·L -1 NH 4 Cl and 2wt.% acetic acid, the pH is controlled within the range of 4.0±0.5, and the current density range of electrodeposition is 1.0-6.0A·cm -2 , The deposition time is 10-40s. The structure of the porous Ni film layer was constructed by adjusting the deposition parameters such as current density,...
Example Embodiment
[0041] Specific embodiment 2: This embodiment prepares a lotus leaf-like superhydrophobic surface according to the following steps:
[0042] Step 1: Preparation of porous Ni film by hydrogen bubble template method
[0043] The hydrogen bubble template electrodeposition method of porous Ni film is a platinum sheet (1cm 2 ) As the anode, the counter electrode is made of 304 stainless steel (1cm 2 ) Is the cathode. The pretreatment of stainless steel in the experiment includes polishing, degreasing, acid etching, water washing, absolute ethanol soaking, acetone cleaning, low-temperature blast drying, and sticking tape on the back of the stainless steel. The composition of the plating solution is 0.2mol·L -1 NiCl 2 , 2mol·L -1 NH 4 Cl and 2wt.% acetic acid, the pH is controlled within the range of 4.0±0.5, and the current density of electrodeposition is 3A·cm -2 , The deposition time is 30s. The deposited film should be immediately rinsed with distilled water, soaked in absolute ethan...
Example Embodiment
[0050] Specific embodiment 3: This embodiment prepares a lotus leaf-like superhydrophobic surface according to the following steps:
[0051] Step 1: Preparation of porous Ni film by hydrogen bubble template method
[0052] The hydrogen bubble template electrodeposition method of porous Ni film is a platinum sheet (1cm 2 ) As the anode, the counter electrode is made of 304 stainless steel (1cm 2 ) Is the cathode. The pretreatment of stainless steel in the experiment includes polishing, degreasing, acid etching, water washing, absolute ethanol soaking, acetone cleaning, low-temperature blast drying, and sticking tape on the back of the stainless steel. The composition of the plating solution is 0.2mol·L -1 NiCl 2 , 2mol·L -1 NH 4 Cl and 0.001wt.% OP (polyoxyethylene octyl phenol ether), the pH is controlled within the range of 4.0±0.5, and the current density of electrodeposition is 3A·cm -2 , The deposition time is 30s. The deposited film should be rinsed immediately with distilled...
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