Preparation method for replicating shark skin surface micro-structure
A microstructure and shark skin technology, applied in the field of bionics, can solve the problems of increasing navigation drag resistance and increasing fuel consumption.
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Embodiment 1
[0017] 1. Wash the shark skin with 1%-5% glutaraldehyde and soak it for more than 20 hours;
[0018] 2. Do 5 dehydration treatments with absolute ethanol, 20-60 minutes each time;
[0019] 3. Dry in an oven at 80°C for 4-6 hours;
[0020] 4. After the dried shark skin, apply a layer of 1-2 cm polymer forming repair material, and cure at room temperature for 24 hours;
[0021] 5. Mix liquid silicone and vulcanizing agent at a ratio of 100:0.5, and place it in the mold;
[0022] 6. Put the shark skin on the silicone rubber, apply a pressure of 5MPa-2MPa to flatten it, put it in 80℃~240℃ for 1-3 minutes to vulcanize
[0023] 7. Remove the silicone rubber to obtain a silicone rubber mold with a shark scale shell microstructure surface.
Embodiment 2
[0025] 1. Wash the shark skin with 3% glutaraldehyde and soak it for 20 hours;
[0026] 2. Do 5 dehydration treatments with absolute ethanol, 40 minutes each time;
[0027] 3. Dry in an oven at 80°C for 6 hours;
[0028] 4. After the dried shark skin, apply a layer of 2cm Belzona repair material and cure at room temperature for 24 hours;
[0029] 5. Mix Dow Corning No. 184 liquid silicone and vulcanizing agent at a ratio of 100:0.5, and place it in the mold;
[0030] 6. Put the shark skin on the silicone rubber, apply a pressure of 2 MPa to flatten it, and put it in 150°C for 3 minutes to vulcanize;
[0031] 7. Remove the silicone rubber to obtain a silicone rubber mold with a shark scale shell microstructure surface.
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