Structural color super-hydrophobic coating and preparation method thereof
A super-hydrophobic coating and structural color technology, applied in coatings and other directions, can solve the problems of self-healing performance greatly affected by temperature, no adjustable color, complicated preparation process, etc., and achieve important application value, low cost, Simple and convenient operation
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Embodiment 1
[0042] Embodiment 1 A kind of structural color superhydrophobic paint and coating
[0043] 1. Preparation method
[0044] (1) adding the polystyrene microsphere powder with an average diameter of 150nm into dehydrated alcohol for ultrasonic dispersion, to obtain a microsphere dispersion with a mass fraction of 5%;
[0045] (2) Add 4.5mL tetraethyl silicate and 4mL ammonia water with a mass fraction of 25% to 10mL microsphere dispersion liquid, and react at room temperature for 12 hours to obtain liquid A;
[0046] (3) After centrifuging liquid A to remove the supernatant, dry it at 60°C for 24 hours, and thoroughly grind it evenly to obtain roughened microspheres with an average diameter of 200nm;
[0047] (4) the roughened microspheres obtained in step (3) are mixed uniformly with carbon powder in a mass ratio of 1:0.02;
[0048] (5) Dissolve dimethylsiloxane resin in ethyl acetate (the mass ratio of the two is 1:1) to obtain a dimethylsiloxane resin solution;
[0049] (6)...
Embodiment 2
[0059] Embodiment 2 A kind of structural color superhydrophobic paint and coating
[0060] 1. Preparation method
[0061] (1) The polystyrene microsphere powder that average diameter is 200nm is added dehydrated alcohol and carries out ultrasonic dispersion, obtains the microsphere dispersion liquid that mass fraction is 5%;
[0062] (2) Add 4.5mL tetraethyl silicate and 4mL ammonia water with a mass fraction of 25% to 10mL microsphere dispersion liquid, and react at room temperature for 12 hours to obtain liquid A;
[0063] (3) After centrifuging liquid A to remove the supernatant, dry it at 60°C for 24 hours, and thoroughly grind it evenly to obtain roughened microspheres with an average diameter of 250nm;
[0064] (4) the roughened microspheres obtained in step (3) are mixed uniformly with carbon powder in a mass ratio of 1:0.02;
[0065] (5) Dissolve dimethylsiloxane resin in ethyl acetate (the mass ratio of the two is 1:5) to obtain a dimethylsiloxane resin solution;
...
Embodiment 3
[0071] Embodiment 3 A kind of structural color superhydrophobic paint and coating
[0072] 1. Preparation method
[0073] (1) adding the silicon dioxide microsphere powder with an average diameter of 110nm into dehydrated alcohol for ultrasonic dispersion to obtain a microsphere dispersion with a mass fraction of 10%;
[0074] (2) Add 4 mL of tetraethyl silicate and 4 mL of ammonia water with a mass fraction of 25% to 5 mL of the microsphere dispersion, and react at room temperature for 18 hours to obtain liquid A;
[0075] (3) After centrifuging liquid A to remove the supernatant, dry it at 80°C for 12 hours, and thoroughly grind it evenly to obtain roughened microspheres with an average diameter of 180 nm;
[0076] (4) the roughened microspheres obtained in step (3) are mixed uniformly with carbon powder in a mass ratio of 1:0.05;
[0077] (5) Dissolve dimethylsiloxane resin in toluene (the mass ratio of the two is 1:2) to obtain a dimethylsiloxane resin solution;
[0078...
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