Environment-friendly marine antifouling coating and preparation method thereof

[0018] Example 1

[0019] like figure 1 As shown, in this embodiment, the environmentally friendly marine antifouling coating is made of silicone resin as the matrix, and coffee particles of more than 150 meshes are dispersed in the matrix. The silicone resin is a two-component silicone resin. In the example, it is PDMS, and the mass of coffee particles is 4% to 5% of the total mass of the coating.

[0020] (1) Preparation of coffee dispersion

[0021] The pure coffee was ground in a ceramic mortar for 20 minutes and then screened with a 150-mesh metal sample sieve to remove large coffee particles. After that, the coffee was added to anhydrous ethanol to dissolve (mass ratio 1:4), stirred with a mechanical stirrer for 10 minutes, and then placed in an ultrasonic cleaner to shake for 30 minutes to obtain a coffee dispersion.

[0022] (2) Preparation of silicone resin dispersion

[0023] Pour the silicone resin component A into tetrahydrofuran, then keep stirring at a water bat

[0026] Example 2

[0027] The difference between this example and Example 1 is that the added silicone resin is RTV-2 silicone rubber, and the mass ratio of its AB components is A:B=100:1.5.

[0028] Example 3 and Example 4