A kind of anti-marine biofouling industrial coating and preparation method thereof
A marine biofouling and industrial technology, applied in the field of coatings, can solve the problems of reduced diffusion concentration of antifouling agents, short service cycle, inability to resist biofouling for a long time, etc. The effect of bacteriostatic and bactericidal effect
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Embodiment 1
[0038] (1) Preparation of organic fluorine modified epoxy resin
[0039] According to the number of parts by weight, 10 to 30 parts of organofluorine powder, 0.1 to 2 parts of dibutyltin dilaurate catalyst was added to 100 parts of epoxy resin, heated at 90 ~ 95 °C reaction for 3 to 4 hours, that is, to obtain organic fluorine modified epoxy resin.
[0040] (2) Preparation of Ag@SiO 2
[0041] Called AgNO 3 Dissolved in deionized water, weighed 3-aminopropyltriethoxysilane dissolved in absolute ethanol, the above AgNO 3 The solution and the alcohol solution of 3-aminopropyltriethoxysilane are mixed evenly, and then nitric acid is added, ultrasonic oscillation, and then stirred with a magnetic stirrer to obtain a mixed solution. Among them, the weight ratio of silver nitrate, 3-aminopropyltriethoxysilane and nitric acid is 1:6~8:0.03~0.05.
[0042] (3) Preparation of industrial coatings resistant to marine biological fouling
[0043] S1, the 25 parts of pyrithione copper added to t...
Embodiment 2
[0049] Example 2 of an organic fluorine modified epoxy resin and Ag@SiO 2 The preparation steps are the same as in Example 1, the steps for preparing an industrial coating resistant to marine biofouling are as follows:
[0050] S1, according to the number of parts by weight, 15 parts of copper pyrithione were added to the organic solvent to dissolve, and then 1 part of hollow mesoporous silica was added, and the ultrasonic dispersion and stirring were evenly obtained to obtain the first solution;
[0051] S2, 25 parts of organic fluorine modified epoxy resin, 15 parts of epoxy resin, 30 parts of Ag@SiO 2 (Screen for Ag@SiO with a particle size of 300 nm.) 2), 6 parts of the pigment, and the first solution mixed evenly, to give the second solution;
[0052] S3, in the second solution added 1.5 parts dispersant, 1 part defoamer, 0.8 parts leveling agent, 2 parts anti-settling agent, stirred evenly, to get A component, the total weight of the above A component is 100 parts, the resi...
Embodiment 3
[0056] Example 3 of an organic fluorine modified epoxy resin and Ag@SiO 2 The preparation steps are the same as in Example 1, the steps for preparing an industrial coating resistant to marine biofouling are as follows:
[0057] S1, according to the number of parts by weight, 20 parts of copper pyridhione were added to the organic solvent to dissolve, and then 1 part of hollow mesoporous silica was added, and the ultrasonic dispersion was mixed and stirred evenly to obtain the first solution;
[0058] S2, 10 parts of organic fluorine modified epoxy resin, 25 parts of epoxy resin, 25 parts of Ag@SiO 2 (Screen for Ag@SiO with a particle size of 100 nm.) 2 ), 6 parts of the pigment, and the first solution mixed evenly, to give the second solution;
[0059] S3, in the second solution added 1.5 parts dispersant, 1 part defoamer, 0.8 parts leveling agent, 2 parts anti-settling agent, stirred evenly, to get A component, the total weight of the above A component is 100 parts, the residual ...
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