Environmentally friendly antifouling materials based on silicone hydrogel resins and natural antifouling agents

Abstract

The invention discloses a preparation method of an environment-friendly anti-fouling material based on silicone hydrogel resin and a natural anti-fouling agent. The preparation method includes: usingallyl polyglycol ether or 2-allyloxyethanol and hydrogen-containing silicone oil as the initial raw materials, heating to perform hydrogen silicification reaction, adding butyl rubber sufficiently swollen and dissolved in xylene, and continuing reaction to prepare silicone hydrogel resin; keeping reaction temperature unchanged, adding a thixotropic agent, hydroxyl silicone oil, diketen, 4, 5-dichloro-2-n-octyl-4-isothiazolin-3-one, synthetic camphor and polyhedral oligomeric silsesquioxane, and performing stirring reaction to obtain a component A for standby; evenly mixing tetraethyl orthosilicate with di-n-butyltin dilaurate, methyl triethoxysilane, cyclohexanone, acetylacetone and xylene to obtain a component B; evenly mixing the component A and the component B according to the mass ratio of (7-9):1, and solidifying for 5-8 hours to obtain the anti-fouling material.

Description

technical field [0001] The invention relates to an antifouling material, in particular to an environment-friendly antifouling material based on silicone hydrogel resin and natural antifouling agent. Belongs to the technical field. Background technique [0002] Marine biofouling refers to the biofouling formed by the adsorption, growth and reproduction of marine microorganisms, plants and animals on the surface of ships and marine facilities, which brings many disadvantages to human beings engaged in marine activities. Brushing antifouling paint is widely used in the world as the main antifouling means, among which, tributyltin (TBT) and copper-containing antifouling paint are the most significant. However, antifouling agents in coatings can enrich human health and ecological security through food chain enrichment. In recent years, urgent attention to marine environmental issues has prompted people to continuously study new environmentally friendly antifouling coatings. ...

AI Technical Summary

Problems solved by technology

At present, most of the research on hydrogel is still in the stage of theoretical research. Although a large number of experiments have proved that hydrogel has excellent anti-adhesive and anti-fouling effects, there are still certain defects in the marine environment of complex biodiversity. , for example, the disadvantages of poor mechanical properties after swelling, poor adhesion to the coated surface, and easy aging limit the development of hydrogel antifouling coatings.

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