Novel marine antifouling coating

Abstract

The invention belongs to the technical field of preparation of ocean engineering antifouling coatings and in particular relates to a temperature-sensitive type intelligent marine antifouling coating. The novel marine antifouling coating comprises the following components in parts by weight: 20-60 parts of resin, 1-20 parts of titanium dioxide, 1-20 parts of rosin, 1-30 parts of iron oxide red, 1-10 parts of organobentonite, 1-30 parts of a solvent and 1-50 parts of a temperature-sensitive material. A chitosan material with thermo-response characteristics is adopted, so that the release speed of an antifouling composition in the antifouling coating is increased along with rise of the ambient temperature and is decreased along with reduction of the ambient temperature, intelligent temperature controlled release of the antifouling composition is realized, the antifouling period is prolonged to 1.5-4.5 years, the utilization rate of the antifouling coating is obviously improved, and the product is simple in components, environment-friendly, high-efficiency and low in price, has good application and development prospects and potential economic benefits and is used for antifouling treatment of ocean engineering such as ships, ports and wharfs.

Description

Technical field: [0001] The invention belongs to the technical field of preparation of marine engineering antifouling coatings, and in particular relates to a temperature-sensitive intelligent marine antifouling coating, which is used for antifouling treatment of marine engineering such as ships, ports and docks. Background technique: [0002] Ships, ports, wharves and other marine engineering located below the water level have been in contact with seawater for a long time, and are corroded by seawater and attached by marine organisms, resulting in obstruction of the ship's progress, reduced speed, increased fuel consumption, accelerated hull corrosion, and damage to dock platform facilities. The cooling water pipes of power plants block and destroy the anti-corrosion coating on the surface of materials or structures, which affects the safety of marine engineering. Coating marine antifouling coatings on the surface of marine engineering such as ships, ports, and docks can pre...

AI Technical Summary

Problems solved by technology

[0002] Ships, ports, wharves and other marine engineering located below the water level have been in contact with seawater for a long time, and are corroded by seawater and attached by marine organisms, resulting in obstruction of the ship's progress, reduced speed, increased fuel consumption, accelerated hull corrosion, and damage to dock platform facilities. The cooling water pipes of power plants block and destroy the anti-corrosion coating on the surface of materials or structures, which affects the safety of marine engineering. Coating marine antifouling coatings on the surface of marine engineering such as ships, ports, and docks can prevent the above problems from occurring; marine antifouling Coating is a special coating, its main function is to interact with marine organisms through the gradual seepage of the antifouling agent in the paint film, kill or drive away marine organisms, thereby preventing marine organisms from adhering to the surface of the material and preventing marine organisms from For the pollution of marine engineering such as ships, ports, and docks, the life activities of most marine organisms are related to changes in environmental temperature. As the ambient temperature rises, the life activities of marine organisms are vigorous, the ability of biological adhesion on the surface of materials is enhanced, and the ambient temperature drops. The life activities of marine organisms are scarce, and the ability of biological adhesion on the surface of the material is weakened; the current marine antifouling coatings inhibit the adhesion of marine organisms and cause secondary pollution to the marine environment. The amount of effective concentration is released quickly, resulting in uncontrolled release of antifouling coatings and failure in a short period of time. The mainstream products on the market are cuprous oxide antifouling coatings, and the antifouling period is 1-3 years, which cannot meet the marine The demand for long-term antifouling in engineering, therefore, the development of a new type of green intelligent marine antifouling coating that can regulate the release rate of antifouling agents according to changes in ambient temperature, improve utilization, and prolong the antifouling period has broad development. Prospect and application value