Anti-fouling paint composition for ship and its preparing process

Abstract

An anti-fouling paint composition for ship is prepared from high-molecular polymer (28-36 pts.wt.), composite toxic material (25-36.6 pts.wt.), colour filler (22-32 pts.wt.), toughening agent (3.5-5 pts.wt.), sagging inhibitor (2-3 pts.wt.) and mixed solvent (30-38 pts.wt.) through mixing, stirring and dissolving. Its advantage is long service life.

Description

technical field [0001] The invention relates to a ship antifouling technology, in particular to an antifouling paint which is suitable for the parts below the waterline of the ship and can effectively prevent the ship from being polluted by marine organisms. The present invention also relates to a method for preparing the above antifouling paint. Background technique [0002] When a ship sails on the ocean or anchors in a port, the bottom of the ship and the parts below the waterline are always immersed in seawater, and fixed offshore oil drilling platforms and other fixed offshore facilities are also immersed in seawater all year round. It will be attached and corroded by marine organisms living in seawater such as barnacles, oysters, sea squirts, limeworms, screwworms, wood-boring water lice and seaweed. The attached ship will increase the weight of the hull, increase the surface roughness of the hull, increase the resistance, and slow down the speed, which also increases...

AI Technical Summary

Problems solved by technology

Therefore, it will also affect the growth of beneficial marine organisms while using it, and it will also cause certain pollution to seawater.

[0004] Traditional marine antifouling paints have the following defects depending on the type: For example, a layer of gray-green or black sediment will be formed on the surface of the paint film in the later stage of the dissolved antifouling paint, which is insoluble cuprous sulfide

The other is called hydrolyzed antifouling paint, also called self-polishing antifouling paint, which is made of organotin high polymer as poisonous material and base material, and gradually releases organotin poison through hydrolysis of organotin in seawater. The disadvantage of this type of coating is its toxicity to non-target organisms in the ocean, including ecologically and commercially important organisms such as snails, oysters, cockles, mussels and Fish etc. have brought unexpected harm, affecting their reproduction, development and survival, and also have toxic effects on the human body