A kind of preparation method of antibacterial type low surface energy modified polyurethane antifouling coating agent

An antifouling coating, low surface energy technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve problems such as poor compatibility and poor mechanical properties of polysiloxane, and achieve The method is simple, the wear resistance is good, and the film formation is fast.
CN103694839BActive Publication Date: 2015-09-16ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG UNIV
Publication Date
2015-09-16

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Abstract

The invention relates to a preparation method of an antibacterial low-surface energy modified polyurethane antifouling coating agent. The method comprises the steps of performing a free radical polymerization reaction between a monomer containing a capsaicin functional group and polysiloxane modified acrylate, a hydrocarbon-chain acrylate monomer and a hydroxyl-containing acrylate monomer to obtain organic silicone modified acrylate resin containing hydroxyl and capsaicin functional group; finally, uniformly mixing and stirring the resin and a polyisocyanate curing agent proportionally, and crosslinking and curing to obtain an antibacterial low-surface energy modified polyurethane antifouling coating agent. By adopting the method provided by the invention, the prepared low-surface energy modified polyurethane antifouling coating agent combines double effects of low surface energy and antibacterial function; moreover, a crosslinking and curing mode controllable at room temperature is provided, and the practical application value is good. The antifouling coating agent is used as a marine antifouling paint which can inhibit the adsorption of marine organisms and kill the microorganisms adsorbed to the hull surface through the capsaicin functional group.
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Description

technical field

[0001] The invention relates to an antifouling coating agent and a preparation method thereof, in particular to a preparation method of an antibacterial low surface energy modified polyurethane antifouling coating agent having both low surface energy and bactericidal properties. Background technique

[0002] Vessels or underwater equipment in the ocean will be fouled by marine organisms, which will have a negative impact on their performance and service life. The methods to solve marine biofouling include mechanical removal, underwater cleaning, and application of marine antifouling coatings, among which the most effective and convenient method is to apply marine antifouling coatings.

[0003] At present, marine antifouling coatings can achieve antifouling effect mainly through two methods, one is poisonous killing, which directly kills the marine organisms adsorbed on the surface through toxic substances, and the other is low surface energy, which prevents m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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