Preparation method and application of biodegradable antifouling resin
An antifouling resin and solvent technology, applied in antifouling/underwater coatings, biocide-containing paints, coatings, etc., can solve poor resistance to seawater immersion, short antifouling period, and unstable release of antifouling agents and other problems, to achieve the effects of controlled release, controllable degradation, and excellent resistance to seawater immersion
Active Publication Date: 2017-01-11
XIAMEN SUNRUI SHIP COATING
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Problems solved by technology
[0005] At present, in the research of biodegradable antifouling coatings, degradable polyurethane is used. However, due to the uncontrollable degradation rate of the resin itself and the physical and mechanical properties of degradable polyurethane, the antifouling agent in the coating cannot be released stably. , short antifouling period, and poor resistance to seawater immersion
Method used
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Embodiment 1
[0040] Embodiment 1: catalyst is stannous octoate, A solvent is xylene, B solvent is cyclohexanone, initiator is azobisisobutyronitrile, and C solvent is xylene;
Embodiment 2
[0041] Embodiment 2: catalyzer is tin protochloride, and A solvent is xylene, and B solvent is n-butanol, and initiator is azobisisobutyronitrile, and C solvent is xylene;
Embodiment 3
[0042] Embodiment 3: The catalyst is zinc oxide, the A solvent is xylene, the B solvent is cyclohexanone, the initiator is benzoyl peroxide, and the C solvent is butanone.
[0043] The applicant tested the performance of the synthesized degradable acrylate polymer (P3), the degradable antifouling resin, and the test results are shown in Table 2.
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Abstract
The invention relates to the technical field of marine antifouling coatings, in particular to a preparation method and application of biodegradable antifouling resin. The preparation method comprises the steps that raw materials including lactic acid, polyhydric alcohols and/or polyester polyol, a catalyst and a solvent A are adopted to synthesize a biodegradable polylactic acid block polymer P1; raw materials including the P1, triethylamine, methylacryloyl and a solvent B are adopted to synthesize polylactic acid block polymer based acrylic ester, raw materials including the P2, a metacrylic acid ester monomer, an initiator and a solvent C are adopted to synthesize a biodegradable acrylate polymer P3. The prepared biodegradable antifouling resin can be applied to the preparation of degradable antifouling coatings, the prepared antifouling coatings have excellent resistance to immersing in seawater and controllable degradability, then release of an antifouling agent is controlled, and a long-term antifouling effect is achieved.
Description
technical field [0001] The invention relates to the technical field of marine antifouling coatings, in particular to a preparation method and application of a degradable antifouling resin. Background technique [0002] At present, tin-free self-polishing coatings occupy a dominant position. It overcomes the disadvantages of high toxicity of traditional organotin self-polishing antifouling coatings, and at the same time has the advantages of self-polishing antifouling coatings. The coating dissolves polymers through ion exchange in seawater. , release antifouling agent, and then play an antifouling effect. Such polymers mainly include copper acrylate polymers and zinc acrylate polymers. Another class of polymers are silicone acrylate polymers, which are anti-fouling by silane hydrolysis. Their principles are that only the resin on the surface of the coating that is in contact with seawater is hydrolyzed and water cannot penetrate the interior of the coating film. When the s...
Claims
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IPC IPC(8): C08F290/06C08F220/18C09D151/08C09D5/16C08G63/91
CPCC09D151/08C08F290/061C08G63/91C09D5/1662C08F220/1808C08F220/18
Inventor 李春光黄杰刘轶龙王胜龙
Owner XIAMEN SUNRUI SHIP COATING
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