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A kind of antibacterial modified low surface energy marine antifouling coating resin and preparation method thereof

A low surface energy, marine antifouling technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc., can solve problems such as poor adhesion, limited application scope, etc. Marine environment, fast film forming effect

Active Publication Date: 2015-11-18
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the adhesion between the organic fluorine low surface energy coating and the substrate is generally poor, which limits its application to a certain extent.

Method used

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  • A kind of antibacterial modified low surface energy marine antifouling coating resin and preparation method thereof
  • A kind of antibacterial modified low surface energy marine antifouling coating resin and preparation method thereof
  • A kind of antibacterial modified low surface energy marine antifouling coating resin and preparation method thereof

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preparation example Construction

[0022] The preparation method of the antibacterial modified low surface energy type marine antifouling coating resin of the present invention comprises the following steps:

[0023] 1. Dissolve 0.5-1.5 parts by weight of initiator in 10-30 parts by weight of organic solvent, preheat to 55°C-95°C to obtain the first solution;

[0024] 2. 10-50 parts by weight of methacrylate quaternary ammonium salt monomer, 10-50 parts by weight of fluorocarbon chain acrylate monomer, 20-70 parts by weight of hydrocarbon chain acrylate monomer, 20-70 parts by weight The epoxy acrylate monomer, the initiator of 1.5-4.5 parts by weight and the chain transfer agent of 0.5-6 parts by weight are dissolved in the organic solvent of 20-90 parts by weight to obtain the second solution;

[0025] 3. Slowly add the second solution obtained in step 2 to the first solution obtained in step 1, and control the rate of addition to 0.5-2mL / s; after adding, keep warm for 4-6 hours, and add 0.5-1.5 parts by weig...

Embodiment 1

[0034] (1) Dissolve 0.5g of 2,2’‐azobisisobutyronitrile in 10g of butyl acetate, preheat to 55°C to obtain the first solution;

[0035] (2) Mix 10g methacryloyloxyethyl benzyl dimethyl ammonium chloride, 10g [N-methyl perfluorohexanesulfonamido] ethyl methacrylate, 20g methyl methacrylate, 20g formazan Glycidyl acrylate, 1.5g 2,2'-azobisisobutyronitrile and 0.5g dodecyl mercaptan were dissolved in 20g butyl acetate to obtain a second solution;

[0036] (3) Slowly add the second solution to the first solution dropwise, and control the dropping rate to 0.5mL / s; ℃, keep warm for 4 hours to obtain a resin solution, add methanol 5 times the volume of the resin solution to precipitate the polymerization reaction product, centrifuge, and dry in vacuum to obtain an antibacterial modified low surface energy marine antifouling coating resin.

Embodiment 2

[0038] (1) Dissolve 0.5g of 2,2’‐azobisisobutyronitrile in 10g of ethylene glycol ethyl ether acetate, preheat to 55°C to obtain the first solution;

[0039] (2) Mix 10g of methacryloyloxyethyl n-dodecyldimethylammonium bromide, 10g of [N-methyl perfluorobutanesulfonamido] ethyl methacrylate, 40g of methyl acrylate, 40g Glycidyl methacrylate, 3g 2,2'-azobisisobutyronitrile and 3g dodecyl mercaptan were dissolved in 60g ethylene glycol ether acetate to obtain the second solution;

[0040] (3) Slowly add the second solution to the first solution dropwise, and control the dropping rate to 1mL / s; after the addition, keep warm for 6 hours, add 1g of 2,2'‐azobisisobutyronitrile, and raise the temperature to 105°C. Insulate for 4 hours to obtain a resin solution, add n-hexane 10 times the volume of the resin solution to precipitate the polymerization reaction product, centrifuge, and vacuum dry to obtain an antibacterial modified low surface energy marine antifouling coating resin. ...

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Abstract

The invention relates to an antibacterial modified low surface energy type marine antifouling paint resin and a preparation method of the resin. Methyl acrylate quaternary ammonium salt monomer and fluorocarbon chain acrylate monomer as well as hydrocarbon chain acrylate monomer and epoxy acrylate monomer are adopted to have free radical polymerization, so that the antibacterial modified low surface energy type marine antifouling paint resin can be obtained. According to the antibacterial modified low surface energy type resin, the double effects of the low surface energy of organo-fluorine polymer and the antibacterial property of quaternary ammonium salt are combined, and the resin has good combination property with epoxy primer, so that the antibacterial modified low surface energy type marine antifouling paint resin has good practical application value; when being used as the marine antifouling paint, the resin not only is capable of inhibiting the absorption of marine organism, but also is capable of killing the microorganism absorbed on the surface of a hull by bactericidal groups.

Description

technical field [0001] The invention relates to a marine antifouling coating resin, in particular to an antibacterial modified low surface energy marine antifouling coating resin with both low surface energy and bactericidal properties and a preparation method thereof. Background technique [0002] There are more than 2,000 species of marine fouling organisms recorded in the world, distributed in various sea areas. There are so many types and wide ranges of marine fouling organisms that the surface of any artificial facility immersed in seawater, such as ships, drilling equipment, docks, and breeding cages Biofouling will be encountered, which will bring a lot of inconvenience and huge economic losses to human beings. The methods to solve marine biofouling include mechanical removal, underwater cleaning, coating of marine antifouling paint, etc. Among them, the most effective and convenient method is to apply marine antifouling paint. [0003] Traditional marine antifouling...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/34C08F220/32C08F220/38C08F220/18C09D133/12C09D133/08C09D133/10C09D5/16
Inventor 张庆华陈曦刘海龙詹晓力陈丰秋
Owner ZHEJIANG UNIV
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