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Water-based antifouling coating for nanoscale fishing net and preparation method and application thereof

A technology of anti-fouling coatings and nano-materials, applied in the field of marine anti-fouling coatings, can solve the problems of easy enrichment, high toxicity, and refractory degradation of anti-fouling agents, so as to prevent the adhesion and fouling of marine organisms and prevent marine biological pollution Obvious damage, good antibacterial, anti-algae and anti-fouling effects

Active Publication Date: 2018-01-05
SHENZHEN INST OF ADVANCED TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. Most of the existing antifouling coatings for netting and cages are solvent-based, which have the disadvantages of toxic solvents, volatile, wasteful, and polluting the environment;
[0007] 2. Toxic antifouling agents such as organic tin and cuprous oxide are harmful to the environment, and their use is gradually banned at home and abroad. Other antifouling agents such as cuprous oxide and isothiazolone are widely used, and these antifouling agents exist The shortcomings of easy enrichment, refractory degradation and high toxicity have caused pollution to the marine environment. New environmentally friendly and efficient antifouling agents need to be developed and utilized

Method used

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  • Water-based antifouling coating for nanoscale fishing net and preparation method and application thereof
  • Water-based antifouling coating for nanoscale fishing net and preparation method and application thereof

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preparation example Construction

[0118] According to the second aspect of the present invention, there is provided a method for preparing the above-mentioned nano-fishnet water-based antifouling coating, including the following steps: adding a formula amount of nano antifouling agent, optional pigments and fillers, optional wetting and dispersing agents, Optional anti-settling agent, optional defoaming agent, optional thickening agent, optional silane coupling agent, chlorosulfonated polyethylene emulsion, water-based epoxy resin and water are fully mixed to obtain a water-based nano fishing net Antifouling paint.

[0119] It can be understood that there is no special restriction on the mixing method of the various raw materials of the coating, and conventional coating mixing methods can be used.

[0120] The preparation method of the invention is simple and easy to implement, and the obtained water-based paint is uniform and stable, and is convenient for later coating.

[0121] As a preferred embodiment, the prepa...

Embodiment 1

[0135] A water-based antifouling paint for nano fishing nets, which is composed of the following parts by weight: 20 parts of chlorosulfonated polyethylene emulsion (solid content 60%), 20 parts of water-based epoxy resin E-51, 0.5 parts of nano antifouling agent, 10 parts of titanium dioxide, 1 part of trisodium phosphate, 0.5 part of organic bentonite, 0.2 part of polydimethylsiloxane defoaming agent, 0.2 part of hydroxyethyl cellulose, 1 part of silane coupling agent KH-550 and water 50 copies;

[0136] Nano antifouling agent is MnO and TiO with a molar ratio of 2:5:1:5 2 , ZnO and SiO 2 Composition of composite nano oxides.

Embodiment 2

[0138] A water-based antifouling paint for nano fishing nets, which is composed of the following parts by weight: 50 parts of chlorosulfonated polyethylene emulsion (solid content 40%), 12 parts of water-based epoxy resin E-51, 3 parts of nano antifouling agent, 15 parts of calcium carbonate, 3 parts of sodium hexametaphosphate, 2 parts of fumed silica, 0.4 parts of polydimethylsiloxane antifoaming agent, 0.4 parts of hydrophobically modified alkali swelling thickener, silane coupling agent KH- 550 3 parts and 70 parts water;

[0139] Nano antifouling agent is MnO and TiO with a molar ratio of 2:1:1:1 2 , ZnO and SiO 2 Composition of composite nano oxides.

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Abstract

The invention discloses a water-based antifouling coating for a nanoscale fishing net and a preparation method and application thereof, and relates to the field of marine antifouling coatings. The water-based antifouling coating for a nanoscale fishing net is prepared from, by weight, 20-60 parts of chlorosulfonated polyethylene emulsion, 8-20 parts of water-based epoxy resin, 0.5-10 parts of nano-antifouling agent and 5-100 parts of water, wherein the nano-antifouling agent is a charge transfer-typed auto redox nano material. The water-based antifouling coating relieves the disadvantages thatexisting net coat net case antifouling coatings belongs to the multi-solvent type, are not environment-friendly, and have poor adhesion, and used antifouling agents used have potential environmentalhazards and a poor antifouling effect. The water-based antifouling coating for a nanoscale fishing net has the advantages of good adhesion, prominent anti-contamination, antibacterial and anti-algal performances, and an obvious antifouling effect; in addition, it is safe and nontoxic to replace the solvent with water, and the antifouling agent does not contain substances which pollute the marine ecological environment, and is an environment-friendly antifouling coating for the fishing net.

Description

Technical field [0001] The invention relates to the technical field of marine antifouling paints, and in particular to a water-based antifouling paint for nano fishing nets, and a preparation method and application thereof. Background technique [0002] The marine environment is a corrosive and biologically fouled environment. Marine organism fouling refers to the accumulation of microorganisms, plant organisms, and animal organisms in the ocean on artificial surfaces. After a large number of marine organisms attach to the deep-sea cages used for breeding, the meshes are blocked, and the seawater inside and outside the cages is blocked. The reduction of convection, the reduction of dissolved oxygen content and the supply of food make the cultivated seafood stunted and even die, which seriously affects the output and quality of seafood. The use of manual or mechanical hammering to remove marine organisms requires a lot of work, repeated times, and damages the cages, which also af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/34C09D163/02C09D163/00C09D5/16C09D5/14C09D5/02A01K61/60
CPCY02A40/81
Inventor 梁岩刘春花吴彬彬
Owner SHENZHEN INST OF ADVANCED TECH
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