Unlock instant, AI-driven research and patent intelligence for your innovation.

Water-based antifouling coating for nano fishing nets and its preparation method and application

An antifouling coating and nanomaterial technology, which is applied in the field of marine antifouling coatings, can solve the problems of environmental hazards, refractory degradation, waste, etc.

Active Publication Date: 2020-10-27
SHENZHEN INST OF ADVANCED TECH
View PDF5 Cites 0 Cited by
  • 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

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Water-based antifouling coating for nano fishing nets and its preparation method and application
  • Water-based antifouling coating for nano fishing nets and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

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

[0119] It can be understood that there is no particular limitation on the mixing method of the raw materials of the paint, and a conventional paint mixing method can be used.

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

[0121] As a kind of preferred embodiment, the preparation method of nano fishnet...

Embodiment 1

[0135] A water-based antifouling coating for nano-fishing nets, consisting of the following raw materials in parts by weight: 20 parts of chlorosulfonated polyethylene emulsion (60% solid content), 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 parts of organic bentonite, 0.2 parts of polydimethylsiloxane defoamer, 0.2 parts of hydroxyethyl cellulose, 1 part of silane coupling agent KH-550 and water 50 copies;

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

Embodiment 2

[0138] A water-based antifouling coating for nano-fishing nets, consisting of the following raw materials in parts by weight: 50 parts of chlorosulfonated polyethylene emulsion (40% solid content), 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 defoamer, 0.4 parts of hydrophobic modified alkali swelling thickener, silane coupling agent KH- 550 3 parts and 70 parts of water;

[0139] The nano antifouling agent is MnO, TiO with a molar ratio of 2:1:1:1 2 , ZnO and SiO 2 Composite nano-oxides.

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
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
adhesivityaaaaaaaaaa
Login to View More

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 coatings, in particular to a water-based antifouling coating for nano fishing nets and its preparation method and application. Background technique [0002] The marine environment is a highly corrosive and biofouling environment. Marine biofouling refers to the accumulation of microorganisms, plant organisms, and animal organisms in the ocean on the artificial surface. After the deep-sea cages used for breeding are attached by a large number of marine organisms, the mesh holes are blocked, and the seawater inside and outside the cages is blocked. Convection decreases, dissolved oxygen content and food supply decrease, making the cultured seafood stunted or even dead, seriously affecting the yield and quality of seafood. Using manual or mechanical beating to remove marine organisms requires a lot of work, many repetitions, damage to the cages, and also affects the breeding cycle of seaf...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(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