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Antifouling coating with low surface energy for marine mesh cage cover

A low surface energy, antifouling coating technology, applied in antifouling/underwater coatings, polyurea/polyurethane coatings, coatings, etc., can solve problems such as biological variation, seawater water pollution, and pollution of the ecological environment

Inactive Publication Date: 2007-06-13
EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These anti-fouling agents such as mercuric oxide, organic tin, and organic lead can cause sea water pollution, cause biological variation, pollute the ecological environment, and have potential hazards to marine ecological balance and human health.
Moreover, traditional toxic antifouling coatings generally only have an inhibitory effect on certain organisms, and with the continuous release of toxic substances, their antifouling effects gradually decline.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] The present invention adopts polyurethane, curing agent DN-EB, ethyl acetate, zinc oxide, magnesium oxide, also adds polytetrafluoroethylene, chlorinated paraffin in the paint component; The weight percentage of each component of paint is: polyurethane 35%, Curing agent DN-EB 6%, ethyl acetate 30%, polytetrafluoroethylene 25%, chlorinated paraffin 3%, zinc oxide 0.6%, magnesium oxide 0.4%; Grind and mix magnesium oxide; add ethyl acetate organic solvent to the main rubber polyurethane and stir evenly. After no solid lumps can be seen in the mixed solution, gradually add polytetrafluoroethylene and the ground mixture in 8 times within 90 minutes. Filler, keep fully stirring, add curing agent DN-EB in proportion, and stir evenly to become low surface energy marine cage net clothing antifouling coating.

Embodiment 2

[0013] The present invention adopts polyurethane, solidifying agent DN-EB, ethyl acetate, zinc oxide, magnesium oxide, also adds liquid capsaicin, polytetrafluoroethylene, chlorinated paraffin in the coating component; The weight percentage of each component of coating is: Polyurethane 30%, curing agent DN-EB 5%, ethyl acetate 30%, liquid capsaicin 2.5%, polytetrafluoroethylene 22%, chlorinated paraffin 9%, zinc oxide 1%, magnesium oxide 0.5%; Grind and mix chlorinated paraffin, zinc oxide and magnesium oxide for pigments and fillers; add ethyl acetate organic solvent to the main rubber polyurethane and stir evenly. Add polytetrafluoroethylene, liquid capsaicin and ground mixed filler and stir thoroughly, add curing agent DN-EB in proportion, and stir evenly to become a low surface energy marine cage netting antifouling coating.

[0014] The paint is applied by brushing or spraying, and the thickness of the coating is controlled at 100μm-150μm; in order to promote the volatili...

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Abstract

The antifouling coating with low surface energy for marine mesh cage cover is used forsolving the problem of damaging life attachment. The antifouling coating with low surface energy is compounded with polyurethane, curing agent, ethyl acetate, zinc oxide, magnesium oxide, PTFE and chloropafaffin in certain weight proportion and through grinding and mixing. The antifouling coating with low surface energy is used in coating marine mesh cage cover.

Description

technical field [0001] The invention relates to an antifouling paint for preventing sea sedentary organisms from fouling sea cage netting. Background technique [0002] In marine cage culture, keeping the water body smooth is the basic condition to ensure the healthy and rapid growth of cultured fish. However, nearly a thousand kinds of fouling organisms in the ocean are very easy to attach and grow rapidly on the cage net body, hindering the exchange of the cage water body, causing hypoxia in the aquaculture water body, frequent occurrence of fish diseases, and directly endangering the growth of fish. [0003] At present, an antifouling method for net cage nets is an effective antifouling method that uses antifouling paint to prevent marine organisms from adhering to the net body of the marine cage. [0004] However, the marine antifouling paint uses the poison contained in the paint to seep out at a certain speed, forming a poison concentration layer around the material t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/04C09D127/18C09D5/16
Inventor 王鲁民史航
Owner EAST CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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