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A kind of coating and application thereof for underwater antifouling on hull surface

A technology for surface water and hull materials, applied in antifouling/underwater coatings, coatings, paints containing biocide, etc., can solve the problems of rare preparation and application, low cost, etc., and achieve considerable social and economic value Effect

Active Publication Date: 2017-05-03
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the search found that it is rare to introduce similar methods into the preparation and application of underwater antifouling coatings on the surface of the hull, and there are coatings for underwater antifouling on the surface of the hull that have stable antifouling and durable effects, low cost, and simple preparation methods Not yet reported

Method used

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  • A kind of coating and application thereof for underwater antifouling on hull surface
  • A kind of coating and application thereof for underwater antifouling on hull surface
  • A kind of coating and application thereof for underwater antifouling on hull surface

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Embodiment 1: Taking the hull material with glass surface as an example, the application of the coating of the present invention is set forth

[0016] Glass treatment:

[0017] Place the glass in a series of solvents (acetone, water, ethanol, water) in sequence, ultrasonically clean it at 40-50 degrees for 20-30 minutes, and then place it in a mixture of water-hydrogen peroxide-hydroxylamine with a volume ratio of 5:1:1. In the solution, soak for 1 hour at 50 degrees, then rinse with deionized water, and blow dry under nitrogen flow to obtain a clean and dry glass hull material.

[0018] Paint preparation:

[0019] Prepare a polyethylene glycol-b-polystyrene-b-polyperfluorohexyl ethyl acrylate carbon disulfide solution with a concentration of 5 mg / ml to obtain a coating.

[0020] Application of coatings in antifouling treatment of hull surface:

[0021] Drop the paint on the surface of the obtained clean and dry glass, dry the volatile solvent in an environment with ...

Embodiment 2

[0024] Embodiment 2: Taking the hull material with steel surface as an example, the application of the coating of the present invention is set forth

[0025] Steel Handling:

[0026] Soak steel in 36%-38% concentrated hydrochloric acid at room temperature for 5-10 minutes, then wash and dry; Soak in the solution for 10-15 minutes at 70-75 degrees, rinse with deionized water, and dry under nitrogen flow to obtain clean and dry metal hull materials.

[0027] Paint preparation:

[0028] Prepare a polyethylene glycol-b-polystyrene-b-polyperfluorohexyl ethyl acrylate carbon disulfide solution with a concentration of 5 mg / ml to obtain a coating.

[0029] Application of coatings in antifouling treatment of hull surface:

[0030] Apply the paint on the obtained clean and dry steel surface by casting method, dry the volatile solvent in an environment with a relative humidity of 75%, and then spray water vapor during the drying process to make the water molecules penetrate into the s...

Embodiment 3

[0031] Embodiment 3: Taking the hull material with steel surface as an example, the application of the coating of the present invention is set forth

[0032] Steel Handling:

[0033] Soak steel in 36%-38% concentrated hydrochloric acid at room temperature for 5-10 minutes, then wash and dry; Soak in the solution for 10-15 minutes at 70-75 degrees, rinse with deionized water, and dry under nitrogen flow to obtain clean and dry metal hull materials.

[0034] Paint preparation:

[0035] Prepare a polyethylene glycol-b-polystyrene-b-polyperfluorohexyl ethyl acrylate carbon disulfide solution with a concentration of 10 mg / ml to obtain a coating.

[0036] Application of coatings in antifouling treatment of hull surface:

[0037] Apply the paint on the obtained clean and dry steel surface by casting method, dry the volatile solvent in an environment with a relative humidity of 75%, and then spray water vapor during the drying process to make the water molecules penetrate into the ...

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Abstract

The invention discloses an underwater anti-fouling coating for a hull surface. The coating is a carbon disulfide or chloroform solution prepared from polyethylene glycol-b-polystyrene-b-polyperfluoro hexyl ethyl acrylate, and the concentration is 1 to 20mg / ml. The invention also discloses application of the coating in the anti-fouling treatment of the hull surface. An experiment proves that the coating can form a honeycombed-hole thin film on the surface of a hull material, a contact angle between the thin film and water ranges from 140 degrees to 150 degrees, and it is indicated that the coating provided by the invention is widely applied to preparation of a coating layer and implementation of anti-fouling anti-bacterial treatment on the surfaces of ships, ocean engineering machines and sewage treatment equipment, and the social and economical values are considerable.

Description

technical field [0001] The invention relates to an underwater antifouling paint and its application, in particular to an underwater antifouling paint on the surface of a hull and its application, and belongs to the technical field of functional polymer materials. Background technique [0002] Adhesive fouling of marine organisms to ship hulls and other marine facilities will cause a series of serious problems. Generally, low surface energy materials have good antifouling properties, such as fluoropolymers with low surface energy, which have been widely used in coatings, surfactants and lubricating oils. The introduction of fluorine-containing structural units with low surface energy into block copolymers can cause surface or interface separation, and the surface of the polymer film can form an ordered structure, which has great advantages in improving surface properties. Polyethylene glycol has good biocompatibility and hydrophilicity, and it can form a stable hydration lay...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D153/00C09D5/16
Inventor 韩念凤周德杰唐新德
Owner SHANDONG JIAOTONG UNIV