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Environment-friendly anti-fouling and drag-reducing composite functional coating and preparation method thereof

A composite function and environment-friendly technology, applied in the fields of marine engineering and fluid dynamics, can solve the problems of poor anti-fouling and drag-reduction effect, and achieve the effect of remarkable anti-fouling and drag-reduction effect and good engineering application prospect.

Active Publication Date: 2017-09-19
上海纳微涂层有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with organic tin, the main toxic materials (such as cuprous oxide, etc.) and resins of tin-free self-polishing antifouling coatings lose their toxicity due to rapid degradation after being released from the paint film, and their harm to the marine environment is relatively small. Some tin-free self-polishing antifouling coatings have the disadvantage of poor antifouling and drag reduction effect

Method used

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  • Environment-friendly anti-fouling and drag-reducing composite functional coating and preparation method thereof
  • Environment-friendly anti-fouling and drag-reducing composite functional coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Mix cationic polyacrylamide (CPAM) with polydimethylsiloxane, acrylic resin and xylene with anti-sedimentation agent and dispersant according to the following parts by weight, and stir evenly to make a coating;

[0031] Cationic polyacrylamide (CPAM) 3.5 parts,

[0032] 5 parts of polydimethylsiloxane,

[0033] Acrylic resin 70 parts,

[0034] 20 parts of xylene,

[0035] 1 part polyamide wax,

[0036] Dispersant 0.5 part.

[0037] Before painting, all pollutants such as oil, dust or rust on the surface of the hull or marine structure should be cleaned up. Then apply (airless spray, high-pressure air spray, brush or roller) antirust paint (such as 616 chlorinated rubber iron red thick paste) and epoxy connecting paint (such as FJ-18) in sequence. After the paint film of the previous paint is cured, the anti-fouling and drag-reducing composite functional coating can be painted. The specific construction process parameters are as follows.

[0038]

[0039] The co...

Embodiment 2

[0041] Blend cationic polyacrylamide (CPAM) with polydimethylsiloxane, fluorocarbon resin and xylene according to the following mass percentages and mix with anti-settling agent and dispersant, and stir evenly to make a coating;

[0042] Cationic polyacrylamide (CPAM) 5 parts,

[0043] 5.5 parts of polydimethylsiloxane,

[0044] Fluorocarbon resin 73 parts,

[0045] 15 parts of xylene,

[0046] 1 part polyamide wax,

[0047] Dispersant 0.5 parts.

[0048] After cleaning the substrate surface, apply anti-rust paint and epoxy connecting paint in sequence. After the paint film of the previous paint is cured, the coating operation of the anti-fouling and drag-reducing composite functional coating is carried out. After the coating is dry, the antifouling and drag reduction performance test is carried out. The results showed that, compared with the traditional tin-free self-polishing antifouling coating, the inhibition rate of diatom attachment was increased by 72%, and the nu...

Embodiment 3

[0050] Blend cationic polyacrylamide (CPAM) with polydimethylsiloxane, fluorocarbon resin and xylene according to the following mass percentages and mix with anti-settling agent and dispersant, and stir evenly to make a coating;

[0051] Cationic polyacrylamide (CPAM) 5 parts,

[0052] 5.5 parts of polydimethylsiloxane,

[0053] 30 parts of fluorocarbon resin,

[0054] Acrylic resin 30 parts,

[0055] 16 parts of xylene,

[0056] 0.5 parts of polyamide wax,

[0057] Dispersant 0.3 parts.

[0058]After cleaning the substrate surface, apply anti-rust paint and epoxy connecting paint in sequence. After the paint film of the previous paint is cured, the coating operation of the anti-fouling and drag-reducing composite functional coating is carried out. After the coating is dry, the antifouling and drag reduction performance test is carried out. The results showed that, compared with the traditional tin-free self-polishing antifouling coating, the inhibition rate of diatom a...

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Abstract

The invention discloses environment-friendly antifouling damping complex-function coating and a preparation method thereof and a method for using the environment-friendly antifouling damping complex-function coating. The environment-friendly antifouling damping complex-function coating mainly comprises cation polyacrylamide, polydimethylsiloxane, xylene and resin. The resin is one of or mixture of acrylic resin and fluorocarbon resin. The environment-friendly antifouling damping complex-function coating or the environment-friendly antifouling damping complex-function coating prepared by the preparation method has the advantages of remarkable antifouling damping effect, environment friendliness, simplicity, feasibility, economy, practicality and the like, is applicable to massive production and has promising engineering application prospect.

Description

technical field [0001] The invention relates to an environment-friendly anti-fouling and drag-reducing composite functional coating and a preparation method thereof, which can effectively prevent marine organisms from attaching and fouling on equipment or facilities such as ships and marine structures, and can effectively reduce wall frictional resistance. It belongs to the technical field of ocean engineering and fluid dynamics. Background technique [0002] Due to long-term immersion in seawater, equipment or facilities such as ships and marine structures not only have to withstand seawater corrosion, but also the adhesion and fouling of marine microorganisms and macro organisms on the surface. Marine biofouling will lead to an increase in the surface roughness of the hull, resulting in increased sailing resistance, reduced speed, and increased fuel consumption; the adhesion and fouling of marine organisms will also increase the difficulty of cleaning the hull surface, sho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D127/12C09D133/26C09D183/04C09D5/16
Inventor 豆照良唐啸鸣
Owner 上海纳微涂层有限公司
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