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Peeling antifouling paint of single-component propeller and preparing method thereof

An anti-fouling paint and propeller technology, applied in the field of paint, can solve the problems of difficult anti-fouling requirements of sodium hypochlorite concentration, being in the laboratory research stage, time-consuming, labor-consuming, and docking fees.

Active Publication Date: 2017-01-25
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The marine biofouling of the propeller, especially the marine biofouling of hard shells, will increase the navigation resistance and fuel consumption of the ship, reduce the speed of the ship, and at the same time increase the surface roughness of the propeller, reduce the output efficiency of the propeller, and accelerate the speed of the propeller. Corrosion causes ships to frequently dock for maintenance due to propeller fouling, increasing maintenance costs and reducing sailing rates
[0003] At present, a variety of methods to prevent marine biofouling have been researched and developed at home and abroad, including antifouling coating method, electrolytic antifouling method, ultrasonic method, radiochemical method and manual cleaning method, but the current application range is wide and the process is mature and stable. The only methods are manual cleaning, anti-fouling coating and electrolytic anti-fouling. Other methods are in the laboratory research stage, and there is no relevant engineering application experience
The manual cleaning method requires the ship to go into the dock to clean the propeller, use tools to eradicate marine organisms and polish the surface of the propeller to completely remove the marine organisms. Anti-fouling on the inner wall of the pipeline. In recent years, corresponding propeller anti-fouling devices have also been developed. However, the propeller is in an open environment, and the concentration of sodium hypochlorite is difficult to meet the anti-fouling requirements. Owner's welcome

Method used

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  • Peeling antifouling paint of single-component propeller and preparing method thereof
  • Peeling antifouling paint of single-component propeller and preparing method thereof

Examples

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Embodiment Construction

[0015] A single-component propeller peelable antifouling coating, which is composed of the following raw materials in mass percentage: resin base material 15-65%, thinner 0-12%, copper antifouling agent 25-65%, oxidation Zinc 5-15%, organic antifouling agent 0-10%, thixotropic agent 0.5-2%;

[0016] The resin base material is one or more of barium petroleum sulfonate, butter, lanolin, methyl silicone oil, and hydroxyl silicone oil.

[0017] Further, the diluent is one or more of turpentine, benzyl alcohol, and glycerin.

[0018] The copper antifouling agent is one or more of copper powder, cuprous oxide, cuprous thiocyanate, copper sulfate, and copper naphthenate.

[0019] The organic antifouling agent is one or more of zinc pyrithione, copper pyrithione, triphenylboron pyridine, TCPM, chlorothalonil, ECONEA, diuron, and carbendazim.

[0020] The thixotropic agent is fumed silica or BYK410 or a combination of both.

[0021] Enumerate 7 embodiments below, the coating formula...

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Abstract

The invention discloses a peeling antifouling paint of a single-component propeller and relates to the field of the coating technology.The paint is prepared by the following raw materials, in quality percentage,15-65% of resin binder, 0-12% of thinner, 25-65% of copper antifouling agent,5-15% of zinc oxide, 0-10% of organic antifouling agent and 0.5-2% of thixotropicagent; and the resin binder is any one or more of barium petroleum sulfonate, butter,lanum, methylsilicone oil and hydroxyl silicone oil. The antifouling paint provided in the invention is obtained by mixing the above materials uniformly through a high-speed dispersing process. The antifouling paint can achieve temporary antifouling action on the propeller when the ship stops to avoid fouling bioattachment; if the bioattachment is available, marine organism can peel and fall along the coating under the effect of the centrifugal force and current scouring of the propeller when the ship sails; the propeller surface must keep clean without bioattachment;and the antifouling perid is above six months.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a single-component propeller peelable antifouling coating and a preparation method thereof. Background technique [0002] At present, the materials used for ship propellers are mainly ferromanganese brass and stainless steel. The ferromanganese brass propeller itself can electrolyze copper ions and has a certain antifouling ability, but with the formation of corrosion products, a shielding layer will be formed on the surface , so that the precipitation of copper ions decreases, resulting in a decline in antifouling ability year by year. In addition, due to the anti-corrosion requirements of the propeller in actual use, a cathodic protection system is installed, resulting in the inability to precipitate copper ions in the ferromanganese-brass propeller, which makes it lose its antifouling ability; the stainless steel propeller itself has no antifouling ability. During the operat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D191/00C09D183/06C09D5/16C09D7/12
CPCC08L2205/035C09D5/1618C09D5/1625C09D191/00C08L83/06C08L91/00C08K13/02C08K2003/2248C08K2003/3045C08K2003/2296C08K5/43C08K3/36
Inventor 汤黎容王晶晶王萌
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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