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An anti-fouling and ship technology, applied in the field of ships, can solve the problems of genetic variation of aquatic animals, destroying the ecological balance of the marine environment, and death of seaweed, etc., and achieves the effects of excellent adhesion, easy to apply multiple times, and strong adhesion ability.
Inactive Publication Date: 2015-04-29
QINGDAO WUWEI THERMAL INSULATION MATERIAL
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After the 1970s, with the prohibition of antifouling agents such as mercury and arsenic, organotin compounds became representative antifouling agents. However, in the 1980s, it was discovered that organotin accumulated in fish and shellfish, which led to genetic pollution in aquatic animals. The variation was serious, so organotin antifouling agents were banned, and in 2008, organotin antifouling agents were completely banned
At present, cuprous chloride antifouling agent coatings occupy a dominant position in the field of antifouling, but because copper elements will accumulate in large quantities in the ocean, especially in harbors, causing a large number of algae to die, thereby destroying the ecological balance of the marine environment, so will eventually be disabled
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Embodiment 1
[0024] A ship antifouling method, comprising the steps of:
[0025] (1) Steel plate surface pretreatment: use shot blasting line for pretreatment to remove oil, water and sundries on the surface.
[0026] (2) Sandblasting treatment of the substrate: sandblasting the substrate to the Sa2.5 standard. During this process, the compressed air pressure is 0.5-0.6MPa, the diameter of the steel shot is 1.2-1.5mm, and the hardness of the steel shot is HV400-500. Nozzle diameter 4-6mm.
[0027] (3) Sandblasting for repairing structural defects such as welds: the surface to be coated is sandblasted to Sa2?, with a roughness > 80 microns; the abrasive is steel grit,
[0028] Copper ore; the maximum allowable salt value is 240μs / cm; the dust distribution level of the surface dust particle size is "3", "4" and "5". When spraying, the spray gun is kept perpendicular to the surface to be coated, and the distance is 200 ~ 280mm.
[0029] (4) Applying the primer: Use compressed air to remove...
Embodiment 2
[0037] Operation steps are identical with embodiment 1, difference is,
[0038] In step 4, the raw material formula of the primer is: 35 parts of solid acrylic acid, 20 parts of furfuryl alcohol modified urea-formaldehyde resin, 5 parts of molybdenum red, 12 parts of mica powder, 3 parts of organic acid ammonia complex, 6 parts of auxiliary agent and 15 parts of deionized water.
Embodiment 3
[0040] The operation steps are the same as in Example 1, except that in step 6, the topcoat includes the following raw materials in parts by weight: 35 parts of fluorinated acrylate, 30 parts of silicone rubber, 22 parts of polyethylene powder, 1 part of organic bentonite 1 part, polyethylene wax 1 part, propylene glycol 4 parts, capsaicin 1 part, tannic acid 1 part, diterpene formamide 1 part, P-cinnamic acid sulfate 1 part, lobster creatinine 1 part.
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Abstract
The invention discloses a ship anti-pollution method. The ship anti-pollution method comprises the following steps of surface pretreatment of a steel plate, sanding treatment of a substrate, defect repair and sand blasting of welding seams and other structures, spraying of a primer, spraying of a reinforced paint, and subsequent servicing. Before coating, the surface of the steel plate is pretreated; during integral coating, the bottom part of a ship is sprayed with bionic marine anti-pollution coating, the coating contains a pure natural biological anti-pollution agent, the aversion function on marine organisms is realized, the adhesion force of the marine organisms is damaged, the pollution preventing purpose is realized, any poisonous influence on the marine environment is avoided, any damage on the marine organisms is avoided, and the coating is pure natural and is free from public nuisance; the adhesion force, anti-corrosive and strain-proof properties are excellent, the requirements of semi-gloss and matte of an anti-rust paint of a ship cabin are met, the spraying for multiple times is easy, the easiness in volatizing of moisture is avoided, the adhesion capability is higher, and the flash rust is avoided; the process flow is short, and the produced ship has excellent anti-pollution, anti-corrosive and anti-rust properties.
Description
technical field [0001] The invention relates to a ship method, in particular to an antifouling method for marine ships. Background technique [0002] The adhesion of marine organisms brings great harm to ships and marine facilities. On the one hand, these marine organisms adhere to the surface of artificial facilities in the sea, which will increase the ship's navigation resistance, block pipelines and breeding nets, and affect the normal operation of acoustic instruments and other offshore equipment. Use, increase the burden of offshore oil and gas exploration platforms, accelerate metal corrosion and other serious hazards, resulting in huge losses in marine military activities, marine transportation, industry and aquaculture production. [0003] Since the development of antifouling coatings in the early 20th century, the problem of marine organisms has been basically solved. After the 1970s, with the prohibition of antifouling agents such as mercury and arsenic, organotin...
Claims
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Application Information
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