Non-toxic anti-pollution paint for sea and method for preparing same

A marine anti-fouling and coating technology, applied in anti-fouling/underwater coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve the problems of ship corrosion, difficult to estimate economic losses, and reduce ship voyage rate, etc. To achieve the effect of preventing attachment growth

Inactive Publication Date: 2008-12-31
DALIAN MARITIME UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The fouling problem of marine organisms has always restricted people's development and utilization of marine resources. The attachment of various marine organisms will increase the ship's navigation resistance and fuel consumption. The metabolites of marine organisms will corrode the ship and increase the ship's life. Maintenance costs will reduce the voyage rate of ships, and marin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] 8000 mesh white tourmaline powder and nano zinc oxide ((KY-ZnO-01: KY-ZnO-02 = 3: 2, Shanghai Caiyu Nano Technology Co., Ltd.) powder (tourmaline: nano zinc oxide = 5: 1) Add 50g into 500ml of water. Then heat and stir in a water bath to raise the temperature to 60°C, then add 0.06g of sodium dodecylbenzenesulfonate, stir at constant temperature for 1h, then stir and disperse at a medium speed (500 rpm) and cool to room temperature , to prepare nano-zinc oxide-coated tourmaline ultrafine powder pre-dispersed slurry;

[0053] The above-mentioned ultrafine powder pre-dispersion slurry is added to the ethanol aqueous solution with a volume percentage concentration of 5%, so that the weight percentage concentration of the mixed powder in the solution is 5%, and the pH of the solution is adjusted by adding ammonia water to 9, and the molar concentration is added dropwise. React with 0.02mol / L silicate ethanol solution, so that the weight ratio of silicate, tourmaline and nan...

Embodiment 2

[0063] Add 50 g of 25,000 mesh white tourmaline powder and nano-zinc oxide (KY-ZnO-02, Shanghai Caiyu Nano Technology Co., Ltd.) powder (tourmaline: nano-zinc oxide=3:1) to 500 ml of water. Then heat and stir in a water bath to raise the temperature to 70 ° C, then add 1 g of sodium dodecylbenzene sulfonate, stir at a constant temperature for 2 hours, then stir and disperse at a medium speed (600 rpm) and cool to room temperature to obtain nano-zinc oxide coating Ultrafine powder pre-dispersed slurry of tourmaline;

[0064] The above-mentioned superfine powder pre-dispersed slurry is added into the ethanol aqueous solution of 25% by volume percentage concentration, so that the weight percentage concentration of the mixed powder in the solution is 40%, and the pH of the solution adjusted by adding ammonia water is 11, and the dropwise molar concentration is React with 1mol / L silicate ethanol solution, so that the weight ratio of silicate, tourmaline and nano-zinc oxide powder m...

Embodiment 3

[0076] Add 50 g of 12500 mesh white tourmaline powder and nano-zinc oxide powder (NP-Z-60, Shanghai Gaona Powder Technology Co., Ltd.) (tourmaline: nano-zinc oxide=4:1) to 500 ml of water. Then heat and stir in a water bath to raise the temperature to 65 ° C, then add 0.1 g of sodium dodecylbenzene sulfonate, stir at a constant temperature for 3 hours, then stir and disperse at a medium speed (750 rpm) and cool to room temperature to prepare nano-zinc oxide coatings. Ultrafine powder pre-dispersed slurry coated with tourmaline;

[0077] The above-mentioned ultrafine powder pre-dispersion slurry is added to the ethanol aqueous solution with a volume percentage concentration of 40%, so that the weight percentage concentration of the mixed powder in the solution is 15%, and the pH of the solution is adjusted to 12 by adding sodium hydroxide solution. The molar concentration of 0.5mol / L silicate ethanol solution is reacted so that the weight ratio of silicate, tourmaline and nano-...

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PUM

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Abstract

Nontoxic marine anti-fouling dope and a preparation method thereof are disclosed, belonging to technical fields of anti-fouling dope and underwater dope. The nontoxic marine anti-fouling dope contains film forming matter, nontoxic antifouling compound, dye, addition agent and water. The nontoxic antifouling compound is pre-dispersed slurry prepared by adding super-fine tourmaline powder and nano zinc oxide powder into 10 times amount of water, coating with sodium alkylbenzene sulfonate while heating and stirring. The nontoxic marine anti-fouling dope can be prepared through the steps of adding the nontoxic antifouling compound into ethanol aqueous solution, adjusting pH value to be 9-12, adding silicon ester ethanol solution to react for 2-4h, bathing in water and separating, and drying. The tourmaline of the nontoxic anti-fouling dope automatically develops an electric field on the surface of the dope in the seawater to enable the seawater to electrolyse to produce hypochlorite ions, which can prevent halobios to adhere or grow on the boat and the structure. The ion membrane is approximately 10 microns and causes no environment pollution. The nontoxic marine anti-fouling dope is mainly suitable for underwater fouling prevention.

Description

technical field [0001] The invention belongs to the technical field of antifouling paint and underwater paint. Background technique [0002] The fouling problem of marine organisms has always restricted people's development and utilization of marine resources. The attachment of various marine organisms will increase the ship's navigation resistance and fuel consumption. The metabolites of marine organisms will corrode the ship and increase the ship's life. Maintenance costs will reduce the voyage rate of ships, and marine organisms will also block various pipelines, valves and meshes of culture cages on the seabed, causing economic losses that are difficult to estimate. In order to achieve the prevention and control of marine organisms, anti-fouling coatings are the only widely used and economical and efficient way to solve the problem of fouling. However, many antifouling coatings currently used contain releasable antifouling agents (such as organotin and cuprous oxide), w...

Claims

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Application Information

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IPC IPC(8): C09D5/16C09D127/12C09D133/14C09D163/00C09D175/04C09D183/07C09D125/14C09D133/00
Inventor 张占平齐育红
Owner DALIAN MARITIME UNIVERSITY
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