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Conductive anti-pollution paint for sea and method for preparing same

A marine antifouling and coating technology, which is applied in the direction of conductive coatings, antifouling/underwater coatings, epoxy resin coatings, etc., can solve the problems of ship corrosion, reduce ship voyage rate, increase fuel consumption, etc., to prevent adhesion The effect of growth

Inactive Publication Date: 2008-12-31
DALIAN MARITIME UNIVERSITY
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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 marine organisms will also block various pipelines, valves and meshes of breeding cages on the seabed, causing economic losses that are difficult to estimate
[0004] So far, there have been no patent reports on the use of tourmaline in the preparation of conductive marine antifouling coatings at home and abroad

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Add 50 g of 8000-mesh white tourmaline powder and nano-zinc oxide (NP-Z-20, Shanghai Gaona Powder Technology Co., Ltd.) powder (tourmaline: nano-zinc oxide=5:1) to 500 ml of water. Then heat and stir in a water bath to raise the temperature to 60 ° C, then add 0.06 g of sodium dodecylbenzene sulfonate, stir at a constant temperature for 1 h, then stir and disperse at a medium speed (500 rpm) and cool to room temperature to prepare nano-zinc oxide coatings. Ultrafine powder predispersed paste coated with tourmaline.

[0042] The above-mentioned superfine powder pre-dispersed 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%, the pH of the solution adjusted by adding ammonia water is 9, and the dropwise molar concentration is React with 0.02mol / L silicate ethanol solution, so that the weight ratio of silicate, tourmaline and nano-zinc oxide pow...

Embodiment 2

[0052] Add 50 g of 25000 mesh white tourmaline powder and nano-zinc oxide (NP-Z-100, Shanghai Gaona Powder 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 (700 rpm) and cool to room temperature to obtain nano-zinc oxide coating Ultrafine powder predispersed slurry of tourmaline.

[0053] 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 mi...

Embodiment 3

[0065] Add 50 g of 12500 mesh white tourmaline powder and nano-zinc oxide (NP-Z-60, Shanghai Gaona Powder Technology Co., Ltd.) powder (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 (650 rpm) and cool to room temperature to prepare nano-zinc oxide coatings. Ultrafine powder predispersed paste coated with tourmaline.

[0066] The above-mentioned superfine powder pre-dispersed slurry is added into the ethanol aqueous solution of 40% concentration by volume, so that the concentration by weight of the mixed powder in the solution is 15%, the pH of the solution adjusted by adding ammonia water is 12, and the molar concentration is React with 0.5mol / L silicate ethanol solution, so that the weight ratio of silicate, tourmaline and nano-zinc oxide powder mixture is 0.5:1; re...

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PUM

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Abstract

A conductive marine antifouling paint and a preparation method thereof, belonging to the technical field of preparation and application of marine antifouling paint and in particular relating to the preparation and application of nontoxic conductive marine antifouling paint. Firstly, a composite antifouling composition is prepared by taking super-fine tourmalin powder and nano zinc oxide powder as materials and coating a layer of silicon dioxide on the surface of the super-fine tourmalin powder and nano zinc oxide powder, and the nontoxic conductive marine antifouling paint is prepared by dispersing composite antifouling composition, film-forming matter, conductive powder and addition agent. The conductive marine antifouling paint is applicable to antifouling protection of boats and ocean structures and has the good effect of preventing the adhesion of halobios. The invention is mainly suitable for antifouling protection of boats and ocean structures.

Description

technical field [0001] The invention belongs to the technical field of preparation and application of marine antifouling coatings, in particular to a preparation method and application of conductive marine antifouling coatings. 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, ma...

Claims

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Application Information

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IPC IPC(8): C09D5/24C09D5/16C09D127/12C09D133/14C09D163/00C09D175/04C09D183/07C09D125/14C09D133/00
Inventor 张占平齐育红
Owner DALIAN MARITIME UNIVERSITY
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