Water-based innocuous long-acting antifouling coating and preparation method thereof

An antifouling paint, water-based technology, applied in the field of paint, can solve the problems of seaweed death, damage to the ecological environment, etc., and achieve the effect of improving antifouling activity and specific surface area

Active Publication Date: 2011-01-05
YEJIAN NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this new type of material that prevents harm from sea animals or other living things on our ocean' s bottom it uses tiny holes called microscopic channels filled up with small silicate beads made of calcium carbonate (CaCO3) crystals). These materials have strong affinity for certain types of algae found at depth below their roots inside seawater fish tanks where they live. They are also able to stop off any unwanted substances like plankton shellfish during harvesting processes. By adding these unique properties into an effective solution we create a safer and longer lasting way to prevent damage caused by aquatic life such as corrosion due to saltwater immersion.

Problems solved by technology

This patented technical problem addressed in this patents relates to finding ways to reduce damage caused during cleanup operations while maintaining good visibility through anti-biofilm paints applied over water surfaces like boats and shipping vessels.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Weigh 100 grams of biologically active nano-silver / modified starch porous composite particles, 200 grams of titanium dioxide, 50 grams of talcum powder, 50 grams of barium sulfate, 10 grams of organic antifouling agent, 5 grams of defoamer, 5 grams of wetting dispersant, 20 grams of dispersant, stirred at a high speed of 3000 rpm for 1 hour, added 500 grams of water-based hydroxyacrylic resin, dispersed for 2 hours at 1000 rpm, filtered and packaged to obtain water-based non-toxic long-lasting antifouling Coating A component.

[0028] Mix 60 grams of water-based isocyanate crosslinking agent B component with 940 grams of water-based non-toxic long-lasting antifouling coating A component, and cure at 50°C for 2 hours to obtain a long-lasting antifouling coating.

[0029] The coating adhesion is grade 0, the pencil hardness is 3H, the artificial accelerated aging resistance time is ≥1000 hours, and the antifouling time can reach 5-10 years.

Embodiment 2

[0031] Weigh 100 grams of biologically active nano-zinc oxide / carboxylated cellulose porous composite particles, 100 grams of biologically active nano-zinc / carboxylated cellulose porous composite particles, 10 grams of defoaming agent, 10 grams of wetting agent, 15 grams of dispersant agent, stirred at high speed for 1 hour, added 200 grams of water-based hydroxyl polyester resin, 400 grams of water-based hydroxyl silicone modified acrylate resin, dispersed at 1500 rpm for half an hour, added 10 grams of defoamer, 5 grams of leveling agent agent, 10 grams of film-forming aids, dispersed for 10 minutes under the condition of 500 rpm, filtered and packaged to obtain component A of water-based nontoxic long-lasting antifouling paint.

[0032] Mix 100 grams of water-based isocyanate crosslinking agent B component with 900 grams of water-based non-toxic long-lasting antifouling coating A component, and cure at room temperature for 24 hours to obtain a long-lasting antifouling coatin...

Embodiment 3

[0035] Weigh 400 grams of biologically active nano-silver / nanometer zinc borate / chitosan porous composite particles, 100 grams of water-based urethane-acrylate resin, 100 grams of water-based hydroxy-acrylate resin, 100 grams of water-based hydroxy-alkyd-acrylate resin 100 grams of water-based hydroxyl fluorine-containing acrylate resin were dispersed for half an hour at 500 rpm, filtered and packaged to obtain component A of water-based nontoxic long-lasting antifouling paint.

[0036] Mix 200 grams of water-based isocyanate cross-linking agent B component with 800 grams of water-based non-toxic long-lasting antifouling coating A, and cure at 80°C for 1 hour to obtain a long-lasting antifouling coating.

[0037] The coating adhesion is grade 0, the pencil hardness is 2H, the artificial accelerated aging resistance time is ≥1000 hours, and the antifouling time can reach 5-10 years.

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Abstract

The invention relates to a water-based innocuous long-acting antifouling coating and a preparation method and application thereof. The coating contains inorganic nano/biopolymer porous composite particles with antifouling bioactivity, water-based hydroxyl polymer resin, water-based isocyanate cross-linker, nonessential pigment and filler and nonessential aid. The water-based isocyanate cross-linker is added into mixed solution of the inorganic nano/biopolymer porous composite particles and the water-based hydroxyl polymer resin, the inorganic nano/biopolymer porous composite particles with antifouling bioactivity are uniformly dispersed in a polymer coating in a chemical bond combination mode by in-situ chemical cross-linking reaction, and marine fouling organisms are easily attached to the bioactive nano particles so that the nano particles with sterilization function can kill and remove the fouling organisms and the antifouling function of the coating is realized. The coating can bewidely applied to antifouling coatings of ships, bridges, underwater facilities, submarine cables, floating bridges, nets and the like.

Description

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Claims

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Application Information

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Owner YEJIAN NEW MATERIAL
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