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Water moistening type non-toxic antifouling paint and its preparation method

An anti-fouling coating and wetting technology, applied in anti-fouling/underwater coatings, polyester coatings, asphalt coatings, etc., can solve the problems of anti-fouling coatings polluting the environment, low resistance, etc., to protect the environment, reduce resistance, and reduce loss. Effect

Inactive Publication Date: 2005-05-25
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] One of the objectives of the present invention is to provide a water-wet non-toxic antifouling coating that is environmentally friendly and can prevent marine organisms from adhering to underwater facilities such as hulls, so as to overcome the defects of existing antifouling coatings that pollute the environment ; and the prepared coating has the properties of wet, smooth and low resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1. the preparation of water-wet polyurethane paint

[0037] 1. Preparation of water-absorbent primer. In 36.17 grams of polyurethane coatings, add 2.11 grams of particle diameters and be 50 mesh cross-linked sodium polyacrylate superabsorbent resins. After stirring evenly, apply it on the ceramic surface, and let it dry for 24 hours under natural conditions.

[0038] 2. Preparation of porous surface coatings. Add polyethylene glycol (molecular weight 600) 0.23 gram in 11.86 gram polyurethane paints, stir. Apply to the surface after the primer is dry. Let it dry completely for 24 hours.

[0039] 3. Performance testing. The contact angle between the coating surface and water was measured as 98.9°. After soaking in distilled water for 48 hours, the surface can form a smooth, soft surface. Take out and measure the contact angle between the surface layer and water to be 41.9°.

Embodiment 2

[0040] Embodiment 2. the preparation of water-wet polyurethane paint

[0041] 1. Preparation of water-absorbent primer. In 11.28 grams of polyurethane coatings, add 0.56 grams of particle diameters and be 500 mesh cross-linked polyacrylamides. After stirring evenly, apply it on the ceramic surface and leave it under natural conditions for 24 hours.

[0042] 2. Preparation of porous surface coatings. Add polyethylene glycol (molecular weight 600) 0.23 gram in 11.86 gram polyurethane paints, stir. Apply to the surface after the primer is dry. Let it dry completely for 24 hours.

[0043] 3. Performance testing. The contact angle between the coating surface and water was measured as 96.3°. After soaking in distilled water for 48 hours, the surface can form a smooth, soft surface. The contact angle between the surface layer and water was taken out to measure 43.1°.

Embodiment 3

[0044] Embodiment 3. the preparation of water-wet polyurethane paint

[0045] 1. Preparation of water-absorbent primer. In 36.17 grams of polyurethane coatings, add 2.11 grams of cross-linked sodium polyacrylate superabsorbent resin with a particle size of 1000 mesh. After stirring evenly, apply it on the surface of the iron plate, and place it under natural conditions for 24 hours.

[0046] 2. Preparation of porous surface coatings. Add polyethylene glycol (molecular weight 600) 0.52 gram in 10.83 gram polyurethane paints, stir. Apply to the surface after the primer is dry. Let it dry completely for 24 hours.

[0047] 3. Performance testing. The contact angle between the coating surface and water was measured as 84.1°. After soaking in distilled water for 48 hours, the surface can form a smooth, soft surface. Take out and measure the contact angle between the surface layer and water to be 38.9°.

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Abstract

A water-wettable non-toxic anti-fouling paint without pollution is composed of the hydroscopic priming paint containing paint and hydroscopic resin and the porous surface paint containing paint and water-soluble compound. It can prevent the ocean living things from being attached on object.

Description

technical field [0001] The invention belongs to the field of antifouling paints, in particular to a non-toxic and pollution-free antifouling paint wetted with water. Background technique [0002] The ship has been in the ocean environment for a long time, and the corrosion of metal by seawater is much stronger than that on land. Ship paint is a special coating on ships, which is used to protect ships, ships, offshore oil drilling platforms, wharf steel piles and other offshore steel structures from seawater corrosion. Antifouling paint is a special coating applied on the bottom of ships and marine underwater facilities. Its main function is to gradually release the poisonous material through the oozing, diffusion or hydrolysis of the paint film, so as to prevent the attachment of marine organisms to the bottom of the ship or marine underwater facilities. [0003] There are many kinds of attached organisms attached to the hull and marine underwat...

Claims

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Application Information

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IPC IPC(8): C09D5/16C09D111/00C09D133/00C09D167/00C09D175/04C09D195/00
Inventor 王国杰胡祥庆江雷
Owner INST OF CHEM CHINESE ACAD OF SCI
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