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Preparation method of low surface energy type hydrophobic marine antifouling paint

A marine antifouling, low surface energy technology, applied in antifouling/underwater coatings, coatings, paints containing biocides, etc. Stability, avoidance of contamination, uniform dispersion effect

Inactive Publication Date: 2018-04-10
周益铭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention: aiming at the existing common marine antifouling coatings which have certain adsorption force and hydrophilicity, the surface energy can be improved, which leads to the defect that marine organisms will adhere to the surface of the underwater hull and pollute the hull, and provide A preparation method of low surface energy hydrophobic marine antifouling coating

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0022]Weigh 16g of nano-titanium dioxide and 12g of nano-silicon dioxide, grind and pulverize them for 8 minutes, pass through a 100-mesh sieve, collect the sieved powder, and mix the sieved powder, distilled water, sesame oil and silane coupling agent in a mass ratio of 3:5:1:1 KH-570 was mixed and placed in a 500mL flask and stirred for 6 minutes, then the stirred flask was placed in an ultrasonic disperser for ultrasonic dispersion for 16 minutes, and after dispersion, it was heated and refluxed at a temperature of 80°C for 2 hours to obtain a reaction solution. After washing the reaction solution for 4 minutes, air-dry it naturally, grind and discharge the material to obtain a modified sieved powder, measure 45mL of xylene, 12mL of methyl methacrylate, 6mL of butyl acrylate and 1mL of acrylic acid and pour it into a mixture containing 2g of azobisisobutyl Shake in a constant pressure dropping funnel for nitrile for 6 minutes to obtain a self-made mixture, then add 35 mL of ...

example 2

[0024] Weigh 18g of nano-titanium dioxide and 14g of nano-silicon dioxide, mix, grind and pulverize for 9 minutes, pass through a 100-mesh sieve, collect the sieved powder, and mix the sieved powder, distilled water, sesame oil and silane coupling agent in a mass ratio of 3:5:1:1 KH-570 was mixed and placed in a 500mL flask and stirred for 7 minutes, then the stirred flask was placed in an ultrasonic disperser for ultrasonic dispersion for 18 minutes, and after dispersion, it was heated and refluxed at a temperature of 90°C for 3 hours to obtain a reaction solution. After washing the reaction solution for 5 minutes, air-dry it naturally, grind and discharge the material to obtain a modified sieved powder, measure 50mL of xylene, 14mL of methyl methacrylate, 7mL of butyl acrylate and 2mL of acrylic acid and pour it into a mixture containing 3g of azobisisobutyl Shake in a constant pressure dropping funnel of nitrile for 7min to obtain a self-made mixed solution, then add 45mL xy...

example 3

[0026] Weigh 20g of nano-titanium dioxide and 16g of nano-silicon dioxide, grind and pulverize them for 10 minutes, pass through a 100-mesh sieve, collect the sieved powder, and mix the sieved powder, distilled water, sesame oil and silane coupling agent in a mass ratio of 3:5:1:1 KH-570 was mixed and placed in a 500mL flask and stirred for 8 minutes, then the stirred flask was placed in an ultrasonic disperser for ultrasonic dispersion for 20 minutes, and after dispersion, it was heated and refluxed at a temperature of 100°C for 4 hours to obtain a reaction solution. After washing the reaction solution for 6 minutes, air-dry it naturally, grind and discharge the material to obtain a modified sieved powder, measure 55mL of xylene, 16mL of methyl methacrylate, 8mL of butyl acrylate and 3mL of acrylic acid and pour it into a mixture containing 4g of azobisisobutyl Shake in a constant pressure dropping funnel for nitrile for 8 minutes to obtain a self-made mixture, then add 55 mL ...

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Abstract

The invention relates to the technical field of paint preparation, and in particular relates to a preparation method of low surface energy type hydrophobic marine antifouling paint. Nano-titanium dioxide and nano-silica are jointly modified by a silane coupling agent, the agglomeration of the nano-titanium dioxide is reduced, the dispersion and the stability in the acrylic resin are facilitated, and by the addition of the modified nano-titanium dioxide, the hydrophobicity of the acrylic resin is improved, so that the fouling organisms are not easily adhered to the surface of the acrylic resin,or not tightly adhered to the surface of the acrylic resin, and the surface energy of the marine antifouling paint can be reduced. Si-O bonds are introduced into the resin, an added micron-sized pigment filler and the nano silica are mixed to facilitate improvement of the hydrophobicity of the resin, and chitosan, rosin, and cuprous oxide are continuously added to promote the adhesion of the resin to the modified nano-substances or other filler, thereby further reducing the surface energy of the marine antifouling paint. The low surface energy type hydrophobic marine antifouling paint has a wide range of application.

Description

technical field [0001] The invention relates to the technical field of paint preparation, in particular to a preparation method of a low surface energy hydrophobic marine antifouling paint. Background technique [0002] Hull fouling or fouling refers to the phenomenon that some marine organisms (such as bacteria, algae, bryozoans, etc.) will grow on the surface of the underwater hull after a ship sails at sea for a period of time. The attachment of marine organisms has always been a difficult problem in the shipping industry. It not only increases the weight of the hull, increases resistance and reduces shipping, but also increases operating costs. corrosion of equipment. At present, applying antifouling paint is the most effective and common method, and it is also the method with the most mature technology and the simplest process. [0003] Antifouling coatings mainly rely on the exudation of toxic biocides in the coating system, and use the toxic effects of biocides to k...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D5/16C09D7/62C09D7/65C08B37/08C08F220/12C08F220/18C08F220/06
CPCC08B37/003C08F220/12C08K2003/2241C08K2003/2248C08K2201/011C08L2205/035C09D5/1662C09D5/1687C09D133/064C08L5/08C08L93/04C08L91/06C08K9/06C08K9/08C08K3/22C08K3/36C08F220/1804C08F220/06
Inventor 周益铭杨亚生张建初
Owner 周益铭
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