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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

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

Example Embodiment

[0023] Example 2

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

Example Embodiment

[0025] Example 3

[0026] Weigh 20g of nano-titanium dioxide and 16g of nano-silica, mix, grind and grind 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 at 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. After dispersion, it was heated and refluxed for 4 hours at a temperature of 100°C to obtain a reaction solution. After washing the reaction solution for 6 minutes, it is naturally air-dried and the material is grinded to obtain a modified sieved powder. Measure 55 mL of xylene, 16 mL of methyl methacrylate, 8 mL of butyl acrylate and 3 mL of acrylic acid, mix and pour into the mixture containing 4 g of azobisisobutyl Shake the nitrile constant pressure dropping funnel for 8 minutes to obtain a self-made mixture. Then add 55 ...

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PUM

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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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