Water epoxy resin coating with bacterium-resistant function and preparation method thereof

A water-based epoxy resin and epoxy resin technology, applied in epoxy resin coatings, antifouling/underwater coatings, coatings, etc., to achieve good antibacterial effect, easy industrialization, and good stability

Inactive Publication Date: 2008-02-13
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Examples

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Effect test

Embodiment 1

[0029] Equip the three-necked bottle with a stirring device, a thermometer and a rubber stopper. First mix the bisphenol A type epoxy resin and polyethylene glycol (2K molecular weight) in a molar ratio of 1:1, add the solution to the three-necked bottle and stir quickly, wait for the reaction temperature to reach 170°C, add 1% ammonium persulfate solution After 6 hours of reaction, the water-based epoxy resin emulsifier can be generated. Take 15% of the water-based epoxy resin emulsifier, add 85% epoxy resin containing 5% ethanol, and form an emulsion under high-speed stirring. Subsequently, an equal volume of water is added to the epoxy resin emulsion to finally form a water-based epoxy resin emulsion with a solid content of 50%. Add 0.1% water-soluble nano-Ag (wherein the ratio of gelatin and Ag is 1: 1) in the water-based epoxy resin emulsion obtained, obtain the water-based epoxy resin coating with antibacterial effect, performance test: nano-Ag average particle size 5n...

Embodiment 2

[0032] Equip the three-necked bottle with a stirring device, a thermometer and a rubber stopper. First, mix the bisphenol A epoxy resin and polyethylene glycol (6K molecular weight) in a molar ratio of 1:1 and add the solution to the three-necked bottle for rapid stirring. When the reaction temperature reaches 170°C, add 0.1% ammonium persulfate solution to react After 10 hours, a water-based epoxy resin emulsifier can be produced. Take 15% of the water-based epoxy resin emulsifier, add 85% epoxy resin containing 5% ethanol, and form an emulsion under high-speed stirring. Subsequently, water equal to the volume of the emulsion is added to the epoxy resin emulsion to finally form a water-based epoxy resin emulsion with a solid content of 50%. Add 0.1% water-soluble nano-Ag (wherein the ratio of gelatin and Ag is 1: 1) in the water-based epoxy resin emulsion obtained, obtain the water-based epoxy resin coating with antibacterial effect, performance test: nano-Ag average particl...

Embodiment 3

[0035] Equip the three-necked bottle with a stirring device, a thermometer and a rubber stopper. First, mix the bisphenol A epoxy resin and polyethylene glycol (6K molecular weight) in a molar ratio of 1:1 and add the solution to the three-necked bottle for rapid stirring. When the reaction temperature reaches 170°C, add 1% ammonium persulfate solution to react After 14 hours, a water-based epoxy resin emulsifier can be produced. Take 15% of the water-based epoxy resin emulsifier, add 85% epoxy resin containing 5% ethanol, and form an emulsion under high-speed stirring. Subsequently, water equal to the volume of the emulsion is added to the epoxy resin emulsion to finally form a water-based epoxy resin emulsion with a solid content of 50%. Add 1% water-soluble nano-Ag (wherein the ratio of gelatin and Ag is 1: 1) in the water-based epoxy resin emulsion obtained, obtain the water-based epoxy resin coating with antibacterial effect, performance test: nano-Ag average particle di...

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Abstract

The invention relates to a bacteriostasic water epoxy resin paint and a method to prepare such paint. The paint consists of water epoxy dope and water-soluble nano Ag. In terms of the preparation process, (1) epoxy resin and polyethylene glycol are heated for reaction under the action of catalyst to achieve water epoxy resin emulsion; (2) epoxy resin and cosolvent are added into the water epoxy resin emulsion to achieve epoxy resin emulsion; (3) water is added into the epoxy resin emulsion, and water epoxy resin emulsion is achieved by phase-reversal technology; (4) water-soluble nano Ag is added into the water epoxy resin emulsion to achieve bacteriostasic water epoxy resin paint; (5) or the paint is evenly mixed with ethylenediamine and triethylene tetramine pro rata and then solidified. The method is simple and easy to implement; the epoxy resin paint has sound water solubility, and the nano Ag wherein has sound dispersibility; besides, a little Ag can be added to achieve better bacteriostasic effect.

Description

technical field [0001] The invention belongs to the field of epoxy resin coatings, in particular to a water-based epoxy resin coating with antibacterial effect and a preparation method thereof. Background technique [0002] Epoxy resins have excellent adhesion, thermal stability, chemical resistance, insulation, and mechanical strength, and are widely used in various fields such as coatings, adhesives, and composite materials. However, commonly used epoxy resins are non-water-soluble, and are only soluble in organic solvents such as aromatic hydrocarbons, ketones, and alcohols, while organic solvents are not only expensive, but also volatile and pollute the environment. This shortcoming limits environmental protection. Large-scale use of epoxy resins in coatings and adhesives industries. [0003] In recent years, people have paid more and more attention to environmental protection. Many countries have successively promulgated regulations to control volatile organic compound...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/14C09D5/02
Inventor 汪山献松周刚杜卫平陈艳范珩王政张幼维吴承训
Owner DONGHUA UNIV
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