Polymer emulsion for waterborne metal anticorrosive coating and preparation method of polymer emulsion

A polymer emulsion and metal anti-corrosion technology, applied in the field of emulsion, can solve the problems of coating film voids, incompleteness, coating water resistance, poor salt spray resistance, etc., and achieve the effect of improving salt water resistance, water resistance, and density.

Active Publication Date: 2012-05-02
CHANGZHOU GUANGHUI CHEM
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The emulsifiers used above are all non-reactive emulsifiers. This means that the non-reactive emulsifiers are easy to migrate and adsorb on the interfa

Method used

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  • Polymer emulsion for waterborne metal anticorrosive coating and preparation method of polymer emulsion
  • Polymer emulsion for waterborne metal anticorrosive coating and preparation method of polymer emulsion

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Embodiment Construction

[0031]A polymer emulsion for water-based metal anti-corrosion coating of the present invention, its raw material is composed of the following components in mass percentage, including 13.0-18.0% dry oleic acid modified pre-polymerization intermediate, 16.0-20.0% acrylate monomer body, 2.0-3.0% functional monomer containing ketone carbonyl group, 2.5-5.0% modified acrylate monomer, 1.5-2.5% reactive emulsifier, 0.2-0.3% initiator, 0.8-1.0% The compound containing hydrazine group, 0.5-1.5% of water-based drier, 0.5-1.2% of volatile base and the balance of deionized water, the above-mentioned raw materials can be purchased in the market.

[0032] Wherein, the dry oleic acid modified prepolymerization intermediate of the present invention includes dry oleic acid, acrylic acid monomer, epoxy resin and stannous octoate and polymerization inhibitor used for esterification catalysis, dry oleic acid modified prepolymerization The raw materials of the polyintermediate include 18.0-20.0% ...

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Abstract

The invention relates to a polymer emulsion for a waterborne metal anticorrosive coating and a preparation method of the polymer emulsion. The polymer emulsion consists of the following raw materials in percentage by mass: 13.0-18.0% of drying oleic acid modified prepolymerized intermediates, 16.0-20.0% of acrylic monomers, 2.0-3.0% of functional monomers containing keto carbonyl groups, 2.5-5.0% of modified acrylic monomers, 1.5-2.5% of reactive emulsifier, 0.2-0.3% of initiator, 0.8-1.0% of compounds containing hydrazine groups, 0.5-1.5% of waterborne drier, 0.5-1.2% of volatile alkali and the balance deionized water. A soap-free emulsion polymerization process is adopted in the invention, the condensation of the keto carbonyl groups and the hydrazine groups and the oxidation polymerization, crosslinking and solidification reaction of double unsaturated bonds are generated in the filming process through introducing the keto carbonyl groups and the double unsaturated bonds on a molecular chain of waterborne polymer emulsion, so that a coating has the functions such as favorable saline water resistance, solvent resistance, rust prevention and the like.

Description

technical field [0001] The invention relates to a polymer emulsion for water-based metal anticorrosion coatings and a preparation method thereof, belonging to the technical field of emulsions. Background technique [0002] With the rapid development of global industrialization, environmental pollution has become increasingly serious. In recent years, in order to cope with global warming, countries around the world have introduced environmental protection policies and regulations to limit the discharge of pollutants. In this context, the water-based research of various solvent-based anti-corrosion coatings for metal anti-corrosion has been paid more and more attention by people, trying to prepare environmentally friendly anti-corrosion coatings with performance comparable to solvent-based metal anti-corrosion coatings by using water as the dispersion medium. Type anti-corrosion coatings, not only save oil resources, but also avoid the pollution of volatile organic compounds t...

Claims

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Application Information

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IPC IPC(8): C08F220/30C08F220/06C08F220/18C08F220/28C08F222/38C08F216/36C08F216/34C08F2/28C09D133/14C09D133/02C09D133/08C09D5/08
Inventor 赵绍洪张辉耀蒋南昌陆小英殷敏萱
Owner CHANGZHOU GUANGHUI CHEM
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