Long-acting water-soluble and environmentally-friendly steel structural protective coating

A technology for protecting coatings and steel structures, used in anti-corrosion coatings, alkali metal silicate coatings, coatings, etc., can solve the problems of reduced adhesion of epoxy resin, failure of anti-corrosion performance, easy aging and peeling, etc., to improve brittleness, Increase adhesion and good dispersibility

Active Publication Date: 2013-12-18
WUDA JUCHENG STRUCTURE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] What primer selects in this invention is water-based epoxy rust primer, the adhesion of this primer mainly relies on the bonding force of epoxy resin to the steel structure surface, belongs to physical adsorption, and adhesion is small, and because epoxy resin It belongs to organic resin, its weather resistance is poor, it is easy to age and fall off, and the adhesion will be further reduced with the aging of epoxy resin, resulting in the failure of anti-corrosion performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] A long-acting water-based environmental protection steel structure protective coating, the protective coating includes a water-based primer, a water-based intermediate coating, and a water-based top coating, the water-based primer is a water-based inorganic zinc silicate coating, and the water-based intermediate coating is a water-based silicone acrylic Coating, the water-based top coating is a water-based fluorocarbon coating;

[0087] The raw material composition of described water-based inorganic zinc silicate paint comprises A component, B component, and the weight ratio of described A component and B component is 1: 2.2, and the composition of described A component and its weight ratio are: High modulus potassium silicate inorganic nano resin 85 with a modulus of 5.3, a particle size of 5-20nm, and a solid content of 27.5%, a synthetic organic polymer emulsion of 13.7, and No. 1 auxiliary agent 1.3; wherein, the synthetic organic The polymer emulsion is one or more...

Embodiment 2

[0105] Step is with embodiment 1, and difference is:

[0106] In the water-based inorganic zinc silicate primer, the weight ratio of component A to component B is 1:1.25, and the composition and weight ratio of component A are as follows: the modulus is 5.6, and the particle size is 5-20nm , high-modulus potassium silicate inorganic nano-resin 88 with a solid content of 29.5%, synthetic organic polymer emulsion 10.6, No. 1 auxiliary agent 1.4; wherein, the composition and weight ratio of the No. 1 auxiliary agent are: No. 1 Defoamer 0.2, No. 1 dispersant 0.2, anti-sedimentation aid 0.3, thickener 0.4, rust inhibitor 0.3; the composition and weight ratio of the B component are: flaky zinc powder 95, superfine phosphorus Iron powder 5, superfine iron titanium powder 10, wollastonite 5, aluminum tripolyphosphate 5;

[0107] The raw material composition and weight ratio of water-based silicone acrylic paint are: silicon propylene base material 50, pigment 8, filler 19, No. 2 auxi...

Embodiment 3

[0110] Step is with embodiment 1, and difference is:

[0111] In the water-based inorganic zinc silicate primer, the weight ratio of component A to component B is 1:1.5, and the composition and weight ratio of component A are as follows: the modulus is 6.2, and the particle size is 5-20nm , high modulus potassium silicate inorganic nano-resin 95 with a solid content of 26%, synthetic organic polymer emulsion 3.8, No. 1 auxiliary agent 1.2; wherein, the composition and weight ratio of the No. 1 auxiliary agent are: No. 1 Defoamer 0.1, No. 1 dispersant 0.2, anti-sedimentation aid 0.4, thickener 0.3, rust inhibitor 0.2; the composition and weight ratio of the B component are: spherical zinc powder 35, flaky zinc powder 85, superfine iron and titanium powder 15, zinc boron composite oxide 10, zinc oxide 5;

[0112] The raw material composition and weight ratio of water-based silicone acrylic paint are: silicon propylene base material 55, pigment 10, filler 24, No. 2 auxiliary age...

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Abstract

The invention provides a long-acting water-soluble and environmentally-friendly steel structural protective coating. The long-acting water-soluble and environmentally-friendly steel structural protective coating is characterized in that a water-soluble inorganic zinc silicate coating is used as a primer of the protective coating; a water-soluble silicon-acrylic coating is used as an intermediate coating; a water-soluble fluorocarbon coating serves as a top coating; the water-soluble inorganic zinc silicate coating comprises the raw materials of high-modulus potassium silicate inorganic nanometer resin and synthesized organic polymer emulsion, wherein the high-modulus potassium silicate inorganic nanometer resin has the modulus of 5.3 to 6.2, and the particle diameter is 5 to 20nm; the synthesized organic polymer emulsion is composed of one or a plurality of water-soluble styrene-acrylic emulsion, water-soluble pure acrylic emulsion, water-soluble silicone acrylic emulsion, water-soluble fluorocarbon emulsion and water-soluble fluoro-silicon emulsion; and the water-soluble silicon-acrylic coating comprises the raw material of a silicon-acrylic matrix, wherein the silicon-acrylic matrix is one of a mixture of silicone acrylic emulsion and pure acrylic emulsion, the mixture of silicone acrylic emulsion and styrene-acrylic emulsion, and silicone acrylic emulsion. By adopting the long-acting water-soluble and environmentally-friendly steel structural protective coating, the corrosion resistance and weather resistance of the protective coating are obviously improved; the corrosion resisting effect can last for 20 years; and the weather resistance lasts for more than 20 years.

Description

technical field [0001] The invention relates to an anti-corrosion paint, in particular to a long-acting water-based environmental protection steel structure protective paint, which is suitable for improving the anti-corrosion and weather resistance performance of the paint. Background technique [0002] Steel structure is one of the most important building materials in infrastructure construction. With the deepening of the research and application of steel structure, people are paying more and more attention to the durability of steel structure, especially for various major infrastructure and Corrosion resistance of steel structures serving in different environments. Corrosion of steel structures has spread to all fields of the national economy and brought huge losses to the national economy. One of the most effective and commonly used methods for steel structure anti-corrosion is to coat the surface of the steel structure with an anti-corrosion coating to isolate the corro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D5/10C09D7/12C09D133/04C09D125/14C09D5/08C09D127/12
Inventor 刘巧云李北星万雄卫柯于赣
Owner WUDA JUCHENG STRUCTURE CO LTD
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