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Waterborne inorganic heat-insulating and corrosion-resistant coating and preparation method thereof

An anti-corrosion coating and inorganic technology, applied in anti-corrosion coatings, alkali metal silicate coatings, coatings, etc., can solve problems such as low adhesion between the heat insulation layer and the anti-corrosion layer, reduced service life of metal structures, and complicated construction. It achieves the effects of excellent heat insulation performance, good flame retardancy and low thermal conductivity

Active Publication Date: 2015-07-08
泉州三欣新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If spraying or brushing anti-corrosion paint on the cladding layer, the construction is complicated and the bonding force between the heat insulation layer and the anti-corrosion layer is lower, and it is easy to fall off, resulting in a reduction in the life of the metal structure building.

Method used

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  • Waterborne inorganic heat-insulating and corrosion-resistant coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1) Preparation of airgel aqueous slurry

[0025] Take 1 mass part of sodium octyl sulfonate surfactant and dissolve it in 100 mass parts of water, add 25 mass parts of airgel powder, and disperse for 2 hours under high-speed stirring at 800 r / min to obtain airgel aqueous slurry ;

[0026] (2) Preparation of thermal insulation inorganic coating

[0027] According to 100 parts by mass of potassium silicate water glass, 50 parts by mass of zirconia nano colloid solution, 1 part by mass of γ-glycidyloxypropyl trimethoxysilane, 8 parts by mass of pure water, 5 parts by mass of zinc powder, 100 parts by mass SiO 2 The ratio of airgel water-based slurry, 8 parts by mass of silicone water-based defoamer, and 0.5 parts by mass of carboxymethylcellulose sodium water-based thickener is mixed together, and the water-based slurry is made by high-speed dispersion, grinding and filtration. Inorganic thermal insulation and anticorrosion coating.

Embodiment 2

[0029] (1) Preparation of airgel aqueous slurry

[0030] Take 2 parts by mass of ammonium laureth sulfate surfactant and dissolve it in 100 parts by mass of water, add 25 parts by mass of airgel powder, and disperse for 1 hour under high-speed stirring at 1500 r / min to obtain airgel water-based slurry;

[0031] (2) Preparation of thermal insulation inorganic coating

[0032] According to 100 parts by mass of lithium silicate water glass, 150 parts by mass of silicon oxide nano colloidal solution, 10 parts by mass of vinyltrimethoxysilane, 10 parts by mass of pure water, 100 parts by mass of aluminum powder, 10 parts by mass of SiO 2 The ratio of airgel water-based slurry, 5 parts by mass of silicone water-based defoamer, and 2 parts by mass of polyacrylamide water-based thickener, mixing all materials together, high-speed dispersion, grinding, and filtration to make water-based inorganic heat insulation Anti-corrosion coating.

Embodiment 3

[0034] (1) Preparation of airgel aqueous slurry

[0035] Take 0.5 parts by mass of tallow trimethylammonium chloride surfactant and dissolve it in 100 parts by mass of water, add 25 parts by mass of airgel powder, and disperse for 0.2h under high-speed stirring at 2000 r / min to obtain airgel Gel aqueous slurry;

[0036] (2) Preparation of thermal insulation inorganic coating

[0037] According to 100 parts by mass of sodium silicate water glass, 100 parts by mass of silica nano colloidal solution, 5 parts by mass of hexamethyldisilazane, 20 parts by mass of pure water, 300 parts by mass of aluminum powder, 150 parts by mass of SiO 2 The ratio of airgel water-based slurry, 2 parts by mass of polyether water-based defoamer, and 5 parts by mass of lethionite water-based thickener is mixed together, and the water-based inorganic separator is made by high-speed dispersion, grinding and filtration. Thermal anti-corrosion coatings.

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Abstract

The invention discloses a waterborne inorganic heat-insulating and corrosion-resistant coating and a preparation method thereof. The coating is prepared from alkaline silicates, an inorganic oxide nano-sol solution, a silane coupling agent, metal powder, SiO2 aerogel waterborne slurry, a waterborne defoaming agent, a waterborne thickener, and the like. Compared with existing organic polymer aerogel composite coatings and common silicate aerogel composite coatings, the waterborne inorganic heat-insulating and corrosion-resistant coating disclosed by the invention has the advantages and characteristics of low thermal conductivity, good water resistance, good flame retardancy and fire resistance, environmental friendliness and energy conservation. According to the invention, an aerogel and an inorganic waterborne coating material are compounded together, and the convenience and environmental friendliness of inorganic waterborne coating construction and the good heat-insulating property of the aerogel can be fully combined, so that the coating can not be affected by space, area and heat-insulating objects, therefore, the coating is applied to the heat-insulating and corrosion-resistant treatment of building external walls and metal surfaces in various occasions such as petrochemical engineering, warehouses, workshops and ship and the like.

Description

technical field [0001] The invention relates to an inorganic water-based heat-insulating and anti-corrosion paint integrating heat-insulation and anti-corrosion. Background technique [0002] At present, the production of my country's coatings is mainly based on architectural coatings and industrial coatings, and the development of functional coatings is not perfect. For the heat insulation and anticorrosion of the metal structure surface, it is all based on anticorrosion. Generally, the inner and outer walls of the metal structure are sprayed or brushed with anticorrosive coatings of various properties to form an inner and outer anticorrosion layer. In terms of heat insulation, the surface is usually covered with thermal insulation materials to play the role of thermal insulation. [0003] Among the existing industrial anti-corrosion coatings, the vast majority are still on solvent-based coatings. Aromatic hydrocarbon solvents such as xylene and trimethylbenzene pose a gre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/04C09D1/00C09D5/10C09D7/12
Inventor 刘云晖其他发明人请求不公开姓名
Owner 泉州三欣新材料科技有限公司
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