A kind of construction method of anti-corrosion coating

A construction method and anti-corrosion coating technology, applied in the field of materials, can solve the problems of easy peeling of composite coatings, inability to fully fit, and attenuation of FRP strength, and achieve the effects of not easy peeling, good impact resistance, and reduced viscosity.

Active Publication Date: 2017-09-22
YUGREAT (BEIJING) INTERNATIONAL TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its corrosion resistance is not strong enough, especially when used in water, especially in salt water for a long time, due to the penetration of salt water and the swelling of FRP, the strength of FRP will be significantly attenuated
And the shear strength between the layers is poor, the shear strength between the resin and the glass fiber cloth is only borne by the resin, which makes the composite coating easy to peel off
[0005] The other is HDPE. The laying of HDPE must be flat. If the base layer is not flat, there is no way to fit it completely, which will easily lead to leakage, and the HDPE lap joints are welded and lapped, which is very fragile and easy to leak

Method used

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  • A kind of construction method of anti-corrosion coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] 1. Prepare solvent-free epoxy resin coating and rubber asphalt waterproof coating.

[0085] The ratio of each component in the solvent-free epoxy resin coating is: bisphenol A epoxy resin 80kg; polyurethane modified epoxy resin 20kg; epoxy reactive diluent (dodecyl glycidyl ether) is 10kg; leveling agent (polyacrylate) is 0.5kg; rheology additive (meteorological silica) is 2kg; dispersant is 1kg; substrate wetting agent is 0.7kg; defoamer is 0.3kg; White powder: 8kg; talc powder: 30kg; wet process sericite powder: 30kg; wollastonite powder: 30kg; ceramic powder: 15kg; component B: aliphatic modified polyamine: 110kg.

[0086]The ratio of each component in the rubber asphalt waterproof coating is: 90kg of vulcanized rubber modified anionic emulsified asphalt (including: 87.3kg (97%) of asphalt and 2.7kg (3%) of styrene-butadiene-benzene Ethylene block copolymer); 10kg of rubber emulsion (chloroprene rubber); 0.1kg of surfactant (rosin soap); 0.1kg of dispersant (condens...

Embodiment 2

[0090] 1. Prepare solvent-free epoxy resin coating and rubber asphalt waterproof coating.

[0091] The ratio of each component in the solvent-free epoxy resin coating is: bisphenol A epoxy resin 90kg; rubber modified epoxy resin 10kg; epoxy reactive diluent 15kg, wherein, dodecyl glycidyl ether (10) kg , 1,4-butanediol diglycidyl ether (5) kg; leveling agent (polyorganosiloxane) is 1 kg; rheology additive is 4 kg, of which, N-methylpyrrolidone (2) kg, hydrogenated Castor oil (1) kg; dispersant is 2 kg; substrate wetting agent is 2 kg; defoamer is 1.5 kg; ultraviolet absorber is 3 kg; titanium dioxide is 10 kg; ; Wollastonite powder: 20kg; ceramic powder: 5kg; B component: polyamide: 115kg.

[0092] The ratio of each component in the rubber asphalt waterproof coating is: 50kg of vulcanized rubber modified anionic emulsified asphalt (including: 42.5kg (85%) of asphalt and 7.5kg (15%) of binary ethylene propylene rubber Olefinic elastomer and EPDM rubber); 50kg of rubber emulsi...

Embodiment 3

[0096] 1. Prepare solvent-free epoxy resin coating and rubber asphalt waterproof coating.

[0097] The ratio of each component in the solvent-free epoxy resin coating is: bisphenol A epoxy resin 100kg;

[0098] Epoxy active diluent 20kg, wherein, dodecyl glycidyl ether (10) kg, 1,4-butanediol diglycidyl ether (4) kg, ethylene glycol diglycidyl ether (6) kg; Leveling agent is 2kg, wherein, polyacrylate is (1) kg, polyorganosiloxane is (1) kg; rheology additive is 6 kg, wherein, meteorological silica (3) kg, N-methylpyrrolidone (1); kg, hydrogenated castor oil (2) kg; dispersant is 3kg; substrate wetting agent is 3kg; defoamer is 3kg; ultraviolet absorber is 1.5kg; titanium dioxide is 15kg; talcum powder is 60kg; Wet-process sericite powder is 20kg; wollastonite powder is 20kg; component B is 120kg, in which aliphatic modified polyamine:polyamide=4:1.

[0099] The ratio of each component in the rubber asphalt waterproof coating is:

[0100] 30kg of vulcanized rubber-modified ...

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Abstract

The invention provides a construction method of an anti-corrosion coating, comprising: constructing a rubber asphalt waterproof coating on a base surface; further constructing a solvent-free epoxy resin coating on the rubber asphalt waterproof coating, the solvent-free epoxy The resin coating is compounded with the rubber asphalt waterproof coating to form an anti-corrosion coating on the base surface; the solvent-free epoxy resin coating includes A component and B component; the A component includes epoxy resin, Epoxy reactive diluents, additives, fillers and pigments; the B component includes modified polyamines; the epoxy reactive diluents are lauryl glycidyl ether, 1,4-butanediol diglycidyl ether , at least one of ethylene glycol diglycidyl ether; the additive includes at least one of leveling agent, rheological aid, dispersant, substrate wetting agent, defoamer and ultraviolet absorber; the filler Including titanium dioxide, talc powder, wet process sericite powder, wollastonite powder and ceramic powder.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a construction method of an anti-corrosion coating. Background technique [0002] With the development of the national economy, a large number of new factories and mines have been put into operation. Due to technological reasons, a large amount of industrial sewage will be produced. These untreated industrial sewage contain a large amount of corrosive or harmful chemicals, which not only pollute the At the same time, it poses a huge threat to human health. Therefore, factories and mines are required to build or rebuild sewage or wastewater treatment facilities. [0003] There are two conventional anti-corrosion treatment structures: [0004] One is the fiberglass lining, which is a composite material made of glass fiber cloth and epoxy resin. It has the characteristics of integrity, good impermeability and reasonable cost. However, its corrosion resistance is not strong eno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/08C09D163/00C09D7/12C09D195/00C09D121/00E04B1/64
Inventor 李晓亮罗莹莹王彦秋
Owner YUGREAT (BEIJING) INTERNATIONAL TECHNOLOGY CO LTD
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