Construction method of novel anticorrosive coating layer

A construction method and anti-corrosion coating technology, which is applied in the field of materials, can solve the problems of FRP strength attenuation, inability to fully fit, and insufficient corrosion resistance, etc., and achieve the effect of reducing viscosity, not easy to peel off, and good adhesion

Active Publication Date: 2015-09-30
YUGREAT (BEIJING) INTERNATIONAL TECHNOLOGY CO LTD
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  • Abstract
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  • 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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  • Construction method of novel anticorrosive coating layer

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; rheological additive (meteorological silica) is 2kg; dispersant is 1kg; substrate wetting agent is 0.7kg; defoamer is 0.3kg; UV absorber is 1kg; 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...

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 a novel anticorrosive coating layer. The method comprises the following steps: constructing a rubber asphalt waterproof coating layer on a base surface; and further constructing a solvent-free epoxy resin coating on the rubber asphalt waterproof coating layer, and compounding the solvent-free epoxy resin coating with the rubber asphalt waterproof coating layer in order to form the anticorrosive coating layer on the base surface. The solvent-free epoxy resin coating comprises a component A and a component B; the component A comprises epoxy resin, an epoxy active diluent, an additive, a filler and a pigment; the component B comprises modified polyamine; the epoxy active diluent is at least one of dodecyl glycidyl ether, 1,4-butanediol diglycidyl ether and ethylene glycol diglycidyl ether; the additive comprises at least one of a leveling agent, a rheological assistant, a dispersant, a substrate wetting agent, an antifoaming agent and an ultraviolet ray absorber; and the filler comprises titanium dioxide, talcum powder, wet 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 a novel 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 stron...

Claims

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Application Information

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Patent Type & Authority Applications(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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