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Water-based high-temperature-resistant long-acting anticorrosive paint and preparation method thereof

A long-term anti-corrosion and high-temperature-resistant technology, applied in anti-corrosion coatings, fire-proof coatings, epoxy resin coatings, etc., to avoid toxic and harmful gases and VOC, improve cross-linking degree and compactness, and prevent flammability and explosion

Inactive Publication Date: 2020-03-27
无锡市太湖防腐材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But, the water-based paint that can adapt to such severe conditions has not been seen before, and the present invention fills up this market gap

Method used

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  • Water-based high-temperature-resistant long-acting anticorrosive paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The water-based high-temperature-resistant long-lasting anticorrosion coating of this embodiment includes component A and component B, and the mass ratio of the two is 6:1.

[0028] The first component is composed of the following raw materials in parts by mass: 42 parts of water-based phenolic epoxy resin; 2 parts of carbon black; 5 parts of antirust pigment; composed of 5 parts of sericite powder, 2 parts of talcum powder, and 8 parts of barium sulfate A total of 15 parts of body pigments; 0.3 parts of anti-settling agent; 20 parts of deionized water; 0.5 parts of epoxy silane coupling agent; 3.4 parts of other additives consisting of 0.3 parts of anti-flash rust agent and 0.8 parts of thickener.

[0029] The B component is composed of the following raw materials in parts by mass: 90 parts of curing agent; 10 parts of propylene glycol methyl ether.

[0030] Wherein, the antirust pigment is a mixture of modified calcium phosphomolybdate and aluminum polyphosphate, and...

Embodiment 2

[0047] The water-based high-temperature-resistant long-lasting anticorrosion coating of this embodiment includes component A and component B, and the mass ratio of the two is 4:1.

[0048]The first component is composed of the following raw materials in parts by mass: 55 parts of water-based phenolic epoxy resin; 3 parts of carbon black; 10 parts of antirust pigment; 8 parts of sericite powder, 3 parts of talcum powder, and 9 parts of barium sulfate 20 parts of body pigment in total; 0.6 parts of anti-settling agent; 12 parts of deionized water; 1 part of epoxy silane coupling agent; A total of 6.3 parts of other additives consisting of 1 part of anti-flash rust agent and 1.1 part of thickener.

[0049] The B component is composed of the following raw materials in parts by mass: 80 parts of curing agent; 20 parts of propylene glycol methyl ether.

[0050] Wherein, the antirust pigment is a mixture of modified calcium phosphomolybdate and aluminum polyphosphate, and the mass r...

Embodiment 3

[0067] The water-based high-temperature-resistant long-lasting anticorrosion coating of this embodiment includes component A and component B, and the mass ratio of the two is 5:1.

[0068] The first component is composed of the following raw materials in parts by mass: 48 parts of water-based phenolic epoxy resin; 2.5 parts of carbon black; 8 parts of antirust pigment; composed of 6 parts of sericite powder, 2.5 parts of talcum powder, and 8.5 parts of barium sulfate 17 parts of body pigment in total; 0.5 parts of anti-settling agent; 18 parts of deionized water; 0.8 parts of epoxy silane coupling agent; 5 parts in total, 0.5 parts of anti-flash rust agent, 1 part of thickener, and 1 part of other additives.

[0069] The B component is composed of the following raw materials in parts by mass: 83 parts of curing agent; 17 parts of propylene glycol methyl ether.

[0070] Wherein, the antirust pigment is a mixture of modified calcium phosphomolybdate and aluminum polyphosphate, ...

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Abstract

The invention discloses a water-based high-temperature-resistant long-acting anticorrosive paint and a preparation method thereof. The water-based high-temperature-resistant long-acting anticorrosivepaint comprises a component A and a component B, wherein the component A is prepared from the following raw materials: film-forming substance water-based novolac epoxy resin, carbon black, an antirustpigment, an extender pigment containing sericite powder, an anti-settling agent, deionized water, an epoxy silane coupling agent and other auxiliaries; the component B is prepared from the followingraw materials: a curing agent and propylene glycol monomethyl ether; and the mass ratio of the component A to the component B is (4-6): 1. The water-based novolac epoxy resin is used as a film-formingsubstance and is matched with the sericite powder, and excellent permeation resistance is provided for the coating by virtue of a scaly structure; and the epoxy silane coupling agent is added to improve the crosslinking degree and compactness of the coating, thereby greatly enhancing the heat resistance, chemical resistance, hardness and wear resistance of the coating and overcoming the defect that the existing water-based paint can not have high temperature resistance and long-acting corrosion resistance simultaneously.

Description

technical field [0001] The invention belongs to the technical field of industrial anticorrosion coatings, in particular to a water-based high temperature resistant long-acting anticorrosion coating and a preparation method thereof. Background technique [0002] The flue gas from the desulfurization tower of waste incineration power plant contains acid gas. The temperature at the inlet of the flue gas absorption tower is as high as 160°C to 180°C for a long time, and as high as 250°C for a short term, and there is a certain dry and wet interface; the flue gas temperature at the outlet of the absorption tower is close to the acid dew point temperature. According to relevant tests, usually SO 2 Emission concentration≤350mg / Nm 3 . After desulfurization by lime water washing method on site, H may still remain in the washing liquid. 2 SO 4 , HCl, HF and other strong corrosive solutions, and the high temperature and high humidity environment further intensifies the corrosion o...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08
CPCC08K2003/3045C08K2003/327C08L2201/08C08L2205/035C09D5/084C09D5/18C09D163/00C08L83/12C08L33/04C08L75/04C08K13/06C08K7/00C08K3/04C08K3/34C08K3/22C08K3/32C08K3/30C08K3/346C08K5/5435
Inventor 刘嘉东周妍
Owner 无锡市太湖防腐材料有限公司
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