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A kind of anti-corrosion paint resistant to high temperature wear and its preparation method and application

A technology for anti-corrosion coatings and high temperature resistance, applied in the direction of anti-corrosion coatings, fire-proof coatings, epoxy resin coatings, etc., to achieve good dispersion effect, avoid agglomeration, high density and flexibility

Active Publication Date: 2022-07-12
深圳优易材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Graphene mainly improves the anti-corrosion performance of the coating through physical shielding and electrochemical protection. Uniform distribution in the coating is the key to improving the anti-corrosion performance of the coating. Covalent modification, non-covalent modification, doping Although modification and in-situ polymerization modification can make graphene and its derivatives uniformly dispersed, there are obvious shortcomings.

Method used

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  • A kind of anti-corrosion paint resistant to high temperature wear and its preparation method and application
  • A kind of anti-corrosion paint resistant to high temperature wear and its preparation method and application
  • A kind of anti-corrosion paint resistant to high temperature wear and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A high-temperature wear-resistant anti-corrosion coating, comprising the following raw materials in parts by weight:

[0040]100 parts of furan modified epoxy resin, 5 parts of epoxy polyether-polysiloxane, 20 parts of reactive diluent, 10 parts of filler, 0.4 parts of amino functional graphene, 3 parts of auxiliary agent, 3 parts of curing agent, 30 parts of solvent; the auxiliary agents are 1 part of coupling agent, 1 part of defoamer, and 1 part of dispersant;

[0041] The furan-modified epoxy resin is prepared by mixing the furan-modified epoxy resins of formula (I) and formula (II) according to a weight ratio of 100:1;

[0042]

[0043] where n is 40 and R 1 is selected from the structure represented by formula (a):

[0044]

[0045] The epoxy polyether-polysiloxane is obtained by the following preparation method. The hydrogen-containing silicone oil and the epoxy-terminated allyl polyether are in a molar ratio (n(Si-H):n(C=C)) as Add 1:1.05 into the react...

Embodiment 2

[0052] A high-temperature wear-resistant anti-corrosion coating, comprising the following raw materials in parts by weight:

[0053] 100 parts of furan modified epoxy resin, 8 parts of epoxy polyether-polysiloxane, 30 parts of reactive diluent, 6 parts of filler, 0.5 part of isocyanate functionalized graphene, 5 parts of auxiliary agent, 4 parts of curing agent, 40 parts of solvent; the auxiliary agents are 0.5 part of leveling agent, 1 part of coupling agent, 1 part of defoamer, 1 part of dispersant, and 0.5 part of wetting agent;

[0054] The furan-modified epoxy resin is prepared by mixing the furan-modified epoxy resins of formula (I) and formula (II) according to a weight ratio of 100:0.5;

[0055]

[0056] where n is 60, R 1 is selected from the structure represented by formula (b):

[0057]

[0058] The epoxy polyether-polysiloxane is obtained by the following preparation method. The hydrogen-containing silicone oil and the epoxy-terminated allyl polyether are i...

Embodiment 3

[0066] A high-temperature wear-resistant anti-corrosion coating, comprising the following raw materials in parts by weight:

[0067] 100 parts of furan modified epoxy resin, 10 parts of epoxy polyether-polysiloxane, 30 parts of reactive diluent, 6 parts of filler, 0.6 part of amino functional graphene, 7 parts of auxiliary agent, 5 parts of curing agent, 50 parts of solvent; the auxiliary agents are 1 part of leveling agent, 2 parts of coupling agent, 2 parts of defoamer, 1 part of dispersant, and 1 part of wetting agent;

[0068] The furan-modified epoxy resin is formed by mixing the furan-modified epoxy resins of formula (I) and formula (II) according to a weight ratio of 100:1.5;

[0069]

[0070] where n is 55 and R 1 is selected from the structure represented by formula (a):

[0071]

[0072] The epoxy polyether-polysiloxane is obtained by the following preparation method. The hydrogen-containing silicone oil and the epoxy-terminated allyl polyether are in a molar...

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Abstract

The invention provides a high-temperature wear-resistant anti-corrosion coating and a preparation method and application thereof. A combination of furan-modified epoxy resins with a specific structure is selected as a film-forming substance, and the high-temperature and corrosion-resistant properties of epoxy resin and furan resin are used. performance, and the selection of functionalized graphene as the thermal conductivity and anti-corrosion components, and the selection of epoxy polyether-polysiloxane as the dispersing functional component, the good dispersion of graphene, fillers and other components is achieved, and the prepared A coating with good appearance and compactness, the coating has excellent high temperature resistance, wear resistance, corrosion resistance and other properties, which can be applied to the high temperature anti-corrosion requirements of the four-tube surface of the boiler. At the same time, the process is simple, the operation is simple, and the curing conditions are mild , the time required for complete curing is shorter, the energy consumption ratio of the curing process is reduced, and the degree of greenness of the process is high.

Description

technical field [0001] The invention belongs to the technical field of special anti-corrosion coatings, in particular to a high-temperature wear-resistant anti-corrosion coating and a preparation method and application thereof. Background technique [0002] In the production process of waste incineration power generation, the working environment of the four boiler tubes (water wall, superheater, reheater and economizer) is extremely harsh, the temperature of the internal water vapor is as high as 500°C, and the temperature of the external high-temperature flue gas is as high as 900°C , and the high temperature flue gas is mixed with a large number of solid particles and corrosive gases containing chlorine and sulfur. Due to the erosion and peeling of high-speed flowing pulverized coal or fly ash, high temperature oxidation and corrosion of corrosive gases, the average service life of boiler pipes is only 1-3 years. [0003] In the actual production process, in order to solv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D5/08C09D163/00C09D7/62C09D7/65C09D7/61B05D7/24
CPCC09D5/08C09D163/00C09D7/62C09D7/65C09D7/61C09D7/70C09D5/18B05D7/24C08L2201/08C08K2003/2241C08K2201/014C08L83/12C08K9/04C08K3/042C08K3/22C08K3/346C08K3/34C08K3/26C08K7/14C08K3/36C08K7/06C08K7/10Y02E20/12
Inventor 戴雷
Owner 深圳优易材料科技有限公司
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