High-temperature-wear-resistant anticorrosive paint as well as preparation method and application thereof

An anti-corrosion coating, high temperature resistant technology, applied in anti-corrosion coatings, fire retardant coatings, epoxy resin coatings, etc., to achieve excellent impact resistance, high density and flexibility, to avoid the effect of agglomeration

Active Publication Date: 2021-08-13
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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  • High-temperature-wear-resistant anticorrosive paint as well as preparation method and application thereof
  • High-temperature-wear-resistant anticorrosive paint as well as preparation method and application thereof
  • High-temperature-wear-resistant anticorrosive paint as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

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

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

[0042]

[0043] Among them, n is 40, R 1 Be selected from the structure shown in formula (a):

[0044]

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

Embodiment 2

[0052] A high-temperature wear-resistant anticorrosion 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 agent is 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 formed by mixing the furan-modified epoxy resins of formula (I) and formula (II) according to the weight ratio of 100:0.5;

[0055]

[0056] Among them, n is 60, R 1 Selected from structures shown in formula (b):

[0057]

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

Embodiment 3

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

[0067] 100 parts of furan-modified epoxy resin, 10 parts of epoxy-based polyether-polysiloxane, 30 parts of reactive diluent, 6 parts of filler, 0.6 part of amino-functionalized graphene, 7 parts of auxiliary agent, 5 parts of curing agent, 50 parts of solvent; the auxiliary agent is 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 the weight ratio of 100:1.5;

[0069]

[0070] Among them, n is 55, R 1 Be selected from the structure shown in formula (a):

[0071]

[0072] The epoxy-based polyether-polysiloxane is obtained by the following preparation method, the hydrogen-containing silicone oil and the epoxy-terminated allyl polyether ar...

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Abstract

The invention relates to a high-temperature-wear-resistant anticorrosive paint and a preparation method and an application thereof, a combination of furan modified epoxy resin with a specific structure is selected as a film forming substance, the high temperature resistance, corrosion resistance and other properties of the epoxy resin and furan resin are utilized, and functionalized graphene is selected as a heat-conducting and anticorrosive component, epoxy polyether-polysiloxane is used as a dispersion functional component, good dispersion of graphene, the filler and other components is realized, the coating with good and compact appearance is prepared, the coating has excellent high temperature resistance, wear resistance, corrosion resistance and the like, can meet the high-temperature corrosion resistance requirements of the surfaces of the four tubes of the boiler, and meanwhile, the method has the advantages of simple process, simple operation, mild curing conditions, short time required for complete curing, low energy consumption ratio of the curing process, and high greenization degree of the process.

Description

technical field [0001] The invention belongs to the technical field of special anti-corrosion coatings, and in particular relates to a high-temperature wear-resistant anti-corrosion coating and its preparation method and application. Background technique [0002] In the production process of waste incineration power generation, the working environment of the four tubes of the boiler (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 amount of solid particles and corrosive gases containing chlorine and sulfur. Due to the scouring and stripping of high-speed flowing coal powder or fly ash, high-temperature oxidation and corrosion of corrosive gases, the average service life of boiler pipes is only 1-3 years, and the phenomenon of pipe bursting began to o...

Claims

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Application Information

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Patent Type & Authority Applications(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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