Graphene oxide nanosheet modified azine ring structure temperature-resistant corrosion-resistant inert coating and preparation method thereof

A technology of graphene nanosheets and stone oxide, applied in coatings, epoxy resin coatings, anti-corrosion coatings, etc., to achieve the effects of improving toughness, anti-corrosion penetration and anti-γ-ray radiation performance, and reducing temperature resistance

Pending Publication Date: 2021-08-20
广东腐蚀科学与技术创新研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a graphene oxide nanosheet modified oxazine ring structure heat-resistant and corrosion-resistant inert coating and its preparation method to solve the problem of effective protection in higher temperature corrosion and radiation environment existing in the prior art

Method used

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  • Graphene oxide nanosheet modified azine ring structure temperature-resistant corrosion-resistant inert coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] In this embodiment, the heat-resistant and corrosion-resistant inert coating of graphene oxide nanosheet modified oxazine ring structure is composed of two components, A and B, in parts by weight, and the specific formula is as follows:

[0031] 1. Component A:

[0032] Ethane-1,1-bis(4-phenylcyanate): 50.0 parts;

[0033] Bisphenol S diglycidyl ether: 10.0 parts;

[0034] Polyalkylaryl silicone resin: 18.0 parts;

[0035] Surface modified graphene oxide nanosheets: 2.0 parts;

[0036] Glass flakes: 10.0 parts;

[0037] Silicon carbide powder: 8.0 parts;

[0038] Fluorosilane coupling agent: 2.0 parts;

[0039] 1,4-epoxybutane: 5.0 parts;

[0040] Among them, the graphene oxide nanosheets are few-layer graphene oxide nanosheets with ≤3 layers, and the surface modification process of the graphene oxide nanosheets is as follows: use acetic acid to adjust the pH value of deionized water to 4.5 to form an acetic acid solution, and prepare a concentration of 3wt% hept...

Embodiment 2

[0048] The difference from Example 1 is:

[0049] In this embodiment, the heat-resistant and corrosion-resistant inert coating of graphene oxide nanosheet modified oxazine ring structure is composed of two components, A and B, in parts by weight, and the specific formula is as follows:

[0050] (1) Component A:

[0051] Ethane-1,1-bis(4-phenylcyanate): 41.0 parts;

[0052] Bisphenol S diglycidyl ether: 18.0 parts;

[0053] Polyalkylaryl silicone resin: 16.0 parts;

[0054] Surface modified graphene oxide nanosheets: 1.8 parts;

[0055] Glass flakes: 10.2 parts;

[0056] Silicon carbide powder: 8.0 parts;

[0057] Fluorosilane coupling agent: 1.0 parts;

[0058] 1,4-epoxybutane: 4.0 parts;

[0059] Among them, the graphene oxide nanosheets are multilayer graphene oxide nanosheets with 5 to 10 layers, and the surface modification process of the graphene oxide nanosheets is as follows: use acetic acid to adjust the pH value of deionized water to 5 to form an acetic acid so...

Embodiment 3

[0067] The difference from Example 1 is:

[0068] In this embodiment, the heat-resistant and corrosion-resistant inert coating of graphene oxide nanosheet modified oxazine ring structure is composed of two components, A and B, in parts by weight, and the specific formula is as follows:

[0069] (1) Component A:

[0070] Ethane-1,1-bis(4-phenylcyanate): 50.0 parts;

[0071] Bisphenol S diglycidyl ether: 23.5 parts;

[0072] Polyalkylaryl silicone resin: 8.5 parts;

[0073] Surface modified graphene oxide nanosheets: 2.3 parts;

[0074] Glass flakes: 11.0 parts;

[0075] Silicon carbide powder: 9.0 parts;

[0076] Fluorosilane coupling agent: 1.6 parts;

[0077] 1,4-epoxybutane: 4.1 parts;

[0078] Among them, the graphene oxide nanosheets are few-layer graphene oxide nanosheets with ≤3 layers, and the surface modification process of the graphene oxide nanosheets is as follows: use acetic acid to adjust the pH value of deionized water to 4 to form an acetic acid solution,...

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Abstract

The invention relates to a development technology of a protective material in a heavy corrosion environment in the fields of petrifaction, electric power, environmental protection and the like, in particular to a graphene oxide nanosheet modified azine ring structure temperature-resistant corrosion-resistant inert coating and a preparation method thereof, and solves the problems of poor acid resistance, poor heat resistance and the like in an existing heavy corrosion-resistant coating technology. The coating is composed of a component A and a component B, wherein the component A comprises surface modified graphene oxide nanosheets, ethane-1, 1-bis (4-phenyl cyanate), bisphenol S diglycidyl ether, polyalkyl aryl organic silicon resin, filler and the like, the component B is phenolic aldehyde amine, wherein after the two components are fully mixed, and gradient heating curing is performed under a vacuum condition to prepare the graphene oxide nanosheet modified organic silicon-epoxy-bis (4-phenyl cyanate) heat-resistant and corrosion-resistant composite coating. The graphene oxide modified heat-resistant and corrosion-resistant composite coating disclosed by the invention has the characteristics of strong corrosion resistance, heat resistance and the like, and can be applied to the fields of high-temperature and heavy-corrosion production equipment protection and the like in the industrial field.

Description

technical field [0001] The invention relates to the development technology of protective materials in heavy corrosion environments in the fields of petrochemical, electric power, environmental protection, etc., and specifically relates to a heat-resistant and corrosion-resistant inert coating with a graphene oxide nanosheet modified oxazine ring structure and a preparation method thereof. Background technique [0002] In recent years, the corrosion of high-temperature acid liquid / steam, high-temperature salt water, and high-temperature corrosive water in industries such as petroleum drilling, refining, chemical industry, nuclear power, thermal power, and environmental protection has become increasingly serious. cause great harm to the safe operation of the system. Conventional epoxy, silicone, phenolic coatings, etc. will be degraded and damaged in a short period of time in such a heavy corrosion environment, and gradually lose their adhesion to the metal, resulting in the f...

Claims

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Application Information

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IPC IPC(8): C09D179/04C09D163/00C09D183/04C09D5/08C09D7/61C09D7/62
CPCC09D179/04C09D5/08C09D7/61C09D7/62C09D5/18C08L2201/08C08L63/00C08L83/04C08K9/06C08K3/042C08K7/00C08K3/40C08K3/34C08K13/06
Inventor 王震宇韩恩厚常峻玮李江波
Owner 广东腐蚀科学与技术创新研究院
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