Polysilicon ceramic high-temperature-resistant and corrosion-resistant coating and preparation method thereof

An anti-corrosion coating and high-temperature-resistant technology, which is applied in anti-corrosion coatings, fire-proof coatings, epoxy resin coatings, etc., can solve the problems of poor temperature resistance of anti-corrosion coatings, achieve the effects of preventing intrusion, simple process, and avoiding the generation of oxidized lattices

Inactive Publication Date: 2018-10-19
CHINA ACADEMY OF ENG PHYSICS FUNCTION MATERIAL RES INST
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] At present, the temperature resistance of anti-corrosion coatings is poor, generally not exceeding 500 degrees

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] The preparation method of polysilicon ceramic high temperature resistant anticorrosion coating provided by the invention comprises the following steps:

[0032] Step S110: stirring the modified graphene and polysilane-modified epoxy resin to obtain a resin mixture, wherein the mass fraction ratio of the modified graphene to polysilane-modified epoxy resin is 0.5%-5% ;

[0033] Specifically, the resin mixture is obtained after stirring the modified graphene and the polysilane-modified epoxy resin, wherein the mass fraction ratio of the monolayer boron nitride to the polysilane-modified epoxy resin is 0.5%- In the step of 5%, the stirring speed is 1000-1500rpm, and the stirring time is 1-2h.

[0034] In some preferred embodiments, the modified graphene is prepared by the following method:

[0035] Step S111: mixing graphene oxide, ethylenediamine, and PEG to obtain a dispersed PEG-grafted graphene oxide amination product;

[0036] In some preferred embodiments, wherein...

Embodiment 1

[0049]Add 1g of modified graphene to 50g of polysilane-modified epoxy resin, stir at 1500rpm for 1h to disperse, then add 50g of sheet-layer zirconia, 50g of sheet-layer zinc oxide, and stir for 1h at 1000rpm; obtain polysilicon ceramics resistant to high temperature and anticorrosion Coating component A: Mix component A and diethylenetriamine according to the mass ratio of 5:1 to obtain the polysilicon ceramic high temperature resistant anticorrosion coating.

Embodiment 2

[0051] Add 2g of modified graphene to 100g of polysilane-modified epoxy resin, stir at 1000rpm for 2h to disperse, then add 50g of sheet-layer zirconia, 100g of sheet-layer of zinc oxide, and stir for 2h at 1500rpm; obtain polysilicon ceramics with high temperature resistance and anticorrosion Coating component A; component A and diethylenetriamine are mixed according to the mass ratio of 10:1 to obtain the polysilicon ceramic high temperature resistant anti-corrosion coating.

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Abstract

The invention provides a polysilicon ceramic high-temperature-resistant and corrosion-resistant coating and a preparation method thereof. The preparation method comprises the following steps: stirringmodified graphene with a polysilane modified epoxy resin to obtain a resin mixture; stirring the resin mixture, zirconium oxide and zinc oxide to obtain a component A; further mixing the component Awith a curing agent, thereby obtaining the polysilicon ceramic high-temperature-resistant and corrosion-resistant coating. According to the polysilicon ceramic high-temperature-resistant and corrosion-resistant coating prepared with the method, solutions and oxide packing crystal lattices in the coating heated at a high temperature are crosslinked, invasion of an oxidation medium can be effectively prevented by a stable Tg phase interface at the high temperature, and thus crystal lattice oxidation can be avoided; meanwhile, the coating comprises a great amount of corrosion-resistant factors and OH active groups, a polymer corrosion-resistant coating with a three-dimensional structure can be generated, and the coating has dual functions of electrochemical protection and physical shielding and is particularly applicable to long-acting high-temperature protection of substrates.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a polysilicon ceramic high-temperature anti-corrosion coating and a preparation method thereof. Background technique [0002] Anti-corrosion coatings are widely used in modern industry, transportation, energy, marine engineering and other departments. With the rapid development of my country's petroleum industry, railway, highway bridge, metallurgical industry, electric power and energy industry, machinery and textile industry, industrial product field, automobile, ship and container, etc., there is an urgent need for continuous innovation in the field of anti-corrosion coatings . [0003] There are two types of corrosion of the base material at high temperature, one is high temperature damp heat corrosion, that is, the liquid and moisture of the high temperature electrolyte corrode the matrix, the other is the oxidation element oxidation matrix at high temperatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/08C09D7/61C09D7/62
CPCC09D7/62C09D7/70C09D163/00C09D5/08C09D5/18C09D7/61C08K2003/2296C08K2003/2244
Inventor 刘键
Owner CHINA ACADEMY OF ENG PHYSICS FUNCTION MATERIAL RES INST
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