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A kind of high temperature resistant anticorrosion coating based on graphene and vermiculite and preparation method thereof

A technology of anti-corrosion coatings and graphene, which is applied in anti-corrosion coatings, fire-proof coatings, anti-fouling/underwater coatings, etc. It can solve the problems of high pressure resistance and adhesion, unstable coating performance, and easy cracking of coating films, etc. Problems, to achieve the effect of simplifying construction difficulty, good temperature adaptation range, and improving adhesion

Active Publication Date: 2018-10-23
GUANGXI XUTENG INDUSTRIAL GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The Chinese invention patent with application number 201611162668.1 discloses a graphene-modified inorganic coating and its preparation method, which improves the wear resistance and electrical conductivity of the coating, but needs to be improved in terms of high pressure resistance and adhesion
The Chinese invention patent with application number 201310158609.7 discloses a mica and graphene co-modified inorganic coating and its application method, which improves the adhesion and high temperature resistance of the inorganic coating and can basically meet the needs of modern production, but only involves the addition of low content of mica and graphene, when the content of these two is increased, the performance of the coating is unstable, and the coating film is still brittle and easy to crack, and the defects of poor adhesion

Method used

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  • A kind of high temperature resistant anticorrosion coating based on graphene and vermiculite and preparation method thereof
  • A kind of high temperature resistant anticorrosion coating based on graphene and vermiculite and preparation method thereof
  • A kind of high temperature resistant anticorrosion coating based on graphene and vermiculite and preparation method thereof

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Effect test

Embodiment 1

[0034] A kind of high temperature resistant anticorrosion coating based on graphene and vermiculite, comprises following composition according to mass percentage:

[0035] 5% bentonite, 5% vermiculite, 7% kaolin, 10% graphene, 6% corundum powder, 10% magnesium salt whisker, 15% titanium dioxide, 5% silicon acrylic emulsion, 37% inorganic binder.

[0036] It must mix vermiculite, graphene, titanium dioxide, and magnesium salt whiskers evenly, and then add coordination.

[0037] The inorganic binder includes the following components in terms of mass percentage: 10% sodium phosphate, 70% sodium silicate, 5% potassium silicate and 15% hydrophobically modified silica sol.

[0038]The hydrophobically modified silica sol is jointly modified by methyltrimethoxysilane and methylethoxysilicone oil. The amount of methyltrimethoxysilane and methylethoxy silicone oil is 1:5. The graphene includes single-layer graphene and multi-layer graphene, and the content of the multi-layer graphene ...

Embodiment 2

[0047] A kind of high temperature resistant anticorrosion coating based on graphene and vermiculite, comprises following composition according to mass percentage:

[0048] 6% bentonite, 10% vermiculite, 5% kaolin, 7% graphene, 4% corundum powder, 8% magnesium salt whisker, 17% titanium dioxide, 4% silicon acrylic emulsion, 39% inorganic binder.

[0049] It must mix vermiculite, graphene, titanium dioxide, and magnesium salt whiskers evenly, and then add coordination.

[0050] The inorganic binder includes the following components in terms of mass percentage: 10% sodium phosphate, 60% sodium silicate, 10% potassium silicate and 20% hydrophobically modified silica sol.

[0051] The hydrophobically modified silica sol is jointly modified by methyltrimethoxysilane and methylethoxysilicone oil. The amount of methyltrimethoxysilane and methylethoxy silicone oil is 1:4. The graphene includes single-layer graphene and multi-layer graphene, and the content of the multi-layer graphene...

Embodiment 3

[0054] A kind of high temperature resistant anticorrosion coating based on graphene and vermiculite, comprises following composition according to mass percentage:

[0055] 3% bentonite, 7% vermiculite, 3% kaolin, 13% graphene, 5% corundum powder, 7% magnesium salt whisker, 16% titanium dioxide, 6% silicon acrylic emulsion, 40% inorganic binder.

[0056] It must mix vermiculite, graphene, titanium dioxide, and magnesium salt whiskers evenly, and then add coordination.

[0057] The inorganic binder includes the following components in terms of mass percentage: 5% sodium phosphate, 70% sodium silicate, 10% potassium silicate and 15% hydrophobically modified silica sol.

[0058] The hydrophobically modified silica sol is jointly modified by methyltrimethoxysilane and methylethoxysilicone oil. The amount of methyltrimethoxysilane and methylethoxy silicone oil is 1:4. The graphene includes single-layer graphene and multi-layer graphene, and the content of the multi-layer graphene ...

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Abstract

The invention provides a graphene and vermiculite-based high-temperature-resistant anticorrosive paint and a preparation method. The graphene and vermiculite-based high-temperature-resistant anticorrosive paint comprises following components in percentage by mass: 0.05-10% of bentonite, 5-20% of vermiculite, 1-10% of kaolin, 1-20% of graphene, 3-10% of fused alumina powder, 5-15% of magnesium hydrate whiskers, 10-30% of titanium dioxide, 30-40% of an inorganic binder and 3-6% of silicone acrylic emulsion; and the inorganic binder comprises following components in percentage by mass: 5-20% of sodium phosphate, 60-80% of sodium silicate, 5-20% of potassium silicate and 10-30% of hydrophobic modified silica sol. The paint is featured with relatively high adhesion and needs no blasting treatment or corroding and roughening treatment on a metal surface, thereby greatly simplifying the difficulty of construction. Meanwhile, the paint would not be trapped in blistering, crazing and dropping at high temperature and plays roles of preventing water, fire, corrosion and rust, keeping warm, resisting aging, insulating and so on.

Description

technical field [0001] The invention relates to the production field of high-temperature-resistant special coatings, in particular to a high-temperature-resistant anti-corrosion coating based on graphene and vermiculite and a preparation method thereof. Background technique [0002] At this stage, with the continuous development of my country's modern industry, especially metal structure construction, petrochemical, energy, metallurgy, road and bridge, railway, aerospace and military shipbuilding and other industries, there are more and more occasions where high-temperature equipment and supporting facilities are used, but metal materials In a high temperature environment, it is easy to oxidize and react with oxygen in the air, resulting in corrosion, so that the metal material gradually loses its strength and leads to structural defects, which has become a hidden danger of various accidents. [0003] Commercially available high-temperature resistant anti-corrosion coatings a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D1/04C09D1/00C09D5/08C09D5/16C09D7/61C09D7/65
CPCC09D1/00C09D1/04C09D5/08C09D5/1637C09D5/1687C09D5/18
Inventor 黄聿新黄昭烨
Owner GUANGXI XUTENG INDUSTRIAL GROUP CO LTD
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