A kind of graphene-based high temperature resistant anti-corrosion coating and preparation method thereof

A technology of anti-corrosion coatings and graphene, which is applied in the direction of anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of unexplained key role of graphene, inability to uniformly disperse graphene, fast electron transfer speed, etc., to achieve Easy industrial production, low production cost, simple operation

Inactive Publication Date: 2015-09-09
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the patent uses graphene as the main filler, the preparation method only uses stirring and mixing, which cannot make the graphene evenly dispersed, so that it cannot achieve its small size, fast electron transfer speed, good conductivity, high hardness, etc. advantages, and it does not account for the key role graphene plays in this coating

Method used

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  • A kind of graphene-based high temperature resistant anti-corrosion coating and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Each component is equipped with the following mass percentages: epoxy resin (commercially available 665 silicone epoxy resin) 20%, polyphenylene sulfide resin 20%, amino resin (commercially available 520 urea-formaldehyde resin) 20%, pigment (titanium white powder) 5%, graphene 10%, n-butanol 14%, defoamer (tributyl phosphate) 0.2%, poly 2-hydroxyacrylic acid sodium salt 6%, dibutyl phthalate 4%, bentonite 0.5 %, leveling agent (silicone oil) 0.3%.

[0032] The graphene-based high temperature resistant anti-corrosion coating is prepared through the following steps:

[0033] (1) Graphene, epoxy resin and polyphenylene sulfide resin are added in n-butanol, ultrasonically stirred for 150 minutes;

[0034] (2) Add amino resin, pigment, defoamer, polyhydroxy acid sodium salt, dibutyl phthalate, and leveling agent into the grinder according to the specified amount, and grind until the fineness is less than 30 microns;

[0035] (3) Mix the material obtained in step (1) and s...

Embodiment 2

[0037] The components are prepared according to the following mass percentages: epoxy resin (ES-06 silicone epoxy resin) 25%, polyphenylene sulfide resin 25%, amino resin (582 melamine formaldehyde resin) 15%, pigment (zinc oxide) 5% %, graphene 10%, n-butanol 10%, defoamer (GP type defoamer) 0.2%, polyhydroxy acid sodium salt 5.5%, dibutyl phthalate 3%, bentonite 0.8%, leveling Agent (polydimethylsiloxane) 0.5%.

[0038] The graphene-based high temperature resistant anti-corrosion coating is prepared through the following steps:

[0039] (1) Graphene, epoxy resin and polyphenylene sulfide resin are added in n-butanol, ultrasonically stirred for 150 minutes;

[0040] (2) Add amino resin, pigment, defoamer, polyhydroxy acid sodium salt, dibutyl phthalate, and leveling agent into the grinder according to the specified amount, and grind until the fineness is less than 30 microns;

[0041] (3) Mix the material obtained in step (1) and step (2) and stir for 90 minutes, add bentonit...

Embodiment 3

[0043] The components are prepared according to the following mass percentages: epoxy resin (ES-06 silicone epoxy resin) 40%, polyphenylene sulfide resin 10%, amino resin (576-1 melamine phenylguanamine resin) 10%, pigment (Red iron oxide) 8%, graphene 5%, n-butanol 20%, defoamer (GPE type defoamer) 0.3%, polyhydroxy acid sodium salt 3.5%, dibutyl phthalate 2%, Bentonite 0.8%, leveling agent (polyether polyester modified organosiloxane) 0.4%.

[0044] The graphene-based high temperature resistant anti-corrosion coating is prepared through the following steps:

[0045] (1) Graphene, epoxy resin and polyphenylene sulfide resin are added in n-butanol, ultrasonically stirred for 150 minutes;

[0046] (2) Add amino resin, pigment, defoamer, polyhydroxy acid sodium salt, dibutyl phthalate, and leveling agent into the grinder according to the specified amount, and grind until the fineness is less than 30 microns;

[0047] (3) Mix the material obtained in step (1) and step (2) and s...

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Abstract

The invention relates to a high temperature resistant anticorrosion coating based on graphene and a preparation method thereof. The high temperature anticorrosion coating comprises the following components by the mass percentage: 5-60% of epoxy resin, 3-30% of polyphenylene sulfide resin, 3-30% of amino resin, 1-10% of a pigment, 1-20% of graphene, 3-50% of n-butyl alcohol, 0.1-0.3% of a defoaming agent, 0.1-10% of polyhydroxy acid sodium salt, 0.1-5% of benzenedicarboxylic acid dibutyl ester, 0.5-1.0% of bentonite, and 0.2-0.5% of a leveling agent. Compared with the prior art, the prepared coating has the advantages of quite excellent waterproof and anticorrosion performance, high temperature resistance, weather resistance, alkali resistance, impact resistance, artificial aging resistance and the like, and the preparation method has the advantages of good controllability, simple operation, low production cost, and easy industrialized production.

Description

technical field [0001] The invention relates to a coating and a preparation method thereof, in particular to a graphene-based high temperature resistant anticorrosion coating and a preparation method thereof. Background technique [0002] High temperature resistant coating is an important coating, which is suitable for anticorrosion of chimney flue, high temperature steam pipe, heat exchanger, high temperature furnace, high temperature desulfurization equipment, petroleum and petrochemical cracking device, engine parts and exhaust pipe. In addition, some special high-temperature-resistant anti-corrosion coatings are widely used in aerospace, petroleum and petrochemical, metallurgy, electric power, and national defense fields. Since the industrial production of organic silicon in the 1940s, the high-temperature resistant coatings formulated with its products have been widely used in high-temperature motors and electrical insulation. For example, organosilicon-aluminum powder...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/00C09D181/02C09D161/24C09D161/28C09D5/08C09D7/12
Inventor 时鹏辉姚伟峰周笑绿郑红艾胡晨燕蒋路漫
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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