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Preparation method of high-temperature-resistant graphene self-lubricating water-based anticorrosive paint

A technology for anti-corrosion coatings and high temperature resistance, applied in anti-corrosion coatings, fire-resistant coatings, coatings, etc., can solve problems such as insufficient shielding ability and uneven distribution of graphene

Inactive Publication Date: 2021-05-04
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the problems of uneven graphene distribution and insufficient shielding ability of existing water-based anti-corrosion coatings, the present invention

Method used

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  • Preparation method of high-temperature-resistant graphene self-lubricating water-based anticorrosive paint

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Experimental program
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specific Embodiment approach 1

[0012] Specific embodiment one: the preparation method of a kind of high temperature resistant graphene self-lubricating water-based anti-corrosion coating of this embodiment is carried out according to the following steps:

[0013] 1. Measure the graphene powder, the number of graphene layers is 1-20 layers;

[0014] 2. Add distilled water into the graphene container, and configure the graphene solution. The mass ratio of graphene to water is 1:50-20000;

[0015] 3. Put the solution obtained in step 2 into an ultrasonic oscillator to oscillate evenly, the oscillating time is 1-360min, and the oscillating temperature is 1-100°C;

[0016] 4. Measure the polyimide emulsion, mix it with the graphene solution according to the mass ratio of 1-40000:1 and stir evenly. The concentration of the PAI emulsion is 0.1-1000g / L.

specific Embodiment approach 2

[0017] Embodiment 2: This embodiment differs from Embodiment 1 in that the number of graphene layers in step 1 is 1-10 layers. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0018] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the number of graphene layers in step 1 is 1-5 layers. Others are the same as those in the first or second embodiment.

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Abstract

The invention discloses a preparation method of a high-temperature-resistant graphene self-lubricating water-based anticorrosive paint, and relates to a method for preparing a graphene water-based anticorrosive paint by a physical stirring method. The invention aims to solve the problems of non-uniform graphene distribution, insufficient shielding capability and the like of the existing water-based anticorrosive paint. The method comprises the following steps: 1, measuring graphene powder; 2, putting the graphene powder into water to prepare a graphene solution; 3, putting the solution prepared in the step 2 into an ultrasonic oscillator for oscillation; and 4, adding PAI into the solution prepared in the step 3, and uniformly mixing and stirring. The prepared graphene water-based anticorrosive paint is low in cost, simple to operate and uniform in size distribution.

Description

technical field [0001] The invention relates to a preparation method of a high-temperature-resistant graphene self-lubricating water-based anticorrosion coating. Background technique [0002] Graphene is a honeycomb planar film formed by sp2 hybridization of carbon atoms. It is a two-dimensional material with only one atomic layer thickness, also known as monoatomic layer graphite. As a single-layer carbon nanomaterial, graphene can be prepared into a coating or used as a filler in anti-corrosion coatings. Its good electrical conductivity and sheet-like barrier properties can shield oxygen and corrosive media, reducing corrosion resistance. Penetration properties of the coating, thereby improving the anti-corrosion performance of the coating. [0003] Water-based coatings use water as the dispersion medium. Because of their odorless products, low VOC content, and environmental protection, they have gradually become the main development direction and research focus of coatin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D179/08C09D5/08C09D7/61
CPCC09D5/08C09D5/18C09D179/08C09D7/61C08K3/042
Inventor 李晶李科贤李文权
Owner HARBIN UNIV OF SCI & TECH