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Waterborne graphene anticorrosive paint

A water-based graphene and anti-corrosion coating technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve problems such as manpower loss, and achieve the effects of reducing VOC emissions, easy dispersion, and pollution reduction

Inactive Publication Date: 2019-03-15
HUNAN XIANGXIAN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Preventing metal corrosion is a very serious global problem. The usual anti-corrosion method is to coat the metal surface with an anti-corrosion coating to isolate the metal from contact with air, water and chemicals, but limited to the performance of anti-corrosion coatings, it can only reach Metals will not be corroded in a short period of time, and regular maintenance is required, resulting in loss of manpower and financial resources. Therefore, it is particularly important to make coatings with better corrosion resistance to extend the maintenance cycle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The invention provides a kind of water-based graphene anticorrosion paint comprising following raw materials in parts by weight:

[0036] Table 1: Reference and preferred formula of graphene anticorrosion slurry;

[0037] material code

material name

Weight range

Example 1-1

Example 1-2

Example 1-3

1

Intercalated expanded graphite

1.0-15.0

6

1.0

15.0

2

SN5040

0.1-2.0

1.2

2.0

0.1

3

BYK181

0.1-2.0

0.4

0.1

2.0

4

AMP-95

0.1-2.0

0.5

2.0

0.1

5

Magnesium Aluminum Silicate

0.1-5.0

2.0

0.1

5.0

6

Deionized water

80.0-98.0

85.9

98.0

80.0

7

Absolute ethanol

1.0-10.0

4.0

1.0

10.0

[0038] Preparation process of water-based graphene anti-corrosion slurry:

[0039] According to the preferred formula in Table 1, mix the material dispersing cylinders with material numbers 1, 2, 3, 6, and 7 slowly and ev...

Embodiment 2-1

[0041] A kind of waterborne graphene anticorrosion coating, used raw material formula is as follows table 2.

[0042] Table 2

[0043]

[0044]

[0045] Water-based graphene anti-corrosion coating preparation process A component:

[0046] S1. Add the materials numbered 1, 2, 3, 5, and 6 in the A component in Table 2 to the dispersion tank respectively, and disperse at high speed for 60 minutes;

[0047] S2. Add the materials numbered 4 and 7 of the A component materials in Table 2 to the dispersion tank respectively, and disperse at a medium speed for 30 minutes;

[0048] S3. Detect, filter and package to obtain component A of the water-based graphene anti-corrosion coating.

[0049] Water-based graphene anti-corrosion coating preparation process B component

[0050] S1. Add the materials of component B in Table 2, numbered 1, 2, 7, and 8, into the dispersion tank respectively, and stir at a low speed for 30 minutes;

[0051] S2. Slowly add materials numbered 4, 5, a...

Embodiment 2-2

[0057] A kind of water-based graphene anticorrosion coating, used raw material formula such as table 3.

[0058] table 3

[0059]

[0060] The coating preparation process is the same as that in Example 1. According to the ratio of component A: component B = 3: 1, component A and component B are mixed and dispersed evenly, and then the coating is made into panels for testing.

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Abstract

The invention discloses a waterborne graphene anticorrosive paint. A waterborne epoxy resin and a waterborne epoxy curing agent are used as adhesives, the emission of VOC (volatile organic compounds)of the paint is greatly reduced, and the waterborne graphene anticorrosive paint is environmentally friendly. An adopted waterborne graphene anticorrosive slurry has the advantages of easiness in dispersion, high stability, and even distribution of sheet diameter, meanwhile, water is used as a dispersing medium, and the process is simple and reliable, is low in cost, and is suitable for large-scale industrial production; after the graphene is added into the anticorrosive paint, an electron is rapidly transferred to a zinc powder through graphene when a corrosive medium enters a coating, the graphene and the zinc powder react to form a dense zinc oxide protection layer, and the contact between a substrate and the corrosive medium is further isolated. The graphene is of a sheet structure, particularly a quite thin sheet structure, and the anticorrosive paint doped with the graphene has a quite excellent physical isolating effect; by adding the graphene into the anticorrosive paint, the environment pollution caused by the zinc powder is reduced, and the cost of the paint is reduced while the physical mechanical property of the coating is strengthened.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a water-based graphene anti-corrosion coating. Background technique [0002] Preventing metal corrosion is a very serious global problem. The usual anti-corrosion method is to coat the metal surface with an anti-corrosion coating to isolate the metal from contact with air, water and chemicals, but limited to the performance of anti-corrosion coatings, it can only reach Metals will not be corroded in a short period of time, and regular maintenance is required, resulting in loss of manpower and financial resources. Therefore, it is particularly important to make coatings with better corrosion resistance to extend the maintenance cycle. With the continuous advancement of science and technology and the continuous enhancement of people's awareness of environmental protection, the environmental protection requirements for coatings are getting higher and higher. The syst...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10
CPCC09D163/00C08L2205/025C09D5/106C08L63/00C08K3/042C08K3/08
Inventor 文钟强刘思刘建忠
Owner HUNAN XIANGXIAN TECH
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