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Two-component waterborne graphene epoxy zinc-rich coating and preparation method thereof

A technology of zinc-rich alkene epoxy and a production method, which is applied in the field of coatings and achieves the effects of reducing drying procedures, reducing application costs, and having good isolation and shielding effects.

Inactive Publication Date: 2019-06-14
SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Water-based heavy-duty anti-corrosion coatings have not been well promoted and applied due to their own performance problems, and currently only have a certain market in the container field

Method used

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  • Two-component waterborne graphene epoxy zinc-rich coating and preparation method thereof
  • Two-component waterborne graphene epoxy zinc-rich coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A two-component water-based graphene heavy-duty anti-corrosion coating, the A component includes the following raw materials in parts by weight, 1.0 parts of expanded graphite, 40 parts of epoxy resin emulsion, 1 part of dispersant, 1 part of coupling agent, defoaming 0.5 parts of neutralizing agent AMP-95, 10 parts of talcum powder, 5 parts of precipitated barium sulfate, 41.3 parts of deionized water.

[0057] The preparation method of the coating A component is as follows:

[0058] (1) Put the resin emulsion, dispersant, coupling agent, defoamer, neutralizer, and deionized water of component A in a mixing container, and stir with an electric disperser at a speed of 1500 r / min. The stirring time was 20 min to obtain a resin dispersion.

[0059] (2) Then add the formulated amount of expanded graphite, continue to stir at a speed of 1500 r / min, and stir for 10 min to obtain a graphite resin slurry.

[0060] (3) The graphite slurry was sheared at a high speed of 5000 r...

Embodiment 2

[0069] A two-component water-based graphene heavy-duty anti-corrosion coating, the A component includes the following raw materials in parts by weight, 1.5 parts of mechanically exfoliated graphene, 60 parts of epoxy resin emulsion, 1.5 parts of dispersant, 1.5 parts of coupling agent, 0.75 parts of defoaming agent, 0.3 parts of neutralizing agent AMP-95, 15 parts of talcum powder, 7.5 parts of precipitated barium sulfate, and 11.95 parts of deionized water.

[0070] The preparation method of the coating A component is as follows:

[0071] (1) Put the resin emulsion, dispersant, coupling agent, defoamer, neutralizer, and deionized water of component A in a mixing container, and stir with an electric disperser at a speed of 1500 r / min. The stirring time was 20 min to obtain a resin dispersion.

[0072] (2) Then add the formulated amount of graphene, continue to stir, the rotation speed is 1500 r / min, and the stirring time is 10 min to obtain the graphene resin slurry.

[0073...

Embodiment 3

[0081] A two-component water-based graphene heavy-duty anti-corrosion coating, the A component includes the following raw materials in parts by weight, 0.75 parts of expanded graphite, 50 parts of epoxy resin emulsion, 1.25 parts of dispersant, 1.25 parts of coupling agent, defoaming 0.6 parts of neutralizer, 0.25 parts of neutralizing agent AMP-95, 12.5 parts of talcum powder, 6.25 parts of precipitated barium sulfate, and 27.15 parts of deionized water.

[0082] The preparation method of the coating A component is as follows:

[0083] (1) Put the resin emulsion, dispersant, coupling agent, defoamer, neutralizer, and deionized water of component A in a mixing container, and stir with an electric disperser at a speed of 1500 r / min. The stirring time was 20 min to obtain a resin dispersion.

[0084] (2) Then add the formulated amount of expanded graphite, continue to stir at a speed of 1500 r / min, and stir for 10 min to obtain a graphite resin slurry.

[0085] (3) The graphit...

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Abstract

The invention relates to the field of coatings, and discloses a double-component waterborne graphene epoxy zinc-rich coating. The coating comprises a component A capable of being cured into a film anda component B containing a curing agent, wherein the component A is prepared from the following raw materials in parts by weight: 40-50 parts of epoxy resin emulsion, 1-2 parts of expanded graphite,20-40 parts of deionized water, 1-2 parts of dispersing agent, 0.5-1 wt% of silane coupling agent, 0.2-0.5 part of defoaming agent, 10-20 parts of talcum powder, 5-10 parts of precipitated barium sulfate and 0.1-0.3 part of neutralizer; the component B comprises 10-20 parts of curing agent, 50-70 parts of zinc powder, 10-20 parts of ferrophosphorus powder, 1-4 parts of anti-settling agent and 5-10parts of film forming auxiliary agent; and the component B is prepared from the following raw materials in parts by weight: 10-20 parts of curing agent, 50-70 parts of zinc powder, 10-20 parts of ferrophosphorus powder, 1-4 parts of anti-settling agent and 5-10 parts of film forming auxiliary agent. The coating can meet the use requirement of a steel structure in an outdoor coastal severe environment.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a two-component water-based graphene epoxy zinc-rich coating and a preparation method thereof, in particular to a two-component water-based graphene ring containing graphene and zinc powder Oxygen-rich zinc coating and its preparation method. Background technique [0002] Graphene is the lightest, thinnest, highest strength, and best electrical and thermal conductivity nano-scale new material that has been discovered so far. Although the theoretical thickness is about 0.3 nanometers, it can achieve "zero penetration" and can almost isolate water and oxygen. , sodium ions, and graphene itself is hydrophobic and oil-repellent, and its sheet structure has a "labyrinth" effect, which can prevent water and corrosive ions from penetrating into metal substrates, and can greatly improve the water resistance of water-based coatings. Graphene is applied in the zinc-rich primer, and the conductivit...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/10C09D7/61C09D7/63
Inventor 周海洋丁显波王东卫刘克慈立杰
Owner SHENZHEN GUOCHUANG JIAWEI GRAPHENE TECH CO LTD
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