Anti-corrosion and heat-dissipation integrated coating of waterborne graphene/epoxy zinc-rich dispersion system and preparation method and application thereof

A water-based epoxy zinc-rich, water-based graphene technology, applied in anti-corrosion coatings, epoxy resin coatings, devices for coating liquids on surfaces, etc. Low, low corrosion resistance and other issues

Active Publication Date: 2020-08-14
湖南库泠斯特科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conductivity of water-based epoxy resin is low, and it has a large number of hydrophilic groups, so its anti-corrosion ability is low
However, the conventional water-based coatings currently available on the market cannot effectively solve the problem of anti-corrosion of metal materials.

Method used

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  • Anti-corrosion and heat-dissipation integrated coating of waterborne graphene/epoxy zinc-rich dispersion system and preparation method and application thereof
  • Anti-corrosion and heat-dissipation integrated coating of waterborne graphene/epoxy zinc-rich dispersion system and preparation method and application thereof
  • Anti-corrosion and heat-dissipation integrated coating of waterborne graphene/epoxy zinc-rich dispersion system and preparation method and application thereof

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preparation example Construction

[0053] The present invention also provides the preparation method of the anticorrosion and heat dissipation integrated coating of the water-based graphene / epoxy zinc-rich dispersion system described in the above technical solution, comprising the following steps:

[0054] After mixing hydrophilic graphene, hydrophilic kaolin, water and water-based epoxy zinc-rich resin, a doped resin is obtained;

[0055] Mix the doped resin, fumed silica, defoamer, leveling agent and two-component water-based epoxy zinc-rich curing agent to obtain the integrated anti-corrosion and heat dissipation of the water-based graphene / epoxy zinc-rich dispersion system coating.

[0056] The invention mixes hydrophilic graphene, hydrophilic kaolin, water and water-based epoxy zinc-rich resin to obtain doped resin.

[0057] In the present invention, the mixing method is preferably magnetic stirring. In the present invention, there is no special limitation on the rotational speed and time of the magnetic ...

Embodiment 1

[0071] Weigh 1g of graphene in a beaker, then weigh 1g of sodium lauryl sulfate, 0.5g of tetrabutylammonium bromide, 3g of polyvinyl alcohol and 45mL of distilled water for magnetic stirring to obtain hydrophilic graphene;

[0072] Weigh 2g of calcined kaolin (calcined under oxygen, the calcination temperature is 400°C, and the calcination time is 6h) in a beaker, then weigh 1g sodium lauryl sulfate, 0.5g tetrabutylammonium bromide, 3g polyethylene Alcohol and 45mL distilled water are magnetically stirred to obtain hydrophilic kaolin;

[0073] Weigh 15g of water-based epoxy zinc-rich resin, 1g of hydrophilic graphene, 1g of hydrophilic kaolin and 3ml of water in a beaker, stir evenly, weigh 0.1g of fumed silica, add it to the beaker, stir evenly, and then measure Take 2ml of tributyl phosphate, 1ml of leveling agent, two-component water-based epoxy zinc-rich curing agent, and stir for 2 hours with a DW-2 booster stepless constant speed mixer until the dispersion is uniform to ...

Embodiment 2

[0079] The difference between this example and Example 1 is that the calcined kaolin used is at a calcination temperature of 600° C. and a calcination time of 6 hours.

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Abstract

The invention provides an anti-corrosion and heat-dissipation integrated coating of a waterborne graphene / epoxy zinc-rich dispersion system and a preparation method and application thereof, and relates to the technical field of water-based coatings. The anti-corrosion and heat-dissipation integrated coating comprises the following components in parts by mass: 10 to 20 parts of waterborne epoxy zinc-rich resin, 0.5 to 1.5 parts of hydrophilic graphene, 0.5 to 1.5 parts of hydrophilic kaolin, 0.05 to 0.15 part of fumed silica, 7.2 to 12.5 parts of water, 1 to 3 parts of an antifoaming agent, 0.5to 1.5 parts of a leveling agent and 1 to 5 parts of a double-component waterborne epoxy zinc-rich curing agent. The anti-corrosion and heat-dissipation integrated coating provided by the invention has excellent anti-corrosion performance, the anti-corrosion problem of metal materials can be effectively solved, the raw materials of the anti-corrosion and heat-dissipation integrated coating provided by the invention are environment-friendly, and the prepared anti-corrosion and heat-dissipation integrated coating is low in VOC emission.

Description

technical field [0001] The invention relates to the technical field of water-based coatings, in particular to an anti-corrosion and heat-dissipating integrated coating of a water-based graphene / epoxy zinc-rich dispersion system and its preparation method and application. Background technique [0002] The corrosion of metal is mainly due to the chemical or electrochemical reaction between the metal and the medium in contact, so that the structure of the metal is damaged and the equipment is scrapped. Corrosion of metals has caused serious waste of resources and energy, so the problem of corrosion of metal materials has always been the focus of attention. [0003] Water-based coatings are widely used for rust prevention of metal products because of their environmental friendliness and low VOC volatilization. At present, anti-rust water-based coatings mainly include water-based polyurethane coatings, water-based polyacrylate coatings and water-based epoxy resins. Among them, w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D5/08C09D7/62C09D7/61B05D5/00B05D7/14B05D7/24
CPCC09D163/00C09D5/106C09D5/08C09D7/62C09D7/61B05D7/14B05D7/24B05D5/00C08K2003/0893C08K9/04C08K3/042C08K3/346C08K3/08C08K3/36C08K13/06
Inventor 谭正德李丰吴钧涛谢情丽赵剩勇
Owner 湖南库泠斯特科技有限公司
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