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Graphene oxide-carbon quantum dot complex modified anticorrosive coating and preparation method thereof

A technology of carbon quantum dots and anti-corrosion coatings, which is applied in the direction of anti-corrosion coatings, polyester coatings, coatings, etc., can solve the problems of development limitations, the mechanical strength and performance of graphene composite anti-corrosion coatings to be improved, and achieve strong environmental protection and improved Effects of uniformity and stability

Pending Publication Date: 2019-07-05
JIANGSU CHAMPION TECHNOLOGY GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the continuous improvement of people's awareness of environmental protection, countries around the world have put forward more and more requirements for the development of anti-corrosion coatings. many restrictions
Due to the characteristics of low pollution, easy purification, and no stimulation, water-based coatings have become the direction of vigorous development in the coatings industry. The mechanical strength and performance of graphene composite anti-corrosion coatings still need to be improved

Method used

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  • Graphene oxide-carbon quantum dot complex modified anticorrosive coating and preparation method thereof

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Embodiment 1

[0027] Graphene oxide-carbon quantum dot composite modified anti-corrosion coating, including the following raw materials in parts by mass: 2 parts of graphene oxide-carbon quantum dot nanocomposite, 25 parts of water-based alkyd resin, 5 parts of titanium dioxide, 6 parts of barium sulfate 1.5 parts of ethylene glycol dispersant, 0.2 parts of silicone defoamer, 0.1 part of sodium polyacrylate, 5 parts of additives, 30 parts of aliphatic polyamine curing agent, and 25 parts of deionized water. The additives are anti-settling agent, leveling agent, wetting agent, adhesion promoter and drier.

[0028] The preparation method of graphene oxide-carbon quantum dot composite modified anticorrosion coating comprises the following steps:

[0029] S1. Weigh 5 parts by mass of zinc citrate and 5 parts by mass of urea and dissolve them in water, then add 5 parts by mass of graphene oxide aqueous solution, conduct a hydrothermal reaction at 220°C for 5 hours, centrifuge to take the superna...

Embodiment 2

[0034] Graphene oxide-carbon quantum dot composite modified anti-corrosion coating, including the following raw materials in parts by mass: 5 parts of graphene oxide-carbon quantum dot nanocomposite, 20 parts of water-based alkyd resin, 10 parts of titanium dioxide, 20 parts of barium sulfate 1 part, 1 part of ethylene glycol dispersant, 0.5 part of silicone defoamer, 0.5 part of sodium polyacrylate, 3-10 parts of additives, 5 parts of aliphatic polyamine curing agent, 33 parts of deionized water. The additives are anti-settling agent, leveling agent, wetting agent, adhesion promoter and drier.

[0035] The preparation method of graphene oxide-carbon quantum dot composite modified anticorrosion coating comprises the following steps:

[0036] S1. Weigh 1 part by mass of zinc citrate and 1 part by mass of urea and dissolve them in water, then add 1 part by mass of graphene oxide aqueous solution, react hydrothermally at 160°C for 12 hours, centrifuge to take the supernatant, and...

Embodiment 3

[0041] Graphene oxide-carbon quantum dot composite modified anti-corrosion coating, including the following raw materials in parts by mass: 15 parts of graphene oxide-carbon quantum dot nanocomposite, 20 parts of water-based alkyd resin, 10 parts of titanium dioxide, 10 parts of barium sulfate 1.5 parts of ethylene glycol dispersant, 0.5 parts of silicone defoamer, 0.5 parts of sodium polyacrylate, 10 parts of additives, 5 parts of aliphatic polyamine curing agent, and 28 parts of deionized water. The additives are anti-settling agent, leveling agent, wetting agent, adhesion promoter and drier.

[0042] The preparation method of graphene oxide-carbon quantum dot composite modified anticorrosion coating comprises the following steps:

[0043]S1. Weigh 3 parts by mass of zinc citrate and 3 parts by mass of urea and dissolve them in water, then add 3 parts by mass of graphene oxide aqueous solution, perform hydrothermal reaction at 200°C for 8 hours, centrifuge to take the supern...

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Abstract

The invention provides a graphene oxide-carbon quantum dot complex modified anticorrosive coating and a preparation method thereof, and belongs to the technical field of coatings. The coating comprises the following raw materials: a graphene oxide-carbon quantum dot nano complex, water-based alkyd resin, titanium dioxide, barium sulfate, a dispersant, a defoaming agent, a thickening agent, an auxiliary agent and a curing agent; and the preparation method comprises the steps of preparing the graphene oxide-carbon quantum dot nano complex, preparing graphene oxide-carbon quantum dot slurry, preparing a pre-prepared coating, and adding the curing agent and performing mixing to obtain the anticorrosive coating. The anticorrosive coating provided by the invention has good corrosion resistance,high mechanical strength and strong environmental protection; and the preparation method has a simple process and is easy to operate.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a graphene oxide-carbon quantum dot composite modified anti-corrosion coating and a preparation method thereof. Background technique [0002] As a structural material with excellent performance, metal materials occupy an important position in modern industry. The ubiquitous metal corrosion has caused huge losses to the national economy, which urgently requires researchers to develop effective protection methods to alleviate metal corrosion. With its unique structural properties, graphene has great potential in the application of metal materials in the field of anticorrosion. In recent years, research on graphene-based anti-corrosion applications has mainly focused on pure graphene anti-corrosion coatings and graphene composite anti-corrosion coatings. Pure graphene anti-corrosion coatings have disadvantages such as high requirements on graphene quality, short oxida...

Claims

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Application Information

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IPC IPC(8): C09D167/08C09D5/08C09D7/61
CPCC08K2003/2241C08K2003/3045C08K2201/011C08L2205/03C08L2205/035C09D5/08C09D7/61C09D7/70C09D167/08C08L101/00C08L33/00C08K3/042C08K3/04C08K3/22C08K3/30C08K3/00C08K7/00C08K13/04
Inventor 武观谢海胡明
Owner JIANGSU CHAMPION TECHNOLOGY GROUP CO LTD
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