Nano titanium-doped modified graphene high-performance anticorrosive coating and preparation method thereof

An anti-corrosion coating, graphene technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of difficult to achieve layer-by-layer protection effect, compactness and integrity effects, and difficult to uniformly disperse anti-corrosion coatings. , to achieve the effects of excellent chemical stability, strong film formation, and improved anti-oxidative corrosion performance

Inactive Publication Date: 2021-02-19
山东金芝麻环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the hydrophobicity of the original prepared graphene, it is easy to agglomerate, and it is difficult to disperse evenly during the preparation of anti-corrosion coatings, and its concentration is not easy to accurately control, so it is difficult to achieve the protective effect of overl

Method used

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  • Nano titanium-doped modified graphene high-performance anticorrosive coating and preparation method thereof
  • Nano titanium-doped modified graphene high-performance anticorrosive coating and preparation method thereof

Examples

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Example Embodiment

[0033] In an embodiment of the present invention, the preparation method of the modified graphene comprises the following steps:

[0034] 1) Mix the graphene raw material, cosolvent and coupling agent, and stir through an ultrasonic reactor to obtain a graphene suspension;

[0035] 2) Mix the graphene suspension with water, and heat at 100-120 °C for 2 hours to obtain the modified graphene crude product;

[0036] 3) The modified graphene crude product is sequentially subjected to solid-liquid separation, washing and drying to obtain modified graphene.

[0037] An embodiment of the present invention also provides a method for preparing the nano-titanium-doped modified graphene high-performance anti-corrosion coating, comprising the following steps:

[0038] 1) Mix the nano titanium dioxide and epoxy resin, and use a high-speed disperser to pre-disperse them to obtain a dispersion;

[0039] 2) The dispersion is fully ground to obtain the ground material;

[0040] 3) Mix the g...

Example Embodiment

[0045] Example 1

[0046] Mix 25 parts of graphene raw materials, 3 parts of sodium benzoate and 3 parts of titanate, and stir through an ultrasonic reactor to obtain a graphene suspension;

[0047] Mix the prepared graphene suspension with 40 parts of water, and heat at 120°C for 2 hours to obtain the modified graphene crude product;

[0048] The obtained modified graphene crude product is sequentially subjected to solid-liquid separation, washing and drying to obtain modified graphene;

[0049] Mix 35 parts of nano titanium dioxide and 250 parts of epoxy resin, and use a high-speed disperser to pre-disperse them to obtain a dispersion;

[0050] The obtained dispersion is fully ground to obtain a ground;

[0051] Mix the prepared ground product, modified graphene and 2 parts of modified aromatic amine, and stir with a mixer for 15 minutes to prepare a semi-finished anti-corrosion coating;

[0052] The semi-finished anti-corrosion paint is filtered by a bag filter to obtain...

Example Embodiment

[0053] Example 2

[0054] Mix 30 parts of graphene raw materials, 3 parts of sodium benzoate and 3 parts of titanate, and stir through an ultrasonic reactor to obtain a graphene suspension;

[0055] Mix the prepared graphene suspension with 40 parts of water, and heat at 120°C for 2 hours to obtain the modified graphene crude product;

[0056] The obtained modified graphene crude product is sequentially subjected to solid-liquid separation, washing and drying to obtain modified graphene;

[0057] Mix 35 parts of nano titanium dioxide and 250 parts of epoxy resin, and use a high-speed disperser to pre-disperse them to prepare a dispersion;

[0058] The obtained dispersion is fully ground to obtain a ground product;

[0059] Mix the prepared ground product, modified graphene and 2 parts of modified aromatic amine, and stir with a mixer for 15 minutes to prepare a semi-finished anti-corrosion coating;

[0060] The semi-finished anti-corrosion paint is filtered by a bag filter ...

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Abstract

The invention is applicable to the technical field of anticorrosive coatings, and provides a nano titanium-doped modified graphene high-performance anticorrosive coating which comprises the followingraw materials in parts by weight: 35-50 parts of nano titanium dioxide, 25-35 parts of modified graphene, 200-300 parts of epoxy resin, 1-5 parts of a cosolvent, 1-5 parts of a coupling agent, 2-5 parts of a curing agent and 30-50 parts of water. The invention also provides a preparation method of the nano titanium-doped modified graphene high-performance anticorrosive coating, graphene is modified, excellent chemical stability, strong adhesive force and film-forming property of graphene are considered, and meanwhile, the hydrophobicity of graphene is reduced, so that graphene is uniformly dispersed in the anticorrosive coating, and a protection effect of layer-by-layer overlapping is realized; the nano titanium dioxide is doped with the curing agent to form a coating layer firmly bonded with the substrate, thereby enhancing the compactness and integrity of the anticorrosive coating and greatly enhancing the oxidation corrosion resistance of the anticorrosive coating.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion coatings, in particular to a nano-titanium-doped modified graphene high-performance anti-corrosion coating and a preparation method thereof. Background technique [0002] Anti-corrosion coatings, generally divided into conventional anti-corrosion coatings and heavy-duty anti-corrosion coatings, are an indispensable coating in paint coatings. Conventional anti-corrosion coatings play an anti-corrosion effect on metals under normal conditions and protect the service life of non-ferrous metals; A type of anti-corrosion coating that achieves a longer protection period than conventional anti-corrosion coatings. Heavy-duty anti-corrosion coatings are widely used in the chemical atmosphere and marine environment. Compared with conventional anti-corrosion coatings, the application in a more corrosive environment puts forward high-standard anti-corrosion requirements for heavy-duty anti-corrosion c...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/08C09D7/62C09D7/61C08G59/50
CPCC08G59/5033C08K2003/2241C08K2201/011C09D5/08C09D163/00C09D7/61C09D7/62C08K13/06C08K9/04C08K3/042C08K3/22
Inventor 魏玉向
Owner 山东金芝麻环保工程有限公司
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