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Composite anti-corrosive coating and preparation method thereof

A technology of anti-corrosion coatings and raw materials, applied in anti-corrosion coatings, coatings, etc., can solve problems such as weak weather resistance and poor anti-ultraviolet exposure ability

Inactive Publication Date: 2021-09-24
HAINAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic anti-corrosion coatings have the characteristics of good film formation and good anti-corrosion effect, but the disadvantages are poor anti-ultraviolet exposure ability and weak weather resistance

Method used

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  • Composite anti-corrosive coating and preparation method thereof
  • Composite anti-corrosive coating and preparation method thereof
  • Composite anti-corrosive coating and preparation method thereof

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preparation example Construction

[0041] The present invention also provides a preparation method of the composite anticorrosion coating described in the above technical solution, comprising:

[0042] Mix magnesium oxide, magnesium sulfate, water, modifier, anti-crack agent, auxiliary agent and functional filler to obtain composite anticorrosion coating.

[0043] Wherein, the types and amounts of the magnesium oxide, magnesium sulfate, water, modifiers, anti-cracking agents, auxiliary agents and functional fillers are consistent with those described in the above technical solution, and will not be repeated here. The mixing method is not particularly limited, as long as each component can be mixed evenly, such as stirring and mixing. During the mixing process, it is preferable to mix water and magnesium sulfate first, and then add modifiers, anti-cracking agents, auxiliary agents, functional fillers and magnesium oxide for mixing. After the above mixing, a composite anti-corrosion coating is obtained.

[0044]...

Embodiment 1

[0049] 1. Raw materials:

[0050]

[0051] in:

[0052] The modifiers are: 40 parts of methyl cellulose, 45 parts of citric acid, 20 parts of phosphoric acid, and 30 parts of water glass.

[0053] 2. Preparation:

[0054] After mixing water and magnesium sulfate heptahydrate, add modifiers, anti-cracking agents, additives, functional fillers and magnesium oxide, and stir evenly to obtain composite anti-corrosion coatings.

Embodiment 2

[0056] 1. Raw materials:

[0057]

[0058]

[0059] in:

[0060] Modifiers are: 40 parts of methyl cellulose, 45 parts of citric acid, 30 parts of phosphoric acid, and 20 parts of water glass.

[0061] 2, preparation: with embodiment 1.

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Abstract

The invention provides a composite anti-corrosive coating and a preparation method thereof. The composite anti-corrosive coating provided by the invention is prepared from the following raw materials in parts by weight: 100 parts of magnesium oxide; 40-50 parts of magnesium sulfate; 40-50 parts of water; 1-3 parts of a modifier; 0.1-0.3 parts of an anti-cracking agent; 5-10 parts of an auxiliary agent; and 1-6 parts of a functional filler. The modifier comprises methyl cellulose, citric acid, phosphoric acid and water glass. The functional filler comprises graphene. The ultraviolet aging resistance, heat insulation property and adhesive strength of the composite anti-corrosive coating provided by the invention can be improved while the corrosion resistance is ensured.

Description

technical field [0001] The invention relates to the field of coatings, in particular to a composite anticorrosion coating and a preparation method thereof. Background technique [0002] Metal corrosion is a spontaneous and ubiquitous phenomenon that is a common problem faced by countries around the world. After the metal is corroded, it will change in shape, color and mechanical properties, causing frame damage, equipment damage, pipeline leakage, product pollution, causing vicious accidents such as combustion or explosion, and serious waste of resources and energy, which will make the national economy suffered huge losses. It is estimated that the annual economic loss caused by metal corrosion in developed countries in the world accounts for about 3.5% to 4.2% of their gross national product, which exceeds the sum of the annual losses of various catastrophes (fire, wind disaster and earthquake, etc.). Some people even estimate that about 100 million tons of metals are cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/08C09D7/65C09D7/61C09D7/63
CPCC09D1/00C09D5/08C09D7/65C09D7/61C09D7/63C09D7/70
Inventor 郝万军张虎润郝德昭陈子龙陈乐
Owner HAINAN UNIVERSITY
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