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Zinc-rich epoxy anticorrosion paint and preparation method thereof

A technology of anti-corrosion coatings and zinc-rich epoxy, which is applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of complex graphene addition steps, achieve good chemical stability, wide application range, and reduce content Effect

Active Publication Date: 2013-06-26
THE SIXTH ELEMENT CHANGZHOU MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the anticorrosion coating described in CN102604533A, the addition steps of graphene are complicated, and solutions such as oxidants need to be prepared

Method used

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  • Zinc-rich epoxy anticorrosion paint and preparation method thereof
  • Zinc-rich epoxy anticorrosion paint and preparation method thereof
  • Zinc-rich epoxy anticorrosion paint and preparation method thereof

Examples

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preparation example Construction

[0073] A kind of preparation method of anticorrosion epoxy resin coating, comprises the steps:

[0074] 1, the preparation method of described anticorrosion paint first component is:

[0075] (1) Add the amount of epoxy resin formulated in Group A into the stirring container, and stir at a speed of 1000-1500r / min;

[0076] (2) Then add the solvent, zinc powder, graphene and filler in the formula of Part A in sequence, and continue to stir at the speed of 2000-3000r / min until the dispersion is uniform;

[0077] (3) Add the mixture obtained in step (2) into a three-stage grinder and grind it to 20-60 μm to obtain component A;

[0078] II, the preparation method of the second component of the anticorrosion coating is:

[0079] (4) A mixed solvent made of xylene and isobutanol at a weight ratio of 1:1 is used as the solvent for component B. Sequentially mix the curing agent and the solvent in the formulation amount of component B to obtain component B;

[0080] III. Mix the pr...

Embodiment 5

[0087] A kind of anticorrosion epoxy resin coating comprises following component by weight percentage:

[0088]

[0089] Wherein, the epoxy resin is SM-601 epoxy resin with a solid content of 54% (the dispersion solvent is xylene), and the sum of the mass percentages of graphene, zinc powder and filler is 60wt%; the graphene It is oxidized by the Staudenmaier method, and then obtained by pyrolytic expansion and peeling;

[0090] B component:

[0091] Polyamide resin curing agent 40wt%

[0092] Xylene and isobutanol m:m=1:1 (fixed) 60wt%;

[0093] Wherein, the sum of each component in the B component is 100wt%.

[0094] The preparation method of described anticorrosion epoxy resin coating comprises the steps:

[0095] (1) Add the amount of epoxy resin formulated in Part A into the stirring container, and stir at a speed of 1500r / min;

[0096] (2) Then add the solvent, zinc powder, graphene and filler in the formula of Part A in sequence, and continue to stir at the spee...

Embodiment 6

[0102] A kind of anticorrosion epoxy resin coating comprises following component by weight percentage:

[0103] Component A:

[0104]

[0105] Wherein, the epoxy resin is SM-601 epoxy resin with a solid content of 54% (the dispersion solvent is xylene), and the sum of the mass percentages of graphene, zinc powder and filler is 80wt%; the graphene It is oxidized by Brodie method, and then obtained by ultrasonic dispersion;

[0106] B component:

[0107] Acrylic resin curing agent 60wt%

[0108] Xylene and isobutanol (m:m=1:1) 40wt%;

[0109] Wherein, the sum of each component in the B component is 100wt%.

[0110] The preparation method of described anticorrosion epoxy resin coating comprises the steps:

[0111] (1) Add the amount of epoxy resin formulated in Part A into the stirring container, and stir at a speed of 1000r / min;

[0112] (2) Then add the solvent, zinc powder, graphene and filler in the formula of Part A in sequence, and continue to stir at the speed of ...

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Abstract

The invention relates to a zinc-rich epoxy anticorrosion paint. The paint comprises a component A which can be cured into a film and a component B comprising a curing agent. The component A comprises the components of, by mass, 0.1-5wt% of graphene, 0-35wt% of zinc powder, 30-70wt% of a filling material, 10-20wt% of epoxy resin with a solid content of 54%, and 10-20wt% of a solvent, wherein a total mass percentage of graphene, zinc powder, and the filling material is 60-80wt%, and a total mass content of the component A is 100wt%. According to the invention, graphene is added into the anticorrosion paint, such that paint film thickness is greatly reduced. Through the selection of the components, the anticorrosion effect is improved, and zinc powder content is greatly reduced. Therefore, a zinc-rich paint anticorrosion manner with the cost of sacrifice of zinc powder is overcome, and zinc oxide mist produced during welding is greatly reduced. The paint is environmentally friendly.

Description

technical field [0001] The invention relates to an anti-corrosion coating and a preparation method thereof. Specifically, the invention relates to a zinc-rich epoxy anti-corrosion coating based on epoxy resin and containing graphene and a preparation method thereof. Background technique [0002] Corrosion is the phenomenon that metal, concrete, wood and other objects are damaged by the chemical or electrochemical action of the surrounding environmental medium. According to relevant statistics, the annual economic loss caused by corrosion in the world is about 700 billion to 1 trillion US dollars, which is about 6 times the sum of economic losses caused by natural disasters such as earthquakes, floods, and typhoons. In my country, the annual loss due to corrosion is about 800 billion yuan, accounting for about 3% of GDP. Various techniques have long been used to slow down the rate at which corrosion occurs. [0003] At present, the most important anti-corrosion coatings are...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D163/02C09D7/12C09D5/10
CPCC08K2003/0893C09D5/106C09D163/00C08K3/042C09D7/61C08K3/04C08K3/08
Inventor 刘琼馨屈晓兰许红涛瞿研
Owner THE SIXTH ELEMENT CHANGZHOU MATERIALS TECH
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