Preparation method of graphene anticorrosive paint

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

Active Publication Date: 2015-11-25
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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  • Preparation method of graphene anticorrosive paint
  • Preparation method of graphene anticorrosive paint
  • Preparation method of graphene anticorrosive paint

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preparation example Construction

[0075] A kind of preparation method of anticorrosion epoxy resin coating, comprises the steps:

[0076] 1, the preparation method of described anticorrosion coating first component is:

[0077] (1) Add the epoxy resin of the formula amount of component A into the stirring container, and stir at the speed of 1000-1500r / min;

[0078] (2) Then add the solvent, zinc powder, graphene and filler in the formula of component A in sequence, and continue to stir at a speed of 2000-3000r / min until the dispersion is uniform;

[0079] (3) Add the mixture obtained in step (2) into a three-stage grinder and grind it to 20-60 μm to obtain component A;

[0080] II, the preparation method of the second component of the anticorrosion coating is:

[0081] (4) A mixed solvent made of xylene and isobutanol in 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;

[0082] III...

Embodiment 5

[0089] A kind of anticorrosion epoxy resin coating comprises following component by weight percentage:

[0090] Component A:

[0091]

[0092] Wherein, described epoxy resin is the SM-601 epoxy resin (dispersion solvent is xylene) that solid content is 54%, and the mass percent content sum of graphene, zinc powder and filler is 60wt%; Described graphene It is oxidized by the Staudenmaier method, and then obtained by pyrolytic expansion and peeling;

[0093] B component:

[0094] Polyamide resin curing agent 40wt%

[0095] Xylene and isobutanol m:m=1:1 (fixed) 60wt%;

[0096] Wherein, the sum of each component in the B component is 100wt%.

[0097] The preparation method of described anticorrosion epoxy resin coating comprises the steps:

[0098] (1) Add the epoxy resin of the formula amount of component A into the stirring container, and stir under the rotating speed of 1500r / min;

[0099] (2) Then add the solvent, zinc powder, graphene and filler in the formula amount ...

Embodiment 6

[0105] A kind of anticorrosion epoxy resin coating comprises following component by weight percentage:

[0106] Component A:

[0107]

[0108] Wherein, described epoxy resin is the SM-601 epoxy resin (dispersion solvent is xylene) that solid content is 54%, and the mass percent content sum of graphene, zinc powder and filler is 80wt%; Described graphene It is oxidized by Brodie method, and then obtained by ultrasonic dispersion;

[0109] B component:

[0110] Acrylic resin curing agent 60wt%

[0111] Xylene and isobutanol (m:m=1:1) 40wt%;

[0112] Wherein, the sum of each component in the B component is 100wt%.

[0113] The preparation method of described anticorrosion epoxy resin coating comprises the steps:

[0114] (1) Add the epoxy resin of the formula amount of component A into the stirring container, and stir under the rotating speed of 1000r / min;

[0115] (2) Then add the solvent, zinc powder, graphene and filler in the formula amount of component A in sequence...

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Abstract

A zinc-rich epoxy anti-corrosion coating, including a component A, capable of being cured into a film, and a component B containing a curing agent; component A contains, by weight percentage, graphene (0.1-5wt%), zinc powder (0-35wt%), filler (30-70wt%), 10-20wt% epoxy resin having 54wt% solids content, and solvent (10-20wt%), wherein the sum of the weight percentages of the graphene, zinc powder and filler is 60-80wt% and the sum of the weight percentages of all components of compenent A is 100wt%. The present invention adds graphene into an anti-corrosion coating, thus decreasing the thickness of the coating film, increases the anti-corrosion effect while decreasing zinc powder contents, reduces the amount of zinc oxide vapor generated during welding, and is environmentally friendly.

Description

[0001] This application is a divisional application, the original application number is: 201310069144.8, the original application filing date is: March 6, 2013, and the original application name is: a zinc-rich epoxy anti-corrosion coating and its preparation. technical field [0002] 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 [0003] 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. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09D5/10
CPCC09D5/10C09D5/106C09D7/12C09D163/00C08K2003/0893C08K3/042C09D7/61C08K3/04C08K3/08
Inventor 瞿研
Owner THE SIXTH ELEMENT CHANGZHOU MATERIALS TECH
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