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Graphene/deimpurity polyaniline-containing anticorrosive coating and preparation method thereof

An anti-corrosion coating, graphene technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings and other directions, can solve the problems of single anti-corrosion method, general anti-corrosion effect, limited use scope, etc., to achieve excellent anti-corrosion performance and cheap application scope Pollution-free, wide-ranging effect

Active Publication Date: 2016-03-16
常州纳欧新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The anti-corrosion coating prepared by this method has a certain anti-corrosion effect, but the coating mainly uses zinc powder as anti-corrosion filler, the anti-corrosion method is single, the anti-corrosion effect is general and the consumption of zinc powder is large, thus limiting its application range

Method used

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  • Graphene/deimpurity polyaniline-containing anticorrosive coating and preparation method thereof
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  • Graphene/deimpurity polyaniline-containing anticorrosive coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Proportioning each component according to the following mass percentages:

[0020]

[0021] (1) Prepare a hydrochloric acid solution containing aniline, add 300 mesh graphene and mix evenly, then pre-cool to 0°C, wherein the concentration of aniline is 0.2mol / L, the concentration of hydrochloric acid is 0.3mol / L, and the concentration of graphene is 20mg / mL;

[0022] (2) Prepare an aqueous solution of ammonium persulfate containing hydrochloric acid, and pre-cool to 0° C., wherein the concentration of ammonium persulfate is 0.2 mol / L, and the concentration of hydrochloric acid is 0.3 mol / L;

[0023] (3) Add the dispersion liquid obtained in the first step into the reactor, stir at a constant speed and slowly add the solution prepared in the second step dropwise, control the temperature at 0°C for 5 hours, filter and wash, then put in 0.1mol / L NaOH solution Soak in medium for 2 hours, filter, wash, dry and grind to 250 mesh to prepare graphene / depurified polyaniline c...

Embodiment 2

[0026] Proportioning each component according to the following mass percentages:

[0027]

[0028] (1) Prepare a hydrochloric acid solution containing aniline, add 300 mesh graphene and mix evenly, then pre-cool to 8°C, wherein the concentration of aniline is 0.3mol / L, the concentration of hydrochloric acid is 0.4mol / L, and the concentration of graphene is 30mg / mL;

[0029] (2) Prepare an aqueous solution of ammonium persulfate containing hydrochloric acid, and pre-cool to 0°C, wherein the concentration of ammonium persulfate is 0.3mol / L, and the concentration of hydrochloric acid is 0.4mol / L;

[0030] (3) Add the dispersion obtained in the first step into the reactor, stir at a constant speed and slowly add the solution prepared in the second step dropwise, control the temperature at 0°C for 8 hours, filter and wash, and put in 0.2mol / L NaOH solution Soak in medium for 2 hours, filter, wash, dry and grind to 350 mesh to prepare graphene / depurified polyaniline composite mat...

Embodiment 3

[0033] Proportioning each component according to the following mass percentages:

[0034]

[0035] (1) Prepare a hydrochloric acid solution containing aniline, add 250 mesh graphene and mix evenly, and pre-cool to 5°C, wherein the aniline concentration is 0.5mol / L, the hydrochloric acid concentration is 0.6mol / L, and the graphene concentration is 50mg / mL;

[0036] (2) Prepare an aqueous solution of ammonium persulfate containing hydrochloric acid, and pre-cool to 5° C., wherein the concentration of ammonium persulfate is 0.5 mol / L, and the concentration of hydrochloric acid is 0.5 mol / L;

[0037] (3) Add the dispersion obtained in the first step into the reactor, stir at a constant speed and slowly add the solution prepared in the second step dropwise, control the temperature at 5°C for 6 hours, filter and wash, and put in 0.1mol / L NaOH solution Soak in medium for 4 hours, filter, wash, dry and grind to 250-350 mesh to prepare graphene / depurified polyaniline composite mater...

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Abstract

The invention belongs to the field of anticorrosive coating, and in particular, relates to a graphene / deimpurity polyaniline-containing anticorrosive coating. The anticorrosive coating is composed of the following raw materials in parts by weight: 20-80% of epoxy resin, 5-15% of a graphene / deimpurity polyanilin composite material, 5-10% of a zinc powder, 5-10% of a filler, 1-10% of a coloring pigment, 0.1-3% of a dispersion agent, 0.1-3% of a wetting agent, 0.1-3% of a thickening agent, 0.1-1% of a levelling agent, 0.1-1% of a defoaming agent, 0.1-1% of a bactericide, and 1-35% of water. In the preparation process of the anticorrosive coating, polyaniline is loaded on graphene by an in-situ polymerization method, so that the dispersion of polyaniline is improved, polyaniline agglomeration is avoided, and the graphene / deimpurity polyaniline-containing anticorrosive coating is prepared.

Description

technical field [0001] The invention relates to an anti-corrosion coating and a preparation method thereof, in particular to an anti-corrosion coating containing graphene / depurified polyaniline and a preparation method thereof. Background technique [0002] Metal iron has been used for more than 3,000 years since the Shang Dynasty in my country. It has excellent physical and chemical properties and is one of the most widely used and widely used metals in modern society. People are enjoying the convenience that steel brings to our lives, and metal corrosion has always troubled us. As one of the most widely used anti-corrosion methods, anti-corrosion coatings are easy to use, widely used and have excellent effects, but there are also a series of problems, such as large pollution and short anti-corrosion time. Therefore, it is a breakthrough to develop an environmentally friendly and efficient anti-corrosion coating. At the top of the current metal corrosion dilemma. Chinese ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D5/10C09D7/12
CPCC09D5/106C09D7/61C09D7/65C09D163/00C08L79/02C08K3/04C08K2003/0893
Inventor 姚超蔡克文左士祥罗士平刘文杰李霞章
Owner 常州纳欧新材料科技有限公司
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