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High performance super-amphiphobic conductive multi-functional corrosion-resistant coating and preparation method thereof

A kind of anti-corrosion coating and super amphiphobic technology, applied in the direction of coating, epoxy resin coating, fibrous filler, etc., to achieve the effect of unique structure, high effective specific surface area and strong adhesion

Inactive Publication Date: 2016-01-13
NORTHEAST GASOLINEEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention is to overcome the shortcomings and deficiencies of existing super amphiphobic coatings and polyaniline conductive coatings in the background technology, and provide a high-performance super Amphiphobic conductive multifunctional anti-corrosion coating

Method used

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  • High performance super-amphiphobic conductive multi-functional corrosion-resistant coating and preparation method thereof
  • High performance super-amphiphobic conductive multi-functional corrosion-resistant coating and preparation method thereof
  • High performance super-amphiphobic conductive multi-functional corrosion-resistant coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Using nano-silica as nano-filler and epoxy resin, ethylene-tetrafluoroethylene copolymer, and fluorinated ethylene-propylene copolymer as the coating matrix, a super-amphiphobic conductive coating with excellent anti-corrosion properties was prepared on an aluminum plate, and Test the anti-corrosion performance of the coating in the environment of strong acid, strong alkali and high concentration salt water.

[0043] (1) Carbon nanofiber modification

[0044] After mixing 30mL of concentrated nitric acid and 90mL of concentrated sulfuric acid, add 0.5g of carbon nanofibers, heat to 80°C with a constant temperature magnetic stirrer and stir for 4 hours at a constant temperature, after cooling to room temperature, wash with distilled water until neutral, and finally in an oven at 60°C Drying at low temperature for 24 hours to obtain carboxylated carbon nanofibers.

[0045] (2) Preparation of polyaniline / carbon nanofiber composites

[0046] Prepare 1L of sulfuric acid so...

Embodiment 2

[0061] Using nano-molybdenum disulfide as filler and epoxy resin, polydene tetrafluoroethylene, and fluorinated ethylene-propylene copolymer as the coating matrix, a super-amphiphobic conductive anti-corrosion coating was prepared on the steel plate.

[0062] Prepared according to the steps of Example 1, the difference with Example 1 is:

[0063] The concentration of carbon nanofibers in the mixed acid solution in step (1) is 3 mg / mL;

[0064] The mass ratio of aniline to carboxylated carbon nanofibers in step (2) is 1:0.2;

[0065] In step (3), the nanometer filler is molybdenum disulfide nanometer, the particle size is about 80nm, and the concentration is 3mg / mL;

[0066] In step (4), the coating base is a steel plate made of X80 material commonly used in petroleum pipelines; in the primer, linear aliphatic epoxy resin, polyamide curing agent, polyvinylidene fluoride, polyaniline / carbon nanofiber composite material, The mass ratio of ethyl acetate solvent is 1:0.15:0.2:0.1...

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Abstract

The invention relates to a high performance super-amphiphobic conductive multi-functional corrosion-resistant coating, which is characterized by comprising a bottom layer component and a surface layer component, wherein the bottom layer component is epoxy resins, epoxy curing agents, organic fluorines, polyaniline / carbon nanofibers composite materials, the surface layer component is organic fluorines, low surface energy modified nanofillers and fluorine silane coupling agents. The high performance super-amphiphobic conductive multi-functional corrosion-resistant coating can have the advantages of superamphiphobic, drag reduction, abrasion resistance and pit corrosion resistance, and is low in cost. The invention further provides a method for preparing the high performance super-amphiphobic conductive multi-functional corrosion-resistant coating.

Description

technical field [0001] The invention relates to the field of preparation of super-amphiphobic conductive multifunctional anti-corrosion coatings, in particular to a coating with super-hydrophobic, super-oleophobic, drag-reducing, wear-resisting and excellent anti-corrosion properties in the petrochemical industry and a preparation method thereof. Background technique [0002] Corrosion is a major problem in the petrochemical industry, especially the perforation and leakage of oil pipelines and storage tanks will not only seriously affect the normal production of oil fields, cause huge economic losses and safety accidents, but also have serious consequences for society and the environment. The anti-corrosion mechanism of the traditional insulating organic coating is a shielding effect. Once there are pinholes or damage on the coating, a corrosion battery with a large cathode and a small anode will be formed, so that the corrosion will be concentrated in the pinhole or damage, ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D127/12C09D179/02C09D7/12C08G73/02C08K7/06C09C1/28C09C3/12
Inventor 袁瑞霞汪怀远朱艳吉吴诗琪刘战剑高斯萌
Owner NORTHEAST GASOLINEEUM UNIV
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