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Anticorrosive and conductive coating and preparation method thereof

A coating and coating technology, applied in anti-corrosion coatings, conductive coatings, epoxy resin coatings, etc., can solve the problems of electrical conductivity, oil resistance, water resistance, oil resistance and non-conductivity.

Inactive Publication Date: 2016-10-12
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are some defects in the coatings used for oil tank trucks, such as oil resistance, non-conductivity, conductivity, oil resistance, water resistance, etc.

Method used

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  • Anticorrosive and conductive coating and preparation method thereof
  • Anticorrosive and conductive coating and preparation method thereof
  • Anticorrosive and conductive coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Example 1 - Coating 1

[0093] Disperse 0.03g of pyrogallol, 0.1g of carbon nanotubes, and 0.2g of graphene powder in 1.2L of tetrahydrofuran, ultrasonicate for 1.5 hours, add the resulting dispersion slurry to 100g of epoxy resin 6101, and then add 20mL of acetic acid in sequence Ethyl ester, 10mL xylene, 0.1g BYK085, 0.1g BYK354, 0.3g diatomaceous earth, 5.0g titanium dioxide and 10.0g barium sulfate, stirred at 1500r / min for 30min, then added 90g of polyamide 650, stirred evenly to obtain The coating 1.

[0094] result:

[0095] According to GB50393, GB / T 1732, ASTM-B117, GB1763, GB9274, the results are shown in Table 2 below. The surface resistivity, impact strength, salt spray resistance, salt water resistance and acid and alkali resistance of coating 1 are all meet the requirements.

[0096] Coating 1 is coated on the Q235 carbon steel, soaked in the 3.5%NaCl solution for different time AC impedance spectrograms see figure 1 , the low-frequency impedance modul...

Embodiment 2-

[0097] Example 2 - Coating 2

[0098] With embodiment 1, difference is:

[0099] Disperse 0.02g of pyrogallol, 0.15g of carbon nanotubes, and 0.15g of graphene powder in 1.0L of acetone, 0.4g of diatomaceous earth, 6.0g of titanium dioxide, 11.0g of barium sulfate, and 11.0g of polyamide 650 80g, the coating 2 can be obtained.

[0100] result:

[0101] According to GB50393, GB / T 1732, ASTM-B117, GB1763, GB9274, the results are shown in Table 2 below. The surface resistivity, impact strength, salt spray resistance, salt water resistance and acid and alkali resistance of coating 2 are all meet the requirements.

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Abstract

The invention provides an anti-corrosion conductive coating and a preparation method thereof. The coating comprises: graphene, carbon nanotube, dispersant, epoxy resin, curing agent and auxiliary agent. Graphene and carbon nanotubes are uniformly dispersed in organic solvent under the action of dispersant, and added to epoxy resin to prepare graphene / epoxy coating. The process is simple and the comprehensive performance is excellent.

Description

technical field [0001] The invention belongs to the field of protective materials, and in particular, the invention relates to an anti-corrosion conductive coating and a preparation method thereof. Background technique [0002] With the extension of the running time of metal tank trucks, the problems of corrosion and aging of tank trucks have become increasingly prominent. Anti-corrosion coatings have the advantages of low cost, simple construction, strong adaptability, easy maintenance and outstanding economy, and are widely used in metal tank anti-corrosion. According to the national standard GB50393-2008, the surface coating of petroleum storage tanks and tank trucks must not only have good anti-corrosion, acid and alkali resistance and oil resistance, but also meet the requirements of static electricity conduction, and the surface resistance of the coating should reach 10 8 -10 11 Ωcm, its physical and mechanical properties are also superior. The epoxy coating itself ...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D5/24C09D5/08C09D7/12
CPCC09D163/00C08K3/04C08K5/05C08K5/13C08K7/24C08K13/02C08L2201/04C09D5/08C09D5/24C09D7/61C09D7/70
Inventor 王立平刘栓赵海超郭小平程庆利
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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