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Preparation method of carbon-based metal anticorrosive paint

A technology for anti-corrosion coatings and base metals, applied in the direction of anti-corrosion coatings, coatings, etc., can solve the problems of affecting the anti-corrosion performance of coatings, easy agglomeration and precipitation of carbon materials, and poor compatibility

Inactive Publication Date: 2018-09-04
郦璋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention is aimed at the current common carbon-doped anti-corrosion coatings. When carbon materials are filled into the coatings as anti-corrosion fillers, the carbon materials are easy to agglomerate in the coatings due to poor dispersion and poor compatibility with the coating resin matrix. Precipitation, a defect that affects the anti-corrosion performance of coatings, provides a preparation method for carbon-based metal anti-corrosion coatings

Method used

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  • Preparation method of carbon-based metal anticorrosive paint

Examples

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example 1

[0021] Weigh the pomelo peel and put it into a jet mill to pulverize for 1 hour to obtain the pulverized grapefruit peel, mix the pulverized grapefruit peel with biogas slurry and a zinc chloride solution with a mass fraction of 30% in a mass ratio of 10:15:7, and then flatten Spread the stainless steel trays on stainless steel trays, then move the stainless steel trays into a greenhouse with a temperature of 30°C and a relative air humidity of 60%, and let them stand for moldy treatment for 5 days to obtain moldy substances; move the moldy substances into a carbonization furnace under nitrogen protection. , heated up to 600°C, kept warm and carbonized for 1 hour to obtain porous biochar, mixed porous biochar with methylene chloride and triethylamine at a mass ratio of 5:25:1, and then stirred with a mixer at a speed of 800r / min. During the stirring process, octadecanoyl chloride with a mass of 20% of the porous biochar was added dropwise, and the stirring reaction was continue...

example 2

[0023] Weigh the pomelo peel and put it into a jet mill to pulverize for 2 hours to obtain the pulverized grapefruit peel, mix the pulverized grapefruit peel with biogas slurry and a zinc chloride solution with a mass fraction of 30% in a mass ratio of 10:15:7, and then flatten Lay it on a stainless steel tray, then move the stainless steel tray into a greenhouse with a temperature of 33°C and a relative air humidity of 65%, and let it stand for moldy treatment for 6 days to obtain moldy matter; move the moldy matter into a carbonization furnace, under nitrogen protection , heated to 650°C, kept warm and carbonized for 2 hours to obtain porous biochar, mixed porous biochar with dichloromethane and triethylamine according to the mass ratio of 5:25:1, and then stirred with a mixer at a speed of 850r / min, During the stirring process, octadecanoyl chloride with a mass of 20% porous biochar was added dropwise, and the stirring reaction was continued for 4 hours. After the reaction w...

example 3

[0025] Weigh the pomelo peel and put it into a jet mill to pulverize for 2 hours to obtain the pulverized grapefruit peel, mix the pulverized grapefruit peel with biogas slurry and a zinc chloride solution with a mass fraction of 30% in a mass ratio of 10:15:7, and then flatten Spread it on a stainless steel tray, and then move the stainless steel tray into a greenhouse with a temperature of 35°C and a relative air humidity of 70%, and let it stand for 7 days for moldy treatment to obtain moldy matter; move the moldy matter into a carbonization furnace, under nitrogen protection. , heated to 700°C, kept warm and carbonized for 2 hours to obtain porous biochar, mixed porous biochar with methylene chloride and triethylamine according to the mass ratio of 5:25:1, and then stirred with a stirrer at a speed of 900r / min. During the stirring process, octadecanoyl chloride with 20% of the mass of porous biochar was added dropwise, and the stirring reaction was continued for 4 hours. Af...

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Abstract

The invention relates to a preparation method of carbon-based metal anticorrosive paint, which belongs to the technical field of paint preparation. The shaddock peel with a loose porous structure is used as a raw material and mixed with biogas slurry and metal salt solution after being crushed, finally the mixture is mildewed at a high temperature and high humidity condition, then a mildewed product is carbonized and reacts with long-carbon-chain alkyl acyl chloride to obtain a pre-modified charcoal, finally the pre-modified charcoal is finally modified by utilizing microorganisms and grease to obtain modified biological porous carbon, and the modified biological porous carbon is used as filler to be mixed with other raw materials, so that the carbon-based metal anticorrosive paint is finally obtained. According to the carbon-based anticorrosive paint prepared by the invention, the compatibility between the carbon-based filler and the paint matrix is good, no clustering precipitate iseasy to generate, the anticorrosive effect is excellent, and the application prospect is wide.

Description

technical field [0001] The invention relates to a method for preparing a carbon-based metal anti-corrosion coating, which belongs to the technical field of coating preparation. Background technique [0002] Coating a certain thickness of organic coating on the metal surface is an effective method to protect the metal and reduce the corrosion rate. Generally speaking, the anti-corrosion performance of organic coatings is mainly to prevent the corrosive medium from penetrating into the metal substrate to react, and to play a role of physical protection for the metal substrate. When the metal is in a corrosive environment, moisture and oxygen or other ions in the corrosive medium are diffused into the coating, and when these moisture, oxygen or other ions reach the surface of the metal substrate, it is possible to electrochemically react with the metal , causing the metal to corrode. Moreover, as the corrosion reaction proceeds, the binding force between the organic coating a...

Claims

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Application Information

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IPC IPC(8): C09D151/08C09D7/62C09D5/08
CPCC09D151/08C08L2205/025C09D5/08C09D7/62C09D7/70C08L51/08C08K9/04C08K7/24
Inventor 郦璋张晶
Owner 郦璋
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