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HCl-H2S corrosion-resistant and high-temperature-resistant coating and preparation method thereof

A high-temperature-resistant coating, hcl-h2s technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, polyester coatings, etc., can solve the safety problems of industrial enterprises, economic loss, S corrosiveness, insufficient high temperature resistance, and insufficient corrosiveness And other issues

Active Publication Date: 2021-05-18
中环涂层技术(广东)有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing anti-corrosion coatings are resistant to HCl, H 2 S Corrosion, high temperature resistance, especially resistance to HCl and H at high temperature 2 The lack of corrosiveness of S has brought serious safety problems and huge economic losses to the corresponding industrial enterprises.
Therefore, the present invention specifically solves the anti-HCl, H 2 The problem of insufficient corrosion resistance and high temperature resistance of S aims to provide a kind of HCl, H 2 Anticorrosion coating with excellent corrosion resistance and high temperature resistance and corresponding preparation method thereof

Method used

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  • HCl-H2S corrosion-resistant and high-temperature-resistant coating and preparation method thereof

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Effect test

Embodiment 1

[0025] A resistant HCl-H 2 S corrosion and high temperature resistant coatings, raw materials include 6-amino-2-pyridine carboxylic acid, graphene oxide nanosheets, organic resin, polyethylene polyamine, trimethylolpropane trimethacrylate, diethylene glycol butyl ether, Organosiloxane resins, dispersants, anti-corrosion fillers, leveling agents, defoamers, water.

[0026] Firstly, the organic resin material functionalized with graphene ester of 6-amino-2-pyridinecarboxylate was prepared.

[0027] (1) Add 6-amino-2-pyridinecarboxylic acid and graphene nanosheets into the reactor according to the mass ratio of 10:2, use zinc isooctanoate as a catalyst, and react at 135°C for 12h to obtain 6-amino- Graphene 2-pyridinecarboxylate.

[0028] (2) Mix the organic resin and diethylene glycol butyl ether according to the mass ratio of 1:1, then heat up to 70°C, add polyethylene polyamine for heat preservation reaction for 1h, the molar ratio of polyethylene polyamine to organic resin ...

Embodiment 2

[0032]A resistant HCl-H 2 S corrosion and high temperature resistant coatings, raw materials include 6-amino-2-pyridine carboxylic acid, graphene oxide nanosheets, organic resin, polyethylene polyamine, trimethylolpropane trimethacrylate, diethylene glycol butyl ether, Organosiloxane resins, dispersants, anti-corrosion fillers, leveling agents, defoamers, water.

[0033] Firstly, the organic resin material functionalized with graphene ester of 6-amino-2-pyridinecarboxylate was prepared.

[0034] (1) Add 6-amino-2-pyridinecarboxylic acid and graphene oxide nanosheets into the reactor at a mass ratio of 10:3, use zinc isooctanoate as a catalyst, and react at 120°C for 13 hours to obtain 6-amino - Graphene 2-pyridinecarboxylate.

[0035] (2) Mix the organic resin and diethylene glycol butyl ether according to the mass ratio of 1:(1-2), then heat up to 80°C, add polyethylene polyamine for heat preservation reaction for 1h, polyethylene polyamine and organic The molar ratio of r...

Embodiment 3

[0040] A resistant HCl-H 2 S corrosion and high temperature resistant coatings, raw materials include 6-amino-2-pyridine carboxylic acid, graphene oxide nanosheets, organic resin, polyethylene polyamine, trimethylolpropane trimethacrylate, diethylene glycol butyl ether, Organosiloxane resins, dispersants, anti-corrosion fillers, leveling agents, defoamers, water.

[0041] Firstly, the organic resin material functionalized with graphene ester of 6-amino-2-pyridinecarboxylate was prepared.

[0042] (1) Add 6-amino-2-pyridinecarboxylic acid and graphene oxide nanosheets into the reactor at a mass ratio of 10:1, use zinc isooctanoate as a catalyst, and react at 145°C for 10 hours to obtain 6-amino - Graphene 2-pyridinecarboxylate.

[0043] (2) Mix the organic resin and diethylene glycol butyl ether according to the mass ratio of 1:2, then heat up to 75°C, add polyethylene polyamine for heat preservation reaction for 1h, the molar ratio of polyethylene polyamine to organic resin ...

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Abstract

The invention relates to a HCl-H2S corrosion-resistant and high-temperature-resistant coating which is prepared from the following raw materials: 6-amino-2-picolinic acid, graphene nanosheets, organic resin, polyethylene polyamine, trimethylolpropane trimethacrylate, diethylene glycol monobutyl ether, organosiloxane resin, a dispersing agent, an anticorrosive filler, a flatting agent, a defoaming agent and water. The preparation method comprises the following steps: firstly, carrying out esterification reaction on 6-amino-2-picolinic acid and graphene nanosheets to obtain 6-amino-2-picolinic acid graphene ester, then carrying out reaction on organic resin, polyethylene polyamine and trimethylolpropane trimethacrylate to obtain cross-linked modified organic resin, finally, using the obtained 6-amino-2-picolinic acid graphene ester for functionalizing cross-linked modified organic resin to obtain a 6-amino-2-picolinic acid graphene ester functionalized organic resin material, and mixing and stirring the 6-amino-2-picolinic acid graphene ester functionalized organic resin material with other components to obtain the HCl-H2S corrosion resistant and high temperature resistant coating.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a HCl-H resistant 2 S corrosion, high temperature resistant coating and preparation method thereof. Background technique [0002] Coatings are often used on the surface of various structural or functional materials to achieve corresponding protective functions. The protective functions of existing coatings are mainly concentrated in common protective fields such as sealing protection, anti-oxidation, anti-corrosion, anti-rust, etc. There is little research on coatings in special protective fields or fields with high protection requirements. [0003] The present invention focuses on the chemical synthesis field and the corresponding chemical product transportation field, such as the hydrochloric acid synthesis and transportation field, the hydrogen sulfide synthesis and transportation field, the oil and gas exploitation and transportation field, and usually requires that the corresponding...

Claims

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Application Information

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IPC IPC(8): C09D163/00C09D167/08C09D175/04C09D5/08C09D7/62C09D7/61
CPCC09D163/00C09D5/08C09D7/62C09D7/61C09D167/08C09D5/18C09D175/04C08K2003/3045C08L2201/08C08L83/04C08K9/04C08K3/042C08K3/34C08K3/30C08K7/26
Inventor 娄艳秀
Owner 中环涂层技术(广东)有限公司
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