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HCl-H2S corrosion resistant coating and preparation method thereof

A hcl-h2s, coating technology, applied in anti-corrosion coatings, polyurea/polyurethane coatings, polyester coatings, etc., can solve problems such as insufficient corrosion, safety problems and economic losses in industrial enterprises, and achieve the effect of improving the corresponding performance

Active Publication Date: 2021-05-18
ZHEJIANG YUTONG NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

HCl, H 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 of S aims to provide a kind of resistance to HCl, H 2 Anticorrosion coating with excellent corrosivity and corresponding preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A resistant HCl-H 2 S corrosion coatings, raw materials include 6-amino-2-picolinic acid, graphene oxide nanosheets, organic resins, diethylene glycol butyl ether, organosiloxane resins, dispersants, anti-corrosion fillers, leveling agents, defoamers ,water.

[0025] Firstly, the organic resin material functionalized with graphene ester of 6-amino-2-pyridinecarboxylate was prepared.

[0026] (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.

[0027] (2) Add the 6-amino-2-pyridine carboxylic acid graphene ester that step (1) obtains into toluene solvent and ultrasonically disperse evenly, then add organic resin, transfer to high-energy mechanical ball milling reaction vessel, at the condition of 600rpm in ball milling speed 6-amino-2-pyridinecarboxylate functionalized organic resin mate...

Embodiment 2

[0030] A resistant HCl-H 2 S corrosion coatings, raw materials include 6-amino-2-picolinic acid, graphene oxide nanosheets, organic resins, diethylene glycol butyl ether, organosiloxane resins, dispersants, anti-corrosion fillers, leveling agents, defoamers ,water.

[0031] Firstly, the organic resin material functionalized with graphene ester of 6-amino-2-pyridinecarboxylate was prepared.

[0032] (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.

[0033] (2) Add the 6-amino-2-pyridine carboxylic acid graphene ester that step (1) obtains into the toluene solvent and ultrasonically disperse evenly, then add the organic resin, and transfer it to the high-energy mechanical ball milling reaction vessel, at the condition that the ball milling speed is 400rpm 6-amino-2-pyridine carboxylate functio...

Embodiment 3

[0036] A resistant HCl-H 2 S corrosion coatings, raw materials include 6-amino-2-picolinic acid, graphene oxide nanosheets, organic resins, diethylene glycol butyl ether, organosiloxane resins, dispersants, anti-corrosion fillers, leveling agents, defoamers ,water.

[0037] Firstly, the organic resin material functionalized with graphene ester of 6-amino-2-pyridinecarboxylate was prepared.

[0038] (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.

[0039] (2) Add the 6-amino-2-pyridine carboxylic acid graphene ester that step (1) obtains into the toluene solvent and ultrasonically disperse evenly, then add the organic resin, and transfer it to the high-energy mechanical ball milling reaction vessel, at a ball milling speed of 500rpm 6-amino-2-pyridinecarboxylic acid graphene ester functional...

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PUM

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Abstract

The invention relates to an HCl-H2S corrosion 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 a graphene nanosheet to obtain 6-amino-2-picolinic acid graphene ester, and then functionalizing organic resin by using the obtained 6-amino-2-picolinic acid graphene ester 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 coating.

Description

technical field [0001] The invention belongs to the field of coatings, in particular to a HCl-H resistant 2 S corrosion coatings and methods for their preparation. 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 invention focuses on the anticorrosion problem in the fields of oil and gas exploitation and transportation. During oil and gas extraction and transportation, oil and gas contain water, HCl, H 2 S, CO 2 Such impurity gases make the metal transmission pipeline exposed to the humid, acidic and corrosive environment for a long time. Therefore, it is urgent to i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D133/04C09D175/04C09D167/08C09D5/08C09D7/63C09D7/65
CPCC09D163/00C09D133/04C09D175/04C09D167/08C09D5/08C09D7/63C09D7/65C08K2201/011C08L2205/03C08K2003/3045C08L83/04C08L71/02C08K9/04C08K3/042C08K3/34C08K5/06C08L29/04C08K3/30C08L33/02C08K7/26
Inventor 娄艳秀
Owner ZHEJIANG YUTONG NEW MATERIAL
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