Preparation method of anticorrosive paint for offshore petroleum pipeline

An anti-corrosion coating, offshore oil technology, applied in anti-corrosion coatings, anti-fouling/underwater coatings, coatings, etc., can solve the problems of reduced anti-corrosion performance, accelerated corrosion rate of pipeline surface, disappearance, etc.

Inactive Publication Date: 2022-08-02
东营峻茂石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing anti-corrosion coatings for offshore oil pipelines will gradually reduce or even disappear with the long-term use of oil pipelines, and a large number of marine organisms and microorganisms will adhere to the oil pipelines, which will intensify the corrosion rate of the pipeline surface;

Method used

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  • Preparation method of anticorrosive paint for offshore petroleum pipeline
  • Preparation method of anticorrosive paint for offshore petroleum pipeline
  • Preparation method of anticorrosive paint for offshore petroleum pipeline

Examples

Experimental program
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Effect test

Embodiment 1

[0047] A method for preparing an anti-corrosion coating for offshore oil pipelines, the coating comprising component A and component B prepared by mixing component A and component B in a mass ratio of 6:1;

[0048] The component A includes the following raw materials in parts by weight: 50 parts of modified epoxy resin emulsion, 15 parts of modified graphene, 2 parts of dispersant, 1 part of leveling agent, 1 part of defoamer, 10 parts of film-forming aids, 20 parts of deionized water;

[0049] Component A is made by the following steps:

[0050] The above-mentioned raw materials are stirred for 1 h under the condition that the rotating speed is 1500 r / min to obtain component A;

[0051] Component B is ethylenediamine, benzoyl peroxide, and ethylene glycol mixed in a mass ratio of 1:1:10.

[0052] The modified epoxy resin emulsion is made by the following steps:

[0053] Step A1: Add aluminum trichloride and carbon tetrachloride into the reaction kettle, under the condition...

Embodiment 2

[0061] A method for preparing an anti-corrosion coating for offshore oil pipelines, the coating comprising component A and component B prepared by mixing component A and component B in a mass ratio of 6:1;

[0062] The component A includes the following raw materials in parts by weight: 65 parts of modified epoxy resin emulsion, 18 parts of modified graphene, 3 parts of dispersant, 2 parts of leveling agent, 2 parts of defoamer, 15 parts of film-forming aids, 25 parts of deionized water;

[0063] Component A is made by the following steps:

[0064] The above-mentioned raw materials are stirred for 2h under the condition that the rotating speed is 1500r / min to obtain component A;

[0065] Component B is ethylenediamine, benzoyl peroxide, and ethylene glycol mixed in a mass ratio of 1:1:10.

[0066] The modified epoxy resin emulsion is made by the following steps:

[0067] Step A1: Add aluminum trichloride and carbon tetrachloride into the reaction kettle, under the condition...

Embodiment 3

[0075] A method for preparing an anti-corrosion coating for offshore oil pipelines, the coating comprising component A and component B prepared by mixing component A and component B in a mass ratio of 6:1;

[0076] The component A includes the following raw materials in parts by weight: 80 parts of modified epoxy resin emulsion, 30 parts of modified graphene, 5 parts of dispersant, 3 parts of leveling agent, 3 parts of defoamer, 20 parts of film-forming aids, 30 parts of deionized water;

[0077] Component A is made by the following steps:

[0078] The above-mentioned raw materials are stirred for 2h under the condition that the rotating speed is 2000r / min to obtain component A;

[0079] Component B is ethylenediamine, benzoyl peroxide, and ethylene glycol mixed in a mass ratio of 1:1:10.

[0080] The modified epoxy resin emulsion is made by the following steps:

[0081] Step A1: Add aluminum trichloride and carbon tetrachloride into the reaction kettle, under the condition...

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Abstract

The invention relates to the technical field of coating preparation, and discloses a preparation method of an anticorrosive coating for offshore petroleum pipelines, and the coating is prepared by mixing a component A and a component B according to a mass ratio of 6: 1, the component A is prepared from the following raw materials in parts by weight: 50 to 80 parts of modified epoxy resin emulsion, 15 to 30 parts of modified graphene, 2 to 5 parts of dispersing agent, 1 to 3 parts of flatting agent, 1 to 3 parts of defoaming agent, 10 to 20 parts of coalescing agent and 20 to 30 parts of deionized water; a main chain of a molecular chain of the modified epoxy resin emulsion contains sulfur atoms, the sulfur atoms are easily combined with sulfydryl through hydrogen bonds, an amino acid structure necessary for growth and reproduction of bacteria contains sulfydryl, so that amino acid required by the bacteria can be combined with the molecular chain of the epoxy resin emulsion, and then bacterial metabolism is influenced; and marine organisms can be prevented from being adsorbed on the surface of the coating, so that the influence of the marine organisms and microorganisms on corrosion resistance is avoided.

Description

technical field [0001] The invention relates to the technical field of coating preparation, in particular to a preparation method of an anti-corrosion coating for offshore oil pipelines. Background technique [0002] Anti-corrosion coatings, generally divided into conventional anti-corrosion coatings and heavy-duty anti-corrosion coatings, are an indispensable coating in paint coatings. Conventional anti-corrosion coatings play an anti-corrosion effect on metals under normal conditions and protect non-ferrous metals. Life, heavy-duty anti-corrosion coatings refer to a class of anti-corrosion coatings that can be used in relatively harsh corrosive environments compared to conventional anti-corrosion coatings, and have a longer protection period than conventional anti-corrosion coatings; [0003] The main difference between heavy-duty anti-corrosion coatings and conventional anti-corrosion coatings is that they have higher technical content and greater technical difficulty, in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C09D5/08C09D5/16C09D5/14C08F283/10C08F220/58C08F212/08C08F220/06
CPCC09D151/08C09D5/08C09D5/1662C09D5/14C08F283/10C08F220/58C08F212/08C08F220/06C08K9/08C08K3/042
Inventor 王慎曙
Owner 东营峻茂石油科技有限公司
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