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.
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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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