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Anti-drag wear-resistant paint for pipelines and preparation method thereof

A technology of wear-resistant coatings and pipelines, which is applied in the direction of pipeline damage/abrasion prevention, pipeline protection, epoxy resin coatings, etc. It can solve problems such as unstable quality, difficult construction, complex components of drag-reducing and wear-resistant coatings, and achieve excellent performance Mechanical properties, convenient construction, and low toxicity

Inactive Publication Date: 2012-11-21
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the existing oil and natural gas long-distance pipeline drag-reducing and wear-resistant coating components, such as complex components, unstable quality, and difficult construction, and provide a new type of drag-reducing and wear-resistant coating for pipelines and its preparation method. The coating has Composed of components A and B, the quality is stable and the construction is simple

Method used

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  • Anti-drag wear-resistant paint for pipelines and preparation method thereof
  • Anti-drag wear-resistant paint for pipelines and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: This drag-reducing and wear-resistant coating for pipelines includes A component and B component, wherein A component includes epoxy resin with a mass percentage of 68.8%, butyl acetate with a mass percentage of 30%, and a layer with a mass percentage of 1% Shape-spherical nano filler, 0.1% by mass percentage of polyethylacrylate leveling agent and 0.1% by mass percentage of polysiloxane defoamer, B component is polyamide-6 resin; A component and B component according to The mass ratio is 3:1 for mixed use.

[0028]Wherein the lamellar-spherical nanofiller is prepared as follows: adding organic clay, ethanol with a mass percentage concentration of 98%, distilled water and ammoniacal liquor with a mass percentage concentration of 28% in the reactor, wherein the ratio of ethanol to distilled water is 90:10, The amount of ammonia water added is 5% of the total mass of ethanol and distilled water, and the amount of organoclay added is 60% of the total mass of eth...

Embodiment 2

[0034] Embodiment 2: This drag-reducing wear-resisting paint for pipeline comprises A component and B component, and wherein A component comprises the epoxy resin of 70% by mass percentage, the butyl propionate of 20% by mass percentage, the butyl propionate of 9.4% by mass % Layered-spherical nanofillers (the mass percentage of organic clay and silicon dioxide is 2:1, and its microscopic appearance is as attached figure 1 ,from figure 1 can clearly see the microstructure of layered clay and spherical silica), 0.3% by mass of polybutyl acrylate leveling agent and 0.3% by mass of polyether modified polysiloxane defoamer, B The component is polyamide-66 resin; component A and component B are mixed in a mass ratio of 4:1.

[0035] Wherein the lamellar-spherical nanofiller is prepared as follows: adding organic clay, ethanol with a mass percentage concentration of 98%, distilled water and ammoniacal liquor with a mass percentage concentration of 28% in the reactor, wherein the ...

Embodiment 3

[0040] Embodiment 3: This drag-reducing wear-resisting paint for pipeline comprises A component and B component, and wherein A component comprises the copolymer of epoxy resin and polyurethane of mass percentage 69.6% (the mass ratio of epoxy resin and polyurethane is 90 : 10), 25% by mass of butyl acetate, 5% by mass of layered-spherical nanofillers (the mass percentage of organoclay and silica is 4:1), 0.2% by mass of epoxy-based polyacrylate Leveling agent and polyester modified polysiloxane defoamer with a mass percentage of 0.2%, B component is polyamide-6 resin; A component and B component are mixed and used at a mass ratio of 5:1.

[0041] Wherein the lamellar-spherical nanofiller is prepared as follows: adding organic clay, ethanol with a mass percentage concentration of 98%, distilled water and ammoniacal liquor with a mass percentage concentration of 28% in the reactor, wherein the ratio of ethanol to distilled water is 70:30, The amount of ammonia water added is 8% ...

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Abstract

The invention discloses an anti-drag wear-resistant paint for pipelines and a preparation method of the anti-drag wear-resistant paint. The anti-drag wear-resistant paint for pipelines consists of a component A and a component B. The raw material ratios are as follows: the component A is composed of 60-70% of epoxy rein, 20-30% of diluent, 1-10% of self-prepared laminar-spherical nano filler, 0.1-0.3% of flattening agent and 0.1-0.3% of defoaming agent; and the component B is one of a polyamide resin, a modified resin and a modified polyamide; and the components A and B are utilized according to the mass ratio of (3-6) to 1. The paint has the advantages of being simple in raw materials, low in toxicity of the diluent, free from influence on the environment, and convenient to construct, and meanwhile the novel self-prepared laminar-spherical nano filler has remarkable effects of promoting the performances on the coating, such as wear resistance and drag reduction, so that the anti-drag wear-resistant paint for pipelines can be extensively utilized in the long distance pipelines including natural gas and petroleum long distance pipelines, etc. so as to achieve the aims of improving the pipeline run and reducing the feeding power.

Description

technical field [0001] The invention relates to a drag-reducing and wear-resistant coating for pipelines and a preparation method thereof, belonging to the field of chemical energy-saving and polymer coatings. Background technique [0002] The drag-reducing inner coating can greatly reduce the friction coefficient, increase the gas transmission volume, and reduce the gas transmission power. In addition, the drag-reducing inner coating can also reduce the number of pigging times, reduce corrosion, and reduce operating costs. With the increase of my country's exploration and development of oil and natural gas resources and joint development with foreign countries, my country's oil and natural gas industry will enter a period of accelerated development. In 2002, the West-to-East Natural Gas Pipeline Project (West Line 1) was built in China. In 2004, the new Shaanxi-Beijing Line 2 trunk line was designed. The inner wall of the pipeline was coated with a drag-reducing coating to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D175/04C09D151/08C09D7/12C09D5/00F16L57/06
Inventor 贾庆明陕绍云王亚明蒋丽红胡庭维
Owner KUNMING UNIV OF SCI & TECH
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