High temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating for oil pipe

A graphene-modified, high-temperature-resistant technology, applied in anti-corrosion coatings, epoxy resin coatings, coatings, etc., can solve the problems of high coating thickness and compactness requirements, increased cost, etc.

Inactive Publication Date: 2019-03-26
天津宝坻紫荆创新研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the coating, under the premise of ensuring the corrosion resistance effect, the thickness and compactness of the coating are required to be high, and correspondingly more precious metal elements such as Ni and W need to be added, resulting in an increase in its cost

Method used

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  • High temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating for oil pipe
  • High temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating for oil pipe
  • High temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating for oil pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] The raw material composition of anti-corrosion coating primer is as follows:

[0050] Primer A component: novolak epoxy resin (DEH431) 24%, bisphenol A epoxy resin (E20) 11%, xylene 10%, n-butanol 6%, cyclohexanone 1%, 1,4- Butanediol diglycidyl ether 1%, mica iron oxide 8%, talcum powder 8%, mica 15%, zinc phosphate 5%, wax powder 2%, iron oxide red powder 8%, additives 1%;

[0051] Among them, additives include wetting and dispersing agent (BYK163) 0.3%, silane coupling agent (560) 0.3%, adhesion additive (BYK4510) 0.2%, defoamer (BYK066) 0.1%, leveling agent (BYK310) 0.1% %;

[0052] Primer B component: epoxy curing agent, accounting for 8% of the mass of primer A component, specifically, aromatic amine curing agent (4702): modified alicyclic amine curing agent (2280) = 1:1.

[0053] Anti-corrosion paint topcoat raw materials are composed of:

[0054]Topcoat A component: novolac epoxy resin (DEH431) 40%, xylene 10%, n-butanol 6%, cyclohexanone 3%, 1,4-butanediol d...

Embodiment 2

[0058] The raw material composition of anti-corrosion coating primer is as follows:

[0059] Primer A component: novolak epoxy resin (DEH431) 24%, bisphenol A epoxy resin (E20) 11%, xylene 10%, n-butanol 6%, cyclohexanone 1%, 1,4- Butanediol diglycidyl ether 1%, mica iron oxide 8%, talcum powder 8%, mica 15%, zinc phosphate 5%, wax powder 2%, iron oxide red powder 8%, additives 1%;

[0060] Among them, additives include wetting and dispersing agent (BYK163) 0.3%, silane coupling agent (560) 0.3%, adhesion additive (BYK4510) 0.2%, defoamer (BYK066) 0.1%, leveling agent (BYK310) 0.1% %.

[0061] Primer B component: epoxy curing agent, accounting for 8% of the mass of primer A component, specifically, aromatic amine curing agent (4702): modified alicyclic amine curing agent (2280) = 1:1.

[0062] Anti-corrosion paint topcoat raw materials are composed of:

[0063] Topcoat A component: novolac epoxy resin (DEH431) 40%, xylene 10%, n-butanol 6%, cyclohexanone 3%, 1,4-butanediol ...

Embodiment 3

[0069] The raw material composition of anti-corrosion coating primer is as follows:

[0070] Primer A component: novolac epoxy resin (DEH431) 24%, bisphenol A epoxy resin (E20) 11%, xylene 10%, n-butanol 6%, cyclohexanone 1%, 1,4- Butanediol diglycidyl ether 1%, mica iron oxide 8%, talc powder 8%, mica 15%, zinc phosphate 5%, wax powder 1.5%, iron oxide red powder 8%, additives 1.5%;

[0071] Among them, additives include wetting and dispersing agent (BYK163) 0.3%, silane coupling agent (560) 0.3%, adhesion additive (BYK4510) 0.3%, defoamer (BYK066) 0.3%, leveling agent (BYK310) 0.3% %.

[0072] Primer B component: epoxy curing agent, accounting for 8% of the mass of primer A component, specifically, aromatic amine curing agent (4702): modified alicyclic amine curing agent (2280) = 1:1.

[0073] Anti-corrosion paint topcoat raw materials are composed of:

[0074] Topcoat A component: novolac epoxy resin (DEH431) 40%, xylene 10%, n-butanol 6%, cyclohexanone 3%, 1,4-butanedio...

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PUM

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Abstract

The invention relates to a high temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating for an oil pipe. The high temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating consists of a primer and a topcoat, wherein the primer consists of a component A and a component B; the topcoat consists of a component A and a component B; the component A of the topcoat is prepared from the following components in percentage by mass: 20 to 60% of epoxy resin, 10 to 20% of organic solvent, 0 to 1.5% of graphene, 2 to 10% of pigment, 10 to 30% of filler, and 0 to 2% of adjuvant, and the sum of mass percentages of the components of the component A of the topcoat is 100%; the component B of the topcoat is an epoxy curing agent; the mass of the component B of the topcoat accounts for 8 to12% of the total mass of the component A of the topcoat. The high temperature and high pressure-resistant type graphene-modified phenolic heavy-duty anti-corrosive coating has the excellent properties of strong adhesion force, strong abrasion-resistant property, chemical medium-resistant property, high temperature and high pressure-resistant property, and the like.

Description

technical field [0001] The invention relates to the technical field of anti-corrosion paint preparation, in particular to a high-temperature and high-pressure-resistant graphene-modified bottom-surface-integrated heavy-duty anti-corrosion paint and a preparation method thereof. Background technique [0002] There are about 400,000 oil and gas wells in my country, about 30,000 new oil and gas wells are drilled every year, and more than 3.5 million tons of various pipes are used. Among them, taking water injection pipes as an example, the annual demand reaches 50 million meters, and it is estimated that 5,000 tons of heavy-duty anti-corrosion coatings are required. Oil and gas field enterprises have a strong production demand for economical water injection pipe surface modification technology that can improve the service life of tubing and increase the safety of oil and gas well development. The harsh environment used by water injection well pipes is the main cause of damage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/04C09D7/61C09D5/08C09D5/00B05D1/02B05D3/02B05D7/00
CPCB05D1/02B05D3/0254B05D7/54B05D7/544B05D7/546C08K2003/2272C08K2003/3045C08K2003/328C09D5/002C09D5/08C09D7/61C09D163/04C08L63/00C08K3/34C08K3/32C08K3/22C08K3/042C08K3/04C08K3/30C08K3/36
Inventor 易汉平白路阳冯春朱丽娟高古辉李桦
Owner 天津宝坻紫荆创新研究院
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