CN109536007A - A kind of preparation method and application of graphene anti-corrosion, scale-inhibiting coating - Google Patents
A kind of preparation method and application of graphene anti-corrosion, scale-inhibiting coating Download PDFInfo
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- CN109536007A CN109536007A CN201811372666.4A CN201811372666A CN109536007A CN 109536007 A CN109536007 A CN 109536007A CN 201811372666 A CN201811372666 A CN 201811372666A CN 109536007 A CN109536007 A CN 109536007A
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- inhibiting coating
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D181/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon only; Coating compositions based on polysulfones; Coating compositions based on derivatives of such polymers
- C09D181/06—Polysulfones; Polyethersulfones
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- Engineering & Computer Science (AREA)
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- Paints Or Removers (AREA)
Abstract
The present invention provides a kind of anti-corrosion, scale-inhibiting coating, it is 18-22 parts of polyethersulfone resin, 4-6 parts of ptfe micropowder be modified by the silicon substrate phenol of weight proportion, squamaceous graphene 3-5 parts, 68-72 parts of mixed solvent, 0.08-0.12 parts of 904S type dispersing agent, 066 0.03-0.06 parts of defoaming agent composition.The coating of the excellent properties such as the present invention provides a kind of with heavy antisepsis, wear-resisting and scale inhibition can be effectively solved oilfield pipe and basin in the poly- significant corrosion problems driven under environmental condition of ternary.Anti-corrosion, scale-inhibiting coating of the invention can also be used for the anticorrosion and good antiscale property of the metal structure in the medium harsh environment of the sewage containing pH value.
Description
One, technical field
The present invention relates to a kind of heavy antisepsis and scale inhibition coating, and in particular to drives when one kind is used for oil extraction in oil field using ternary is poly-
Complex liquid is as the modified anti-corrosion, scale-inhibiting coating of graphene and preparation method thereof under oil displacement agent operating condition.
Two, background technique
According to Daqing oil field planning requirement, oil field, which is widelyd popularize, carries out tertiary oil recovery, Ke Yiti using the poly- displacement system of ternary
High recovery rate 20% or so, but there are significant corrosion problems of the oil well pipe under this harsh environmental conditions.One is developed thus
Kind can reduce the efficient corrosion resisting of oil well pipe rate of corrosion under the poly- drive complex liquid system of ternary, scale inhibition coating is very important.
A kind of coating with excellent properties such as heavy antisepsis, wear-resisting scale inhibitions is developed, can effectively solve the problem that oil well pipe is compound in the poly- drive of ternary
Significant corrosion problems under the harsh environmental conditions of liquid.
Three, summary of the invention
1. the purpose of the present invention is to provide a kind of ternary for oil extraction in oil field it is poly- drive in reservoir oil displacing system for oil well pipe and
The defensive anti-corrosion, scale-inhibiting coating of storage tank, the coating have the excellent properties such as heavy antisepsis, wear-resisting scale inhibition.
2. anti-corrosion, scale-inhibiting coating of the invention is achieved in the following ways:
Coating by weight proportion modified 18-22 parts of polyethersulfone resin of silicon substrate phenol, 4-6 parts of ptfe micropowder, squama
3-5 parts of the graphene of sheet, 68-72 parts of mixed solvent, 0.08-0.12 parts of 904S type dispersing agent, 0.03-0.06 parts of groups of defoaming agent
At.
20-21 parts of polyethersulfone resin that 3. preferred coating of the present invention is modified by the silicon substrate phenol of weight proportion, polytetrafluoroethyl-ne
4.5-5.5 parts of alkene micro mist, squamaceous graphene 3-5 parts, 69-71 parts of mixed solvent, 0.09-0.11 parts of 904S type dispersing agent,
0.04-0.05 parts of defoaming agent compositions.
4. the preparation process that another aspect of the present invention is to provide anti-corrosion, scale-inhibiting coating: the following steps are included:
(1) preparation of mixed solvent:
According to the inventory of the formula of mixed solvent, by 12.56 parts of N-Methyl pyrrolidone, n,N-Dimethylformamide
2.37 parts, 1.5 parts of diacetone alcohol, 66.2 parts of cyclohexanone, 13.81 parts of butanone, 1.19 parts of isophorone, 2.37 parts of toluene successively plus
Enter into Flavouring jar, and stir evenly, for use.
(2) preparation of graphene anti-corrosion, scale-inhibiting coating:
According to the formula inventory of above-mentioned anti-corrosion, scale-inhibiting coating, first mixed solvent is added and is stirred into Flavouring jar, successively
The modified polyethersulfone resin of silicon substrate phenol and ptfe micropowder are added in Flavouring jar, makes it dissolve and stirs evenly, then
Squamaceous graphene is added, dispersing agent and defoaming agent etc. after so that it is uniformly dispersed under high velocity agitation, are pumped into horizontal sand mill
It is middle to be repeatedly sanded, after so that its fineness is reached 5 μm, it can filter and package.
5. the Special Resin for flaky graphite alkene and the novel organic-inorganic hybrid crosslinking being added.Film has impermeability
Ability is strong, adhesive force is good, corrosion resistance is splendid and has unique scale-inhibiting properties.Flake thickness is less than 80nm；Dirt deposition rate
For one of the seventy points of blank stainless steel；The 2000h of resistance to 30%NaOH, 30%H2SO42000h, resistance to ternary are poly- to drive complex liquid
2000h, film are intact.It is tight under the harsh environmental conditions of the poly- driving complex liquid of ternary that grand celebration oil well pipe can be efficiently solved
Heavy corrosion problem.
6. the advantages of anti-corrosion, scale-inhibiting coating products that the present invention is developed, is:
(1) graphene of small size is two-dimentional phosphorus lamellar structure, and specific surface area reaches 200m2/ gram or so, in film
In layered distribution, the corrosion-inhibiting coating of formation is very fine and close, has extremely strong screen effect, so its anti-corrosion, scale-inhibiting is had excellent performance.
(2) resin used in product of the present invention is the modified polyethersulfone resin of silicon substrate phenol, antiseptic property and heat-resisting quantity
Energy is excellent, especially acid and alkali-resistance, and water-fast and oil resistant performance is prominent, very high with the adhesive force of metal, adds polytetrafluoroethylene (PTFE)
The effect of resin makes coating have excellent antistick characteristic, so product of the present invention has ideal anti-corrosive properties and scale-preventing performance.
(3) product of the present invention is one-component coating, and when use does not need curing agent, so easy for construction.
7. coating surface of the present invention has ceramic performance, hardness height, anticorrosion, resistance to erosion, adhesion strength are strong；It solves
Extraordinary etching problem of the coating under the poly- harsh environmental conditions for driving complex liquid of ternary；The binding ability with resin is improved,
Dispersed distribution is uniform in film.
Four, specific embodiment
1. in order to make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment, right
The present invention is further described.It should be understood that these descriptions are merely illustrative, and it is not intended to limit the scope of the invention.
2. embodiment 1
(1) preparation of mixed solvent:
| Serial number | Material name | Specification | Charged material weight (Kg) |
| 1 | Pyrrolidones (NMP) | Technical pure | 12.56 |
| 2 | N,N dimethylformamide | Technical pure | 2.37 |
| 3 | Diacetone alcohol | Technical pure | 1.5 |
| 4 | Cyclohexanone | Technical pure | 66.2 |
| 5 | Butanone | Technical pure | 13.81 |
| 6 | Isophorone | Technical pure | 1.19 |
| 7 | Toluene | Technical pure | 2.37 |
| Subtotal | 100 |
According to the inventory of the formula of mixed solvent, by pyrrolidones, n,N dimethylformamide, diacetone alcohol, hexamethylene
Ketone, butanone, isophorone and toluene are successively added into Flavouring jar, and stir evenly, for use.
(2) preparation of graphene anti-corrosion, scale-inhibiting coating: formula is as follows:
First mixed solvent is added into Flavouring jar, under continuous stirring, successively that silicon substrate phenol is modified polyether sulfone tree
Rouge and ptfe micropowder, make it dissolve and stir evenly, and squamaceous graphene, 904S dispersing agent and defoaming is then added
Agent etc. after so that it is uniformly dispersed under high velocity agitation, is pumped into horizontal sand mill and is repeatedly sanded, its fineness is made to reach 5 μm
Afterwards, it can filter and package.
3. embodiment 2
According in embodiment 1 in step (1) technique and proportion prepare mixed solvent, then prepare graphene anti-corrosion, scale-inhibiting
The preparation of coating, material proportion are as follows:
First mixed solvent is added into Flavouring jar, under continuous stirring, successively that silicon substrate phenol is modified polyether sulfone tree
Rouge and ptfe micropowder, make it dissolve and stir evenly, and squamaceous graphene, dispersing agent and defoaming agent is then added
Deng, after so that it is uniformly dispersed under high velocity agitation, it is pumped into horizontal sand mill and is repeatedly sanded, after so that its fineness is reached 5 μm,
It can filter and package.
4. embodiment 3
According in embodiment 1 in step (1) technique and proportion prepare mixed solvent, then prepare graphene anti-corrosion, scale-inhibiting
Coating, material proportion are as follows:
First mixed solvent is added into Flavouring jar, under continuous stirring, successively that silicon substrate phenol is modified polyether sulfone tree
Rouge and ptfe micropowder, make it dissolve and stir evenly, and squamaceous graphene, aluminium powder suspending agent and defoaming is then added
Agent etc. after so that it is uniformly dispersed under high velocity agitation, is pumped into horizontal sand mill and is repeatedly sanded, and coating fineness is made to reach 5 μ
After m, it can filter and package.
5. embodiment 4
Graphene anti-corrosion, scale-inhibiting coating application technique
(1) coated article part surface pretreatment
Coated article part first cleans one time with thinner or uses the oil removing of 5%NaOH aqueous solution.Except it is complete oil after carry out sandblasting again
Or the derusting of grinder buffing method, it can paint after derusting；
(2) enamelling process
A. by treated, coated article part carries out spraying or dip-coating first pass anti-corrosion, scale-inhibiting coating, spraying or the resistance of dip-coating anti-corrosion
Object after dirty coating is put into 120 DEG C of baking ovens and carries out baking 20 minutes, then proceedes to heat up, at 260 DEG C of baking 20-30 points
Cool down after clock.
B. 80 DEG C are cooled to hereinafter, spraying again or second time anti-corrosion, scale-inhibiting coating of dip-coating, second time anti-corrosion, scale-inhibiting coating spray
It after painting or dip-coating, is put into 120 DEG C of baking ovens and carries out baking 20 minutes, then proceed to 260 DEG C of heating, at 260 DEG C of baking 20-30 points
Cool down after clock, factory can be packed.
6. the coating of embodiment 1-3 preparation is constructed according to the construction technology of embodiment 4, according to 3186 " color of GB/T
Paint, varnish and colored paint and varnish are sampled with raw material ", GB/T 9274-1988 " measurement of paint and varnish resistant to liquid medium " into
Row detection and measurement, the result is as follows:
| Inspection project | Inspection result |
| The state of original paint in a reservoir | It easily stirs evenly, no obvious sediment |
| Water resistance | 4000h paint film is unchanged |
| Resistance to salt water (3%NaCl) | 2500h paint film is unchanged |
| Acid resistance (30%H2SO4) | 2000h paint film is unchanged |
| Alkali resistance (30%NaOH) | 2000h paint film is unchanged |
| Salt fog resistance | 2000h paint film is unchanged |
| Resistance to crude oil | 3000h paint film is unchanged |
| Resistance to ternary is poly- to drive complex liquid | 3000h paint film is unchanged |
Test result shows that the present invention prepares coating with good stability, has very strong acid-alkali-corrosive-resisting performance,
Solve extraordinary etching problem of the coating under the poly- harsh environmental conditions for driving complex liquid of ternary.
7. although embodiments of the present invention are described in detail, it should be understood that, without departing from the present invention
Spirit and scope in the case where, embodiments of the present invention can be made with various changes, replacement and change.
Claims (5)
1. a kind of graphene anti-corrosion, scale-inhibiting coating, it is characterised in that: the coating polyether sulfone tree modified by the silicon substrate phenol of weight proportion
18-22 parts of rouge, 4-6 parts of ptfe micropowder, squamaceous graphene 3-5 parts, 68-72 parts of mixed solvent, dispersing agent 0.08-
0.12 part, 0.03-0.06 parts of defoaming agent compositions.
2. a kind of graphene anti-corrosion, scale-inhibiting coating, it is characterised in that: the coating polyether sulfone tree modified by the silicon substrate phenol of weight proportion
20-21 parts of rouge, 4.5-5.5 parts of ptfe micropowder, squamaceous graphene 3-5 parts, 69-71 parts of mixed solvent, dispersing agent
0.09-0.11 parts, 0.04-0.05 parts of defoaming agent compositions.
3. anti-corrosion, scale-inhibiting coating according to claim 1, it is characterised in that: mixed solvent by weight proportion N- methyl pyrrole
12.56 parts of pyrrolidone, 2.37 parts of n,N-Dimethylformamide, 1.5 parts of diacetone alcohol, 66.2 parts of cyclohexanone, 13.81 parts of butanone,
1.19 parts of isophorone, 2.37 parts of toluene compositions.
4. a kind of method for preparing anti-corrosion, scale-inhibiting coating, it is characterised in that the following steps are included:
(1) preparation of mixed solvent
According to the inventory of the formula of mixed solvent in claim 4, by pyrrolidones, n,N dimethylformamide, diacetone
Alcohol, cyclohexanone, butanone, isophorone and toluene are successively added into Flavouring jar, and stir evenly, for use；
(2) preparation of graphene anti-corrosion, scale-inhibiting coating:
According to the formula inventory of graphene anti-corrosion, scale-inhibiting coating in claims 1 or 2, first mixed solvent is added to Flavouring jar
Middle stirring, successively that silicon substrate phenol is modified polyethersulfone resin and ptfe micropowder, makes it dissolve and stirs evenly, then plus
Enter squamaceous graphene, dispersing agent and defoaming agent etc. after so that it is uniformly dispersed under high velocity agitation, are pumped into horizontal sand mill
It is repeatedly sanded, after so that its fineness is reached 5 μm, can be filtered and packaged.
5. a kind of prepare anti-corrosion, scale-inhibiting coating, it is characterised in that for the anticorrosion in severe corrosive environment.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372666.4A CN109536007A (en) | 2018-11-12 | 2018-11-12 | A kind of preparation method and application of graphene anti-corrosion, scale-inhibiting coating |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811372666.4A CN109536007A (en) | 2018-11-12 | 2018-11-12 | A kind of preparation method and application of graphene anti-corrosion, scale-inhibiting coating |
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| CN109536007A true CN109536007A (en) | 2019-03-29 |
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| CN201811372666.4A Pending CN109536007A (en) | 2018-11-12 | 2018-11-12 | A kind of preparation method and application of graphene anti-corrosion, scale-inhibiting coating |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214897A (en) * | 2013-03-19 | 2013-07-24 | 宁波墨西新材料有限公司 | Graphene nonstick paint |
| CN104087155A (en) * | 2014-07-26 | 2014-10-08 | 哈尔滨市长河特种涂料厂有限责任公司 | Anti-corrosion anti-scaling coating, as well as preparation method and applications thereof |
| CN106189719A (en) * | 2016-08-31 | 2016-12-07 | 湖南航天新材料技术研究院有限公司 | A kind of Graphene anticorrosive paint and preparation method thereof |
| CN108102539A (en) * | 2018-01-09 | 2018-06-01 | 江阴振宏重型锻造有限公司 | Graphene anticorrosive paint and preparation method thereof and the method for coating wind power principal axis |
| CN108276877A (en) * | 2018-01-05 | 2018-07-13 | 广东纳路纳米科技有限公司 | A kind of composite anti-scale coating and its application containing modified white graphite alkene |
-
2018
- 2018-11-12 CN CN201811372666.4A patent/CN109536007A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103214897A (en) * | 2013-03-19 | 2013-07-24 | 宁波墨西新材料有限公司 | Graphene nonstick paint |
| CN104087155A (en) * | 2014-07-26 | 2014-10-08 | 哈尔滨市长河特种涂料厂有限责任公司 | Anti-corrosion anti-scaling coating, as well as preparation method and applications thereof |
| CN106189719A (en) * | 2016-08-31 | 2016-12-07 | 湖南航天新材料技术研究院有限公司 | A kind of Graphene anticorrosive paint and preparation method thereof |
| CN108276877A (en) * | 2018-01-05 | 2018-07-13 | 广东纳路纳米科技有限公司 | A kind of composite anti-scale coating and its application containing modified white graphite alkene |
| CN108102539A (en) * | 2018-01-09 | 2018-06-01 | 江阴振宏重型锻造有限公司 | Graphene anticorrosive paint and preparation method thereof and the method for coating wind power principal axis |
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Application publication date: 20190329 |