CN110899069A - Corrosion-resistant coating applied to surface of underground oil storage tank - Google Patents
Corrosion-resistant coating applied to surface of underground oil storage tank Download PDFInfo
- Publication number
- CN110899069A CN110899069A CN201911011710.3A CN201911011710A CN110899069A CN 110899069 A CN110899069 A CN 110899069A CN 201911011710 A CN201911011710 A CN 201911011710A CN 110899069 A CN110899069 A CN 110899069A
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- Prior art keywords
- coating
- storage tank
- corrosion
- oil storage
- underground
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 116
- 239000011248 coating agent Substances 0.000 title claims abstract description 115
- 230000007797 corrosion Effects 0.000 title claims abstract description 27
- 238000005260 corrosion Methods 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000002105 nanoparticle Substances 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 14
- 238000001020 plasma etching Methods 0.000 claims abstract description 11
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical group CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 claims description 30
- DOIRQSBPFJWKBE-UHFFFAOYSA-N dibutyl phthalate Chemical group CCCCOC(=O)C1=CC=CC=C1C(=O)OCCCC DOIRQSBPFJWKBE-UHFFFAOYSA-N 0.000 claims description 20
- 239000003822 epoxy resin Substances 0.000 claims description 20
- 229920000647 polyepoxide Polymers 0.000 claims description 20
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 239000002904 solvent Substances 0.000 claims description 15
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 12
- 229910021536 Zeolite Inorganic materials 0.000 claims description 10
- 239000003085 diluting agent Substances 0.000 claims description 10
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000003960 organic solvent Substances 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 239000010457 zeolite Substances 0.000 claims description 10
- VILCJCGEZXAXTO-UHFFFAOYSA-N 2,2,2-tetramine Chemical group NCCNCCNCCN VILCJCGEZXAXTO-UHFFFAOYSA-N 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 5
- GJRCAPGAPUNIHP-UHFFFAOYSA-N CO[Zn] Chemical compound CO[Zn] GJRCAPGAPUNIHP-UHFFFAOYSA-N 0.000 claims description 4
- 229940114081 cinnamate Drugs 0.000 claims description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 4
- 239000002987 primer (paints) Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 abstract description 3
- 230000001070 adhesive effect Effects 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 23
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 239000007789 gas Substances 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 5
- 229960001124 trientine Drugs 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/14—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by electrical means
- B05D3/141—Plasma treatment
- B05D3/145—After-treatment
- B05D3/148—After-treatment affecting the surface properties of the coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/24—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials for applying particular liquids or other fluent materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/58—No clear coat specified
-
- 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
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
-
- 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
- C09D5/10—Anti-corrosive paints containing metal dust
- C09D5/106—Anti-corrosive paints containing metal dust containing Zn
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2451/00—Type of carrier, type of coating (Multilayers)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2504/00—Epoxy polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2601/00—Inorganic fillers
- B05D2601/20—Inorganic fillers used for non-pigmentation effect
- B05D2601/28—Metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D2602/00—Organic fillers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/08—Metals
- C08K2003/0893—Zinc
Abstract
The invention discloses a corrosion-resistant coating applied to the surface of an underground oil storage tank, which relates to the technical field of oil storage tanks, and is characterized in that a bottom coating material is coated on the surface of the underground oil storage tank to form a bottom coating, a nanoparticle layer is deposited on the outer surface of a first coating, plasma etching treatment is carried out on the surface of the nanoparticle layer, then a surface coating material is coated to form a surface coating, and drying treatment is carried out to obtain the corrosion-resistant coating; the coating which is prepared by the invention and applied to the surface of the underground oil storage tank has excellent corrosion resistance and adhesive force.
Description
Technical Field
The invention belongs to the technical field of oil storage tanks, and particularly relates to a corrosion-resistant coating applied to the surface of an underground oil storage tank.
Background
Under the big background of energy saving and emission reduction, natural gas is about to become the leading gas source of city gas in China, along with the popularization of city natural gas supply, the application field of natural gas is gradually increased, an oil preparation natural gas supply device is widely used in the field, because an oil storage tank in the oil preparation natural gas supply device is usually buried underground for saving space, however, the surface of the oil storage tank is corroded due to the complex underground environment, and the surface of the oil storage tank needs to be protected for protecting the oil storage tank and reducing the corrosion.
Disclosure of Invention
The invention aims to solve the existing problems and provides a corrosion-resistant coating applied to the surface of an underground oil storage tank.
The invention is realized by the following technical scheme:
a corrosion-resistant coating applied to the surface of an underground oil storage tank is characterized in that a bottom coating material is coated on the surface of the underground oil storage tank to form a bottom coating, the thickness of a dry film of the bottom coating is less than 18 mu m, a nano particle layer is deposited on the outer surface of a first coating, the nano particle layer is made of nano zeolite powder, the mass of the nano zeolite powder layer accounts for 5-5.5% of the mass of the dried bottom coating, plasma etching treatment is performed on the surface of the nano particle layer, and CF (CF) is adopted for the plasma etching treatment4Treating the plasma, coating a surface coating material to form a surface coating, and drying, wherein the drying is to place the surface coating material at 50 ℃ for 4 hours to obtain the coating; the surface coating is additionally added with 4-hydroxy-3-methoxy zinc cinnamate on the basis of the bottom coating, and the addition amount of the 4-hydroxy-3-methoxy zinc cinnamate is 2.5-3% of the mass of the epoxy resin in the bottom coating;
CF4the plasma parameters were:
treating gas: CF (compact flash)4；
Flow rate: 68 ml/min;
power: 12W;
pressure: 5 Pa;
voltage: 220V (zero) is adopted.
The bottom coating material is epoxy resin, superfine zinc powder, a solvent and a curing agent, the mass ratio of the epoxy resin to the zinc powder to the solvent to the curing agent is 68-70:5-7:40-42:8-10, the epoxy equivalent of the epoxy resin is 196, the solvent is obtained by mixing an organic solvent and a diluent, the organic solvent is n-butyl alcohol, the diluent is dibutyl phthalate, the mixing mass ratio of the n-butyl alcohol to dibutyl phthalate is 3:1, and the curing agent is triethylene tetramine.
Has the advantages that: the invention is applied to the surface of the underground oil storage tank and is corrosion resistantThe coating, have excellent corrosion resistance and adhesive force, through forming one deck bottom coating to the oil storage tank surface earlier, lay firm ground that adheres to, the follow-up top coating's of being convenient for that can be better adhere to, very big reinforcing the adhesive force of coating, simultaneously, the deposit has the nano particle layer between bottom coating and top coating, and carried out CF to the nano particle layer4The plasma treatment can greatly enhance the activity of the surface groups of the nano particle layer, so that the nano particle layer can be used as a stable connecting framework between the bottom layer coating and the surface layer coating, so that the bottom layer coating and the surface layer coating form an integral corrosion-resistant coating more stably, the integral stability of the coating is enhanced, the service life of the coating is prolonged, by adding a certain amount of zinc powder into the bottom layer coating and the surface layer coating, the zinc powder has the function of cathode protection, when the coating is underground, the coating has an excellent antirust effect, and 4-hydroxy 3-methoxy zinc cinnamate is additionally added into the surface coating, so that the compatibility among components of the surface coating can be further enhanced, the acting force between a polymer chain in the coating and other components is enhanced, and the damage effect of the surface coating on resisting external corrosion factors can be greatly improved.
Detailed Description
Example 1
A corrosion-resistant coating applied to the surface of an underground oil storage tank is characterized in that a bottom coating material is coated on the surface of the underground oil storage tank to form a bottom coating, the thickness of a dry film of the bottom coating is 15 micrometers, a nano particle layer is deposited on the outer surface of a first coating, the nano particle layer is made of nano zeolite powder, the mass of the nano zeolite powder layer accounts for 5% of the mass of the dried bottom coating, plasma etching treatment is performed on the surface of the nano particle layer, and CF (CF) is adopted for the plasma etching treatment4Treating the plasma, coating a surface coating material to form a surface coating, and drying, wherein the drying is to place the surface coating material at 50 ℃ for 4 hours to obtain the coating; the surface coating is additionally added with 4-hydroxy-3-methoxy zinc cinnamate on the basis of the bottom coating, and the addition amount of the 4-hydroxy-3-methoxy zinc cinnamate is 2.5% of the mass of the epoxy resin in the bottom coating;
the CF4 plasma parameters were:
treating gas: CF (compact flash)4；
Flow rate: 68 ml/min;
power: 12W;
pressure: 5 Pa;
voltage: 220V (zero) is adopted.
The bottom coating material is epoxy resin, superfine zinc powder, a solvent and a curing agent, the mass ratio of the epoxy resin to the zinc powder to the solvent to the curing agent is 68:5:40:8, the epoxy equivalent of the epoxy resin is 196, the solvent is obtained by mixing an organic solvent and a diluent, the organic solvent is n-butyl alcohol, the diluent is dibutyl phthalate, the mixing mass ratio of the n-butyl alcohol to dibutyl phthalate is 3:1, and the curing agent is triethylene tetramine.
Example 2
A corrosion-resistant coating applied to the surface of an underground oil storage tank is characterized in that a bottom coating material is coated on the surface of the underground oil storage tank to form a bottom coating, the thickness of a dry film of the bottom coating is 16 mu m, a nano particle layer is deposited on the outer surface of a first coating, the nano particle layer is made of nano zeolite powder, the mass of the nano zeolite powder layer accounts for 5.5% of the mass of the dried bottom coating, plasma etching treatment is performed on the surface of the nano particle layer, and CF (CF) is adopted for the plasma etching treatment4Treating the plasma, coating a surface coating material to form a surface coating, and drying, wherein the drying is to place the surface coating material at 50 ℃ for 4 hours to obtain the coating; the surface coating is additionally added with 4 hydroxy 3 methoxy zinc cinnamate on the basis of the bottom coating, and the addition amount of the 4 hydroxy 3 methoxy zinc cinnamate is 3% of the mass of the epoxy resin in the bottom coating;
the CF4 plasma parameters were:
treating gas: CF (compact flash)4；
Flow rate: 68 ml/min;
power: 12W;
pressure: 5 Pa;
voltage: 220V (zero) is adopted.
The bottom coating material is epoxy resin, superfine zinc powder, a solvent and a curing agent, the mass ratio of the epoxy resin to the zinc powder to the solvent to the curing agent is 70: 7: 42: 10, the epoxy equivalent of the epoxy resin is 196, the solvent is obtained by mixing an organic solvent and a diluent, the organic solvent is n-butyl alcohol, the diluent is dibutyl phthalate, the mixing mass ratio of the n-butyl alcohol to dibutyl phthalate is 3:1, and the curing agent is triethylene tetramine.
Example 3
A corrosion-resistant coating applied to the surface of an underground oil storage tank is characterized in that a bottom coating material is coated on the surface of the underground oil storage tank to form a bottom coating, the thickness of a dry film of the bottom coating is 17 mu m, a nano particle layer is deposited on the outer surface of a first coating, the nano particle layer is made of nano zeolite powder, the mass of the nano zeolite powder layer accounts for 5.2% of the mass of the dried bottom coating, plasma etching treatment is performed on the surface of the nano particle layer, and CF (CF) is adopted for the plasma etching treatment4Treating the plasma, coating a surface coating material to form a surface coating, and drying, wherein the drying is to place the surface coating material at 50 ℃ for 4 hours to obtain the coating; the surface coating is additionally added with 4-hydroxy-3-methoxy zinc cinnamate on the basis of the bottom coating, and the addition amount of the 4-hydroxy-3-methoxy zinc cinnamate is 2.8 percent of the mass of the epoxy resin in the bottom coating;
the CF4 plasma parameters were:
treating gas: CF (compact flash)4；
Flow rate: 68 ml/min;
power: 12W;
pressure: 5 Pa;
voltage: 220V (zero) is adopted.
The bottom coating material is epoxy resin, superfine zinc powder, a solvent and a curing agent, the mass ratio of the epoxy resin to the zinc powder to the solvent to the curing agent is 69:6:41:9, the epoxy equivalent of the epoxy resin is 196, the solvent is obtained by mixing an organic solvent and a diluent, the organic solvent is n-butyl alcohol, the diluent is dibutyl phthalate, the mixing mass ratio of the n-butyl alcohol to dibutyl phthalate is 3:1, and the curing agent is triethylene tetramine.
The example coatings were tested for properties (ASTM B1171000 h);
TABLE 1
| Corrosion test results in mm of scribe creep | |
| Example 1 | 5.32 |
| Example 2 | 10.67 |
| Example 3 | 8.58 |
As can be seen from table 1, the coating formed by the present invention has excellent corrosion resistance.
Example product construction description:
the using method comprises the following steps: air spraying;
nozzle caliber: 0.45 mm;
spraying pressure: 12 MPa;
drying time: the substrate temperature is 23 ℃, the surface drying time is 40min, and the actual drying time is 1 hour.
Claims (10)
1. The utility model provides a be applied to anticorrosive coating in underground oil storage tank surface which characterized in that, to the surface coating bottom coating material of underground oil storage tank in order to form the bottom coating, deposit the nano-particle layer on the surface of first coating, carry out plasma etching to the nano-particle layer surface and handle, carry out the top coating material again and in order to form top coating, through drying process, obtain.
2. The corrosion-resistant coating applied to the surface of the underground oil storage tank as claimed in claim 1, wherein the bottom coating material is epoxy resin, superfine zinc powder, a solvent and a curing agent, and the mass ratio of the epoxy resin, the zinc powder, the solvent and the curing agent is 68-70:5-7:40-42: 8-10.
3. The corrosion-resistant coating applied to the surface of an underground storage tank of claim 2, wherein the epoxy resin has an epoxy equivalent weight of 196.
4. The coating applied to the surface of an underground oil storage tank for resisting corrosion according to claim 1, wherein the solvent is obtained by mixing an organic solvent and a diluent, the organic solvent is n-butyl alcohol, the diluent is dibutyl phthalate, and the mixing mass ratio of the n-butyl alcohol to the dibutyl phthalate is 3: 1.
5. The corrosion-resistant coating applied to the surface of an underground storage tank of claim 1, wherein the curing agent is triethylenetetramine.
6. The corrosion-resistant coating applied to the surface of an underground storage tank of claim 1, wherein the dry film thickness of the primer coating is less than 18 μm.
7. The corrosion-resistant coating applied to the surface of the underground oil storage tank as claimed in claim 1, wherein the nano particle layer is made of nano zeolite powder, and the mass of the nano zeolite powder layer accounts for 5-5.5% of the dried mass of the bottom coating.
8. The corrosion-resistant coating applied to the surface of an underground oil storage tank as claimed in claim 1, wherein the plasma etching treatment adopts CF4Plasma processAnd (6) processing.
9. The corrosion-resistant coating applied to the surface of the underground oil storage tank as claimed in claim 1 or 2, wherein the surface coating is a bottom coating, and 4 hydroxy 3 methoxy zinc cinnamate is additionally added, and the addition amount of the 4 hydroxy 3 methoxy zinc cinnamate is 2.5-3% of the mass of the epoxy resin in the bottom coating.
10. The corrosion-resistant coating applied to the surface of an underground storage tank of claim 1, wherein the drying is performed at 50 ℃ for 4 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011710.3A CN110899069A (en) | 2019-10-23 | 2019-10-23 | Corrosion-resistant coating applied to surface of underground oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911011710.3A CN110899069A (en) | 2019-10-23 | 2019-10-23 | Corrosion-resistant coating applied to surface of underground oil storage tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110899069A true CN110899069A (en) | 2020-03-24 |
Family
ID=69814957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911011710.3A Pending CN110899069A (en) | 2019-10-23 | 2019-10-23 | Corrosion-resistant coating applied to surface of underground oil storage tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110899069A (en) |
-
2019
- 2019-10-23 CN CN201911011710.3A patent/CN110899069A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 周潘兵等: "《光伏技术与应用概论》", 31 August 2011, 中央广播电视大学出版社 * |
| 张福学等: "《无驱动结构微机械陀螺及其应用》", 31 December 2013, 国防工业出版社 * |
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Application publication date: 20200324 |