CN111763976A - Preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy - Google Patents
Preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy Download PDFInfo
- Publication number
- CN111763976A CN111763976A CN201910257332.0A CN201910257332A CN111763976A CN 111763976 A CN111763976 A CN 111763976A CN 201910257332 A CN201910257332 A CN 201910257332A CN 111763976 A CN111763976 A CN 111763976A
- Authority
- CN
- China
- Prior art keywords
- copper
- nickel alloy
- hydrophobic
- graphene
- super
- 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.)
- Withdrawn
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D9/00—Electrolytic coating other than with metals
- C25D9/04—Electrolytic coating other than with metals with inorganic materials
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F15/00—Other methods of preventing corrosion or incrustation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/34—Pretreatment of metallic surfaces to be electroplated
Abstract
The invention belongs to the technical field of functional materials, and relates to a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy. The invention provides a preparation method of a graphene-based super-hydrophobic B30 copper-nickel alloy, and particularly relates to a preparation method of a super-hydrophobic structure by adopting an electrodeposition method. Has the following advantages: on one hand, a B30 copper-nickel alloy surface rough structure is constructed by etching the B30 copper-nickel alloy in a linolenic acid medium, on the other hand, a chelate is formed by benzotriazole and copper, and simultaneously, the lamellar blocking function of the copper-nickel alloy is fully exerted by strong adsorption of graphene oxide on the copper surface, so that the super-hydrophobic B30 copper-nickel alloy has excellent corrosion resistance, the corrosion inhibition efficiency reaches more than 97%, and the super-hydrophobic B30 copper-nickel alloy has a wide industrial application prospect.
Description
Technical Field
The invention belongs to the technical field of functional materials, and particularly relates to a preparation method of a graphene-based super-hydrophobic B30 copper-nickel alloy.
Background
With the wider application of the copper-nickel alloy B30 in national economy, particularly as an important component of a generator set-a condenser in China and other countries, most of the tubes of the copper-nickel alloy B30 are made of copper-nickel alloy, but are influenced by various factors, particularly Cl exists-When the copper-nickel alloy pipe is corroded, the copper-nickel alloy pipe of the condenser is corroded, and the corrosion becomes a prominent problem whether the power plant can run safely and economically.
In recent years, inspired by the lotus effect, the super-hydrophobic surface with a contact angle of more than 150 degrees with a water drop has the strong hydrophobic characteristic that water molecules and corrosive ions are difficult to permeate into the super-hydrophobic surface, so that the corrosion resistance of the metal material is obviously improved.
At present, a super-hydrophobic structure is constructed on the surface of a metal material by the etching action of stearic acid on the metal material, but the super-hydrophobic structure has short service life and is easy to damage after being soaked in a corrosive medium for a long time. The preparation method of the super-hydrophobic surface reported at present either needs harsh equipment or has too long preparation time. Therefore, the preparation method for developing the simple, efficient and long-life super-hydrophobic B30 copper-nickel alloy has important economic and social significance.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a preparation method of a graphene-based super-hydrophobic B30 copper-nickel alloy, which is rapid and long in service life, and the super-hydrophobic structure constructed by the method is stable, and is particularly suitable for protection of the B30 copper-nickel alloy in seawater corrosion medium.
The invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, which comprises the following steps:
(1) b30 copper-nickel alloy pretreatment:
b30 copper-nickel alloy is first polished with 60, 120, 320, 600 and 1200 mesh sand paper to eliminate surface impurity and oxide, then ultrasonically cleaned with absolute alcohol and acetone for 10 min to eliminate organic matter, and finally N-washed2Drying for later use;
(2) preparing a super-hydrophobic structure by electrodeposition:
the electrolyte formula consists of graphene oxide, linolenic acid, benzotriazole and absolute ethyl alcohol, and the mass fractions of the components are respectively as follows: 10-20% of graphene oxide, 20-30% of linolenic acid, 5-10% of benzotriazole and 40-70% of absolute ethyl alcohol, wherein the sum of the percentage contents of all the components is 100%. The preparation method of the super-hydrophobic B30 copper-nickel alloy provided by the invention has the advantages that the constant potential is 2-5V, the electrodeposition time is 5-15 h, and the temperature is 30-50 ℃. On one hand, the invention utilizes linolenic acid to etch B30 copper-nickel alloy; on the other hand, a chelate is formed by benzotriazole and copper, and meanwhile, a film with high barrier property is formed on the surface of the B30 copper-nickel alloy by the strong adsorption force of graphene oxide, so that a super-hydrophobic surface is constructed, and the super-hydrophobic B30 copper-nickel alloy has excellent corrosion resistance. The preparation process is simple, the reproducibility is good, expensive equipment is not needed, and the method has wide industrial application prospect.
The invention has the beneficial effects that:
1. the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, which can obviously improve the corrosion resistance of the alloy in seawater corrosive medium;
2. the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, wherein linolenic acid and graphene oxide are adopted as electrolyte, and the obtained film layer has better super-hydrophobic property;
3. the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, which has lower applied voltage and can effectively reduce energy consumption;
4. the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, which is short in electrodeposition time, and can construct a super-hydrophobic surface only within 5 hours at a voltage of 5V;
5. the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, and the super-hydrophobic film has longer service life;
6. the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, which has a super-hydrophobic structure, excellent corrosion resistance and excellent protection effect on B30 copper-nickel alloy in seawater corrosion medium;
7. the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, wherein the preparation method is simple, the energy consumption is low, the electrolyte formula is non-toxic and pollution-free, and the large-scale industrial application can be carried out.
Drawings
FIG. 1: contact angle of untreated B30 cupronickel;
FIG. 2: contact angle of graphene-based super-hydrophobic B30 copper-nickel alloy;
FIG. 3: the electrochemical impedance result of the untreated B30 copper-nickel alloy in a simulated seawater corrosion medium (the detection result of the sea water in the east China sea is that distilled water +2.5 percent NaCl +0.2 percent CaCl2+0.6 percent MgCl2.6H20+0.5 percent Na2SO4+0.15 percent NaHC03+0.08 percent KCl);
FIG. 4: the electrochemical impedance result of the graphene-based super-hydrophobic B30 copper-nickel alloy in a simulated seawater corrosion medium (the detection result of the sea water in the east China sea is that distilled water + 2.5% NaCl + 0.2% CaCl2+ 0.6% MgCl2.6H20+ 0.5% Na2SO4+ 0.15% NaHC03+ 0.08% KCl) is obtained.
Detailed Description
The invention is further described below with reference to the figures and examples. While the invention will be described in conjunction with the preferred embodiments, it will be understood that they are not intended to limit the invention to the embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the scope of the invention as defined by the appended claims.
Example 1:
the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, which comprises the following steps:
(1) b30 copper-nickel alloy pretreatment:
b30 copper-nickel alloy is first polished with 60, 120, 320, 600 and 1200 mesh sand paper to eliminate surface impurity and oxide, then ultrasonically cleaned with absolute alcohol and acetone for 10 min to eliminate organic matter, and finally N-washed2Drying for later use;
(2) preparing a super-hydrophobic structure by electrodeposition:
the electrolyte formula consists of graphene oxide, linolenic acid, benzotriazole and absolute ethyl alcohol, and the mass fractions of the components are respectively as follows: 10% of graphene oxide, 20% of linolenic acid, 5% of benzotriazole and 65% of absolute ethyl alcohol. The preparation method of the super-hydrophobic B30 copper-nickel alloy provided by the invention has the advantages that the constant potential is 5V, the electrodeposition time is 5 h, and the temperature is 30 ℃.
The contact angle of the prepared graphene-based super-hydrophobic B30 copper-nickel alloy is measured by a contact angle tester, and compared with that of a B30 copper-nickel alloy which is not subjected to super-hydrophobic treatment, the result is shown in figures 1 and 2, and after the treatment by the method, the contact angle of the B30 copper-nickel alloy is higher than 150 degrees.
Example 2:
the invention provides a preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy, which comprises the following steps:
(1) b30 copper-nickel alloy pretreatment:
b30 copper-nickel alloy is first polished with 60, 120, 320, 600 and 1200 mesh sand paper to eliminate surface impurity and oxide, then ultrasonically cleaned with absolute alcohol and acetone for 10 min to eliminate organic matter, and finally N-washed2Drying for later use;
(2) preparing a super-hydrophobic structure by electrodeposition:
the electrolyte formula consists of graphene oxide, linolenic acid, benzotriazole and absolute ethyl alcohol, and the mass fractions of the components are respectively as follows: 20% of graphene oxide, 30% of linolenic acid, 10% of benzotriazole and 40% of absolute ethyl alcohol. The preparation method of the super-hydrophobic B30 copper-nickel alloy provided by the invention has the advantages that the constant potential is 2V, the electrodeposition time is 10 h, and the temperature is 50 ℃.
The electrochemical impedance test of the graphene-based super-hydrophobic B30 copper-nickel alloy is carried out in a simulated seawater corrosion medium (the detection result of sea water in east China: distilled water + 2.5% NaCl + 0.2% CaCl2+ 0.6% MgCl2.6H20+ 0.5% Na2SO4+ 0.15% NaHC03+ 0.08% KCl), and compared with the B30 copper-nickel alloy which is not subjected to super-hydrophobic treatment, the results are shown in fig. 3, fig. 4 and table 2, after the treatment by the method, the membrane resistance and the charge transfer resistance are obviously increased, and the prepared graphene-based super-hydrophobic B30 copper-nickel alloy has better corrosion resistance.
TABLE 2
| Condition | Rf, Ω.cm2 | Rct, Ω.cm2 | Corrosion inhibition efficiency% |
| Without super-hydrophobic treatment | 652 | 764 | |
| Super-hydrophobic | 16242 | 34715 | 97.2% |
Claims (9)
1. A preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy is characterized by comprising the following two steps:
(1) b30 copper-nickel alloy pretreatment:
b30 copper-nickel alloy is first polished with 60, 120, 320, 600 and 1200 mesh sand paper to eliminate surface impurity and oxide, then ultrasonically cleaned with absolute alcohol and acetone for 10 min to eliminate organic matter, and finally N-washed2Drying for later use;
(2) preparing a super-hydrophobic structure by electrodeposition:
the electrolyte formula consists of graphene oxide, linolenic acid, benzotriazole and absolute ethyl alcohol, and the mass fractions of the components are respectively as follows: 10-20% of graphene oxide, 20-30% of linolenic acid, 5-10% of benzotriazole and 40-70% of absolute ethyl alcohol, wherein the sum of the percentage contents of all the components is 100%.
2. The preparation method of the graphene-based super-hydrophobic B30 copper-nickel alloy provided by the invention has the advantages that the constant potential is 2-5V, the electrodeposition time is 5-15 h, and the temperature is 30-50 ℃, so that the graphene super-hydrophobic B30 copper-nickel alloy can be obtained, and the super-hydrophobic B30 copper-nickel alloy has excellent corrosion resistance in simulated seawater corrosion medium.
3. The preparation method of the graphene-based super-hydrophobic B30 copper-nickel alloy according to claim 1, wherein the electrolyte formula is composed of graphene oxide, linolenic acid, benzotriazole and absolute ethyl alcohol.
4. The method for preparing the graphene-based super-hydrophobic B30 copper-nickel alloy as claimed in claim 1, wherein the B30 copper-nickel alloy is first sanded by 60 mesh, 120 mesh, 320 mesh, 600 mesh and 1200 mesh sandpaper to remove impurities and oxides on the surface.
5. The method for preparing the graphene-based super-hydrophobic B30 copper-nickel alloy as claimed in claim 1, wherein the B30 copper-nickel alloy after oil removal is subjected to N treatment2And drying for later use.
6. The method for preparing the graphene-based super-hydrophobic B30 CuNi alloy of claim 1, wherein the simulated seawater is distilled water + 2.5% NaCl + 0.2% CaCl2+ 0.6% MgCl2.6H20+ 0.5% Na2SO4+ 0.15% NaHC03+ 0.08% KCl.
7. The preparation method of the graphene-based super-hydrophobic B30 copper-nickel alloy as claimed in claim 1, wherein the constant potential is 2-5V.
8. The preparation method of the graphene-based super-hydrophobic B30 copper-nickel alloy as claimed in claim 1, wherein the electrodeposition time is 5-15 h.
9. The preparation method of the graphene-based super-hydrophobic B30 copper-nickel alloy as claimed in claim 1, wherein the electrodeposition temperature is 30-50 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257332.0A CN111763976A (en) | 2019-04-01 | 2019-04-01 | Preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910257332.0A CN111763976A (en) | 2019-04-01 | 2019-04-01 | Preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111763976A true CN111763976A (en) | 2020-10-13 |
Family
ID=72718556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910257332.0A Withdrawn CN111763976A (en) | 2019-04-01 | 2019-04-01 | Preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111763976A (en) |
-
2019
- 2019-04-01 CN CN201910257332.0A patent/CN111763976A/en not_active Withdrawn
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110644026B (en) | Preparation method of super-hydrophobic aluminum alloy surface with self-repairing characteristic | |
| CN102335651B (en) | A kind of preparation method with the brass of the super hydrophobic surface of corrosion resisting property | |
| CN103952732A (en) | Metal super-hydrophobic surface and preparation method thereof | |
| CN102003148A (en) | Oil casing pipe resisting CO2 corrosion and production method thereof | |
| CN110629266B (en) | Preparation method of super-hydrophobic stainless steel surface with self-repairing characteristic | |
| CN102268662B (en) | A kind of preparation method of the cupronickel B 30 of the super hydrophobic surface with corrosion inhibition | |
| CN111763976A (en) | Preparation method of graphene-based super-hydrophobic B30 copper-nickel alloy | |
| CN111690967A (en) | Preparation method of super-hydrophobic B10 copper-nickel alloy | |
| CN112064080A (en) | Preparation method of sulfonated modified graphene oxide-based super-hydrophobic B30 copper-nickel alloy surface | |
| CN101613868A (en) | A kind of method that forms self-assembly corrosion inhibition film on the copper electrode surface | |
| CN106011976A (en) | Surface treatment technology of high-precision spring | |
| CN110629265B (en) | Preparation method of super-hydrophobic low-carbon steel surface with self-repairing characteristic | |
| CN111763971A (en) | Preparation method of graphene-based super-hydrophobic B10 copper-nickel alloy | |
| CN112064081A (en) | Preparation method of sulfonated modified graphene oxide-based super-hydrophobic B10 copper-nickel alloy surface | |
| CN111690966A (en) | Preparation method of super-hydrophobic B30 copper-nickel alloy | |
| CN105274602A (en) | Anti-corrosion surface treatment method based on rare-earth modified phosphoric and sulfuric acid anodizing | |
| CN111763975A (en) | Preparation method of graphene-based super-hydrophobic magnesium alloy | |
| CN110644027B (en) | Preparation method of super-hydrophobic B10 copper-nickel alloy surface with self-repairing characteristic | |
| CN112064078A (en) | Preparation method of sulfonated modified graphene oxide-based super-hydrophobic aluminum alloy surface | |
| CN111763977A (en) | Preparation method of graphene-based super-hydrophobic aluminum alloy | |
| CN111763973A (en) | Preparation method of graphene-based super-hydrophobic low-carbon steel | |
| CN112064083A (en) | Preparation method of sulfonated modified graphene oxide-based super-hydrophobic low-carbon steel surface | |
| CN106498470A (en) | B4C Al neutron absorber material surface protection film generation methods | |
| CN112064082A (en) | Preparation method of sulfonated modified graphene oxide-based super-hydrophobic magnesium alloy surface | |
| CN112064079A (en) | Preparation method of sulfonated modified graphene oxide based super-hydrophobic stainless steel surface |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201013 |