CN117265606A - Electroplating solution for metal filter screen, metal filter screen and preparation method of metal filter screen - Google Patents
Electroplating solution for metal filter screen, metal filter screen and preparation method of metal filter screen Download PDFInfo
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- CN117265606A CN117265606A CN202311321205.5A CN202311321205A CN117265606A CN 117265606 A CN117265606 A CN 117265606A CN 202311321205 A CN202311321205 A CN 202311321205A CN 117265606 A CN117265606 A CN 117265606A
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- 229910052751 metal Inorganic materials 0.000 title claims abstract description 108
- 239000002184 metal Substances 0.000 title claims abstract description 108
- 238000009713 electroplating Methods 0.000 title claims abstract description 61
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 49
- 238000005260 corrosion Methods 0.000 claims abstract description 35
- 230000007797 corrosion Effects 0.000 claims abstract description 35
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 25
- 230000000844 anti-bacterial effect Effects 0.000 claims abstract description 24
- 238000007747 plating Methods 0.000 claims abstract description 20
- 229910000365 copper sulfate Inorganic materials 0.000 claims abstract description 8
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 8
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910000368 zinc sulfate Inorganic materials 0.000 claims abstract description 8
- 229960001763 zinc sulfate Drugs 0.000 claims abstract description 8
- 239000003381 stabilizer Substances 0.000 claims abstract description 6
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- RAXXELZNTBOGNW-UHFFFAOYSA-N imidazole Natural products C1=CNC=N1 RAXXELZNTBOGNW-UHFFFAOYSA-N 0.000 claims description 75
- 239000000243 solution Substances 0.000 claims description 70
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 44
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 17
- 239000011259 mixed solution Substances 0.000 claims description 14
- 238000009210 therapy by ultrasound Methods 0.000 claims description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 230000001476 alcoholic effect Effects 0.000 claims description 7
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical group [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 6
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 6
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 6
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 6
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 14
- 239000011248 coating agent Substances 0.000 description 12
- 238000000576 coating method Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 238000000527 sonication Methods 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D3/00—Electroplating: Baths therefor
- C25D3/02—Electroplating: Baths therefor from solutions
- C25D3/56—Electroplating: Baths therefor from solutions of alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/10—Filter screens essentially made of metal
- B01D39/12—Filter screens essentially made of metal of wire gauze; of knitted wire; of expanded metal
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
Abstract
The invention discloses an electroplating solution for a metal filter screen, the metal filter screen and a preparation method thereof. The electroplating solution for the metal filter screen comprises the following components in concentration: 5g/L to 10g/L of graphene; 20g/L to 40g/L of copper sulfate; 60g/L to 80g/L of zinc sulfate; 1g/L to 5g/L of stabilizer; 1g/L to 3g/L of surfactant. The electroplating solution for the metal filter screen with the brand new composition provided by the invention is adopted to electroplate the metal filter screen, a plating layer can be formed on the surface of the metal filter screen, the plating layer can effectively improve the corrosion resistance of the obtained metal filter screen, and meanwhile, the metal filter screen has certain antibacterial performance. Furthermore, compared with the method for adding unmodified graphene, the method for adding the modified graphene into the electroplating solution can further greatly improve the corrosion resistance and the antibacterial performance of the electroplated metal filter screen.
Description
Technical Field
The invention belongs to the technical field of filter screen preparation, and particularly relates to an electroplating solution for a metal filter screen, the metal filter screen and a preparation method thereof.
Background
The metal filter screen is formed by adopting a plurality of layers of metal screens as filter materials and overlapping each other in a crossing way. The novel cleaning agent has the advantages of safety, firmness, long service life, low resistance, repeated cleaning, high economical efficiency and the like, and is widely applied. For example, it can be widely used for air conditioner coarse dust filtration, primary filtration of industrial air ventilation equipment, filtration of high temperature resistant systems, etc.
Stainless steel wires, aluminum wires, iron wires, copper wires or alloy wires are common metal materials for preparing metal filter screens; however, it is found that the metal filter screen made of metal material has poor corrosion resistance and no antibacterial property if the surface is not treated, which limits the wider application.
Disclosure of Invention
Based on the above, the invention aims to improve the corrosion resistance and the antibacterial performance of the metal filter screen.
In order to achieve the above-mentioned purpose, the present invention firstly provides an electroplating solution for a metal filter screen, and the metal filter screen is electroplated by adopting the electroplating solution, which can form a plating layer on the surface of the metal filter screen, and the plating layer can effectively improve the corrosion resistance of the obtained metal filter screen, and simultaneously has a certain antibacterial property.
The electroplating solution for the metal filter screen comprises the following technical scheme.
An electroplating solution for a metal filter screen comprises the following components in concentration:
the inventor finds that the electroplating solution of the invention is adopted to electroplate the metal filter screen, so that the corrosion resistance of the metal filter screen can be improved, and the metal filter screen has certain antibacterial property.
In some of these embodiments, the plating solution for a metal screen comprises the following concentrations of components:
in some of these embodiments, the plating solution for a metal screen comprises the following concentrations of components:
in some of these embodiments, the plating solution for a metal screen comprises the following concentrations of components:
in some of these embodiments, the plating solution for a metal screen comprises the following concentrations of components:
in some embodiments, the graphene is modified graphene, and the modified graphene is obtained by ultrasonic treatment of graphene in an alcohol solution containing hydrogen peroxide and imidazole.
The inventors have surprisingly found in the study that the addition of the modified graphene to the electroplating solution can further substantially improve the corrosion resistance and the antibacterial performance of the electroplated metal filter screen compared with the addition of unmodified graphene.
In some of these embodiments, the mass concentration of hydrogen peroxide in the alcohol solution is 10 to 20%.
In some of these embodiments, the mass concentration of hydrogen peroxide in the alcohol solution is 14 to 17%.
In some of these embodiments, the mass concentration of hydrogen peroxide in the alcohol solution is 15-16%.
In some embodiments, the concentration of imidazole in the alcoholic solution is 2g/L to 8g/L.
In some embodiments, the concentration of imidazole in the alcoholic solution is 3g/L to 6g/L.
In some embodiments, the concentration of imidazole in the alcoholic solution is 4g/L to 6g/L.
In some of these embodiments, the concentration of imidazole in the alcoholic solution is 4.5g/L to 5.5g/L.
In some of these embodiments, the concentration of imidazole in the alcoholic solution is 4.8g/L to 5.2g/L.
In some of these embodiments, the concentration of imidazole in the alcoholic solution is 5g/L.
In some of these embodiments, the conditions of the sonication include: the ultrasonic frequency is 20 kHz-40 kHz, and the ultrasonic power is 600W-1500W.
In some of these embodiments, the conditions of the sonication include: the ultrasonic frequency is 25 kHz-30 kHz, and the ultrasonic power is 800W-1200W.
In some of these embodiments, the conditions of the sonication include: the ultrasonic frequency was 28kHz and the ultrasonic power was 1000W.
In some embodiments, the time of the ultrasonic treatment is 3-5 hours.
In some of these embodiments, the time of the sonication is from 3.5 hours to 4.5 hours.
In some of these embodiments, the time of the sonication is 4 hours.
In some embodiments, the method for preparing the modified graphene comprises the following steps:
(1) Mixing methanol with hydrogen peroxide to obtain a mixed solution;
(2) Adding imidazole into the mixed solution to obtain a modified solution;
(3) And adding graphene into the modified liquid, and performing ultrasonic treatment to obtain the modified graphene.
In some embodiments, the volume ratio of the methanol to the hydrogen peroxide in the step (1) is 1-2:1-2; the mass fraction of the hydrogen peroxide is 20-40%.
In some embodiments, the volume ratio of methanol to hydrogen peroxide in step (1) is 1:1, a step of; the mass fraction of the hydrogen peroxide is 25-35%.
In some embodiments, the volume ratio of methanol to hydrogen peroxide in step (1) is 1:1, a step of; the mass fraction of the hydrogen peroxide is 30%.
In some embodiments, the imidazole to mixed liquor dosage ratio in step (2) is 3 g-6 g:1L.
In some embodiments, the imidazole to mixed liquor dosage ratio in step (2) is 4 g-6 g:1L.
In some embodiments, the imidazole to blend solution dosage ratio in step (2) is 4.5g to 5.5g to 1L.
In some embodiments, the imidazole to blend ratio in step (2) is 4.8g to 5.2g to 1L.
In some embodiments, the imidazole to blend ratio in step (2) is 5g to 1L.
In some embodiments, the dosage ratio of the graphene to the modifying liquid in the step (3) is 1 kg:4L-8L.
In some embodiments, the dosage ratio of the graphene to the modifying liquid in the step (3) is 1 kg:5L-8L.
In some embodiments, the dosage ratio of the graphene to the modifying liquid in the step (3) is 1 kg:5L-7L.
In some embodiments, the dosage ratio of the graphene to the modifying liquid in the step (3) is 1 kg:5.5L-6.5L.
In some embodiments, the dosage ratio of the graphene to the modifying liquid in the step (3) is 1 kg:5.8L-6.2L.
In some embodiments, the dosage ratio of graphene to modifying liquid in step (3) is 1kg:6l.
In some of these embodiments, the conditions of the sonication include: the ultrasonic frequency is 20 kHz-40 kHz, and the ultrasonic power is 600W-1500W.
In some of these embodiments, the conditions of the sonication include: the ultrasonic frequency is 25 kHz-30 kHz, and the ultrasonic power is 800W-1200W.
In some of these embodiments, the conditions of the sonication include: the ultrasonic frequency was 28kHz and the ultrasonic power was 1000W.
In some embodiments, the time of the ultrasonic treatment is 3-5 hours.
In some of these embodiments, the time of the sonication is from 3.5 hours to 4.5 hours.
In some of these embodiments, the time of the sonication is 4 hours.
In some of these embodiments, the stabilizer is polyvinylpyrrolidone.
In some of these embodiments, the surfactant is sodium dodecyl benzene sulfonate.
The invention also provides a corrosion-resistant antibacterial metal filter screen, which comprises the following technical scheme.
The invention relates to a corrosion-resistant antibacterial metal filter screen, which is obtained by electroplating a metal filter screen, wherein the electroplating solution adopted in the electroplating treatment is the electroplating solution for the metal filter screen.
In some embodiments, the metal filter screen is made of iron wires.
The invention also provides a preparation method of the corrosion-resistant antibacterial metal filter screen, which comprises the following technical scheme.
A preparation method of a corrosion-resistant antibacterial metal filter screen comprises the following steps: and (3) placing the metal filter screen into the electroplating liquid for the metal filter screen for electroplating, thus obtaining the corrosion-resistant antibacterial metal filter screen.
In some of these embodiments, the plating conditions include: the temperature is 25-35 ℃, the pH is 4-6, and the current density is 4A/dm 2 ～6A/dm 2 The electroplating time is 15 min-25 min.
In some of these embodiments, electroplated condition packsThe method comprises the following steps: the temperature was 30℃and the pH was 5, the current density was 5A/dm 2 The electroplating time is 20min.
The invention provides a novel electroplating solution for a metal filter screen, which is used for electroplating the metal filter screen and can form a plating layer on the surface of the metal filter screen, and the plating layer can effectively improve the corrosion resistance of the obtained metal filter screen and simultaneously has a certain antibacterial property.
Furthermore, compared with the method for adding unmodified graphene, the method for adding the modified graphene into the electroplating solution can further greatly improve the corrosion resistance and the antibacterial performance of the electroplated metal filter screen.
The corrosion-resistant antibacterial metal filter screen is obtained by electroplating the metal filter screen, and the electroplating solution adopted in the electroplating treatment is the electroplating solution for the metal filter screen, so that the obtained metal filter screen with the coating has good corrosion resistance and antibacterial performance.
Detailed Description
The technical scheme of the invention is further described by the following specific examples. It will be apparent to those skilled in the art that the examples are merely to aid in understanding the invention and are not to be construed as a specific limitation thereof.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The terms "comprising" and "having" and any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, apparatus, article, or device that comprises a list of steps is not limited to the elements or modules listed but may alternatively include additional steps not listed or inherent to such process, method, article, or device.
In the present invention, the term "plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The following are specific examples.
Example 1 preparation of electroplating solution for Metal Filter mesh
The embodiment provides an electroplating solution for a metal filter screen, which comprises the following components in concentration:
the preparation method comprises the following steps: adding graphene, copper sulfate, zinc sulfate, polyvinylpyrrolidone and sodium dodecyl benzene sulfonate into deionized water according to the above dosage, and stirring uniformly to obtain the electroplating solution containing the above concentration components for the metal filter screen.
Example 2 preparation of electroplating solution for Metal Filter mesh
The embodiment provides an electroplating solution for a metal filter screen, which comprises the following components in concentration:
the modified graphene is prepared by the following steps:
(1) Taking methanol and 30% hydrogen peroxide according to the volume ratio of 1:1, uniformly mixing to obtain a mixed solution.
(2) Adding imidazole into the mixed solution, and uniformly mixing to obtain a modified solution; wherein the dosage ratio of imidazole to the mixed solution is 5g to 1L.
(3) Adding graphene into a modifying liquid (the dosage ratio of the graphene to the modifying liquid is 1kg: 6L), and treating for 4 hours under ultrasonic conditions (the ultrasonic frequency is 28kHz, and the ultrasonic power is 1000W); and after the ultrasonic treatment is finished, separating the solid, and washing and drying to obtain the modified graphene.
The preparation method of the electroplating solution for the metal filter screen comprises the following steps: adding the modified graphene, copper sulfate, zinc sulfate, polyvinylpyrrolidone and sodium dodecyl benzene sulfonate into deionized water according to the above dosage, and stirring uniformly to obtain the electroplating solution containing the above concentration components for the metal filter screen.
Example 3 preparation of electroplating solution for Metal Filter mesh
The embodiment provides an electroplating solution for a metal filter screen, which comprises the following components in concentration:
the modified graphene is prepared by the following steps:
(1) Taking methanol and hydrogen peroxide with mass fraction of 20% according to volume ratio of 1:2, uniformly mixing to obtain a mixed solution.
(2) Adding imidazole into the mixed solution, and uniformly mixing to obtain a modified solution; wherein the dosage ratio of imidazole to the mixed solution is 3g to 1L.
(3) Adding graphene into a modifying liquid (the dosage ratio of the graphene to the modifying liquid is 1kg: 4L), and treating for 3 hours under ultrasonic conditions (the ultrasonic frequency is 28kHz, and the ultrasonic power is 1500W); and after the ultrasonic treatment is finished, separating the solid, and washing and drying to obtain the modified graphene.
The preparation method of the electroplating solution for the metal filter screen comprises the following steps: adding the modified graphene, copper sulfate, zinc sulfate, polyvinylpyrrolidone and sodium dodecyl benzene sulfonate into deionized water according to the above dosage, and stirring uniformly to obtain the electroplating solution containing the above concentration components for the metal filter screen.
EXAMPLE 4 preparation of electroplating solution for Metal Filter mesh
The embodiment provides an electroplating solution for a metal filter screen, which comprises the following components in concentration:
the modified graphene is prepared by the following steps:
(1) Taking methanol and 40% hydrogen peroxide by mass percent according to the volume ratio of 2:1, uniformly mixing to obtain a mixed solution.
(2) Adding imidazole into the mixed solution, and uniformly mixing to obtain a modified solution; wherein the dosage ratio of imidazole to the mixed solution is 6g to 1L.
(3) Adding graphene into a modifying liquid (the dosage ratio of the graphene to the modifying liquid is 1kg: 8L), and treating for 5 hours under ultrasonic conditions (the ultrasonic frequency is 40kHz, and the ultrasonic power is 600W); and after the ultrasonic treatment is finished, separating the solid, and washing and drying to obtain the modified graphene.
The preparation method of the electroplating solution for the metal filter screen comprises the following steps: adding the modified graphene, copper sulfate, zinc sulfate, polyvinylpyrrolidone and sodium dodecyl benzene sulfonate into deionized water according to the above dosage, and stirring uniformly to obtain the electroplating solution containing the above concentration components for the metal filter screen.
Example 7 preparation of Metal Filter mesh
The electroplating solutions for metal filter screens prepared in examples 1 to 6 were placed into an electrolytic cell, respectively, then a wire filter screen with the specification of 0.5cm×20cm×40cm was used as a cathode, and a nickel plate with the specification of 0.5cm×20cm×40cm was used as an anode; at 30 ℃, the pH value is 5, and the current density is 5A/dm 2 Electroplating for 20min under the condition of (2); and taking out the iron wire filter screen after electroplating is finished, and obtaining the metal filter screen containing the plating layer.
The metal filters containing the plating layer prepared using the plating solutions for metal filters prepared in examples 1 to 6 were each tested for antibacterial properties by referring to the adsorption method in GB 21551.2-2010. Corrosion resistance was tested with reference to the following method: and (3) placing the metal filter screen containing the coating into 3% hydrochloric acid spray for 24 hours, and observing whether corrosion and corrosion conditions occur on the surface of the metal filter screen containing the coating. Wherein, no corrosion: the metal filter screen containing the coating is complete in coating and difficult to scrape, and pitting corrosion does not occur on the metal surface; grade 1 corrosion: the metal filter screen coating containing the coating is relatively complete and difficult to scrape, and a small amount of pitting corrosion occurs on the metal surface; grade 2 corrosion: the metal filter screen coating containing the coating is complete, but can be scraped, and a small amount of pitting corrosion appears on the surface of the metal sample; grade 3 corrosion: the metal filter screen containing the coating is incomplete, partial spalling occurs, and a large amount of pitting corrosion occurs on the metal surface; grade 4 corrosion: the metal filter screen coating containing the coating is completely peeled off, and more pitting or surface corrosion occurs on the metal surface. The test results are shown in Table 1.
TABLE 1
Note that: a refers to an iron wire filter screen before electroplating in example 7, i.e., an iron wire filter screen without electroplating treatment.
As can be seen from the experimental data in Table 1, the electroplating solution for the metal filter screen is adopted for electroplating, so that the metal filter screen has certain corrosion resistance and also has certain antibacterial property.
From the experimental data in table 1, it can be seen that the antibacterial rate of the metal filter screen obtained by electroplating the electroplating solution for the metal filter screen prepared in examples 2 to 4 is greatly improved compared with that in example 1; meanwhile, the corrosion resistance level is also greatly improved. This illustrates: compared with the method for adding unmodified graphene, the method for adding the modified graphene into the electroplating solution can greatly improve the antibacterial performance and corrosion resistance of the electroplated metal filter screen.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (10)
1. An electroplating solution for a metal filter screen, which is characterized by comprising the following components in concentration:
5g/L to 10g/L of graphene;
20g/L to 40g/L of copper sulfate;
60g/L to 80g/L of zinc sulfate;
1g/L to 5g/L of stabilizer;
1g/L to 3g/L of surfactant.
2. The plating solution for a metal filter according to claim 1, comprising the following concentration of components:
6g/L to 8g/L of graphene;
25g/L to 35g/L of copper sulfate;
65g/L to 75g/L of zinc sulfate;
2g/L to 4g/L of stabilizer;
1g/L to 3g/L of surfactant.
3. The plating solution for a metal filter according to claim 2, comprising the following concentration of components:
6.5g/L to 7.5g/L of graphene;
28g/L to 32g/L of copper sulfate;
68g/L to 72g/L of zinc sulfate;
2.5g/L to 3.5g/L of stabilizer;
1.5g/L to 2.5g/L of surfactant.
4. The plating solution for a metal filter screen according to claim 1, wherein the graphene is modified graphene obtained by subjecting graphene to ultrasonic treatment in an alcohol solution containing hydrogen peroxide and imidazole.
5. The plating solution for a metal filter screen according to claim 4, wherein the mass concentration of hydrogen peroxide in the alcohol solution is 10 to 20%; and/or the number of the groups of groups,
the concentration of imidazole in the alcohol solution is 2 g/L-8 g/L;
preferably, the mass concentration of hydrogen peroxide in the alcohol solution is 14-17%, more preferably 15-16%;
preferably, the concentration of imidazole in the alcoholic solution is 3g/L to 6g/L, more preferably 4g/L to 6g/L, and even more preferably 4.5g/L to 5.5g/L.
6. The plating solution for a metal filter screen according to claim 4, wherein the preparation method of the modified graphene comprises the following steps:
(1) Mixing methanol with hydrogen peroxide to obtain a mixed solution;
(2) Adding imidazole into the mixed solution to obtain a modified solution;
(3) And adding graphene into the modified liquid, and performing ultrasonic treatment to obtain the modified graphene.
7. The electroplating solution for the metal filter screen according to claim 6, wherein the volume ratio of methanol to hydrogen peroxide in the step (1) is 1-2:1-2, and the mass fraction of hydrogen peroxide is 20-40%; and/or the number of the groups of groups,
the dosage ratio of the imidazole to the mixed solution in the step (2) is 3 g-6 g:1L; and/or the number of the groups of groups,
the dosage ratio of the graphene to the modifying liquid in the step (3) is 1 kg:4L-8L; and/or the number of the groups of groups,
the conditions of the ultrasonic treatment include: the ultrasonic frequency is 20 kHz-40 kHz, and the ultrasonic power is 600W-1500W; and/or the number of the groups of groups,
the ultrasonic treatment time is 3-5 hours;
preferably, in the step (1), the volume ratio of methanol to hydrogen peroxide is 1:1, a step of; the mass fraction of the hydrogen peroxide is 25-35%;
preferably, the dosage ratio of imidazole to mixed liquor in the step (2) is 4 g-6 g:1L, more preferably 4.5 g-5.5 g:1L;
preferably, the dosage ratio of the graphene to the modifying liquid in the step (3) is 1 kg:5L-8L, more preferably 1 kg:5L-7L, and still more preferably 1 kg:5.5L-6.5L;
preferably, the conditions of the ultrasonic treatment include: the ultrasonic frequency is 25 kHz-30 kHz, and the ultrasonic power is 800W-1200W;
preferably, the time of the ultrasonic treatment is 3.5-4.5 hours.
8. The plating solution for a metal screen according to any one of claims 1 to 7, wherein the stabilizer is polyvinylpyrrolidone; and/or the number of the groups of groups,
the surfactant is sodium dodecyl benzene sulfonate.
9. A corrosion-resistant antibacterial metal filter screen, which is characterized in that the antibacterial metal filter screen is obtained by electroplating the metal filter screen, wherein the electroplating solution adopted in the electroplating treatment is the electroplating solution for the metal filter screen according to any one of claims 1 to 8.
10. The preparation method of the corrosion-resistant antibacterial metal filter screen is characterized by comprising the following steps of: electroplating the metal filter screen in the electroplating solution for the metal filter screen according to any one of claims 1 to 8 to obtain the corrosion-resistant antibacterial metal filter screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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