CN105256343A - Electrogalvanizing method based on choline chloride-xylitol deep eutectic solvent - Google Patents
Electrogalvanizing method based on choline chloride-xylitol deep eutectic solvent Download PDFInfo
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- CN105256343A CN105256343A CN201510821792.3A CN201510821792A CN105256343A CN 105256343 A CN105256343 A CN 105256343A CN 201510821792 A CN201510821792 A CN 201510821792A CN 105256343 A CN105256343 A CN 105256343A
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- xylitol
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Abstract
The invention discloses an electrogalvanizing method based on a choline chloride-xylitol deep eutectic solvent, belonging to the technical field of electroplating. According to the method, xylitol, choline chloride and distilled water are mixed at a constant temperature to obtain a transparent deep eutectic solvent; then zinc chloride is added into the deep eutectic solvent, and then the mixture is mixed at a constant temperature to obtain a zinciferous deep eutectic solvent which serves as electroplate liquid; a pure zinc plate serves as an anode; low-carbon steel serves as a cathode; and the anode and the cathode are dipped in the electroplate liquid for performing continuous current electroplating. The galvanization technology disclosed by the invention is safe and non-toxic, and is environment-friendly and economical; and the problem of environment pollution existing in borofluoride galvanization, halide galvanization and other processes is solved.
Description
Technical field
The present invention relates to a kind of electro-galvanizing method based on choline chloride 60-Xylitol eutectic solvent, belong to electroplating technology field.
Background technology
Electro-galvanizing is in the coating bath filling galvanizing flux, and the metallic zinc ion in galvanizing flux, is moved on negative electrode in the effect of potential difference and forms coating.Electro-galvanizing is widely used in the protective coating of ferrous materials, particularly prevents atomospheric corrosion.Tradition galvanized method has that prussiate is zinc-plated, chloride galvanizing etc.Wherein the zinc-plated prussiate because containing severe toxicity of prussiate, seriously polluted.Repone K containing a large amount of in chloride galvanizing electroplate liquid is serious to equipment corrosion.Employing choline chloride 60, Xylitol carry out electro-galvanizing as eutectic solvent, can reduce the pollution of environment.Number of patent application is 201310420602.8, name is called that " method that electroplating deposition prepares nanocrystalline structure gold-tin alloy coating " application discloses that a kind of method preparing gold-tin alloy coating, the method is mixed to get ionic liquid with choline chloride 60, urea and ethylene glycol according to mol ratio 1:2:4, then adds hydrochloro-auric acid, tin protochloride electrogilding tin alloy coating.Wherein ethylene glycol has certain toxicity, meet naked light, Gao Re or and oxidising agent, have the danger causing combustion explosion.
Summary of the invention
For overcoming the deficiencies in the prior art, the object of the present invention is to provide a kind of electro-galvanizing method based on choline chloride 60-Xylitol eutectic solvent, to this zincincation safety non-toxic, environmental protection and saving.
In order to realize above-mentioned technical purpose, the present invention is achieved by the following technical programs.
The invention provides a kind of electro-galvanizing method based on choline chloride 60-Xylitol eutectic solvent, specifically comprise the steps:
(1) containing the preparation of zinc eutectic solvent: first weigh Xylitol, choline chloride 60, distilled water according to mol ratio 1:2:3, then constant temperature stirring obtains transparent eutectic solvent under 50 DEG C of conditions, then weigh zinc chloride according to Xylitol mol ratio 0.25:1, join constant temperature stirring in above-mentioned eutectic solvent and obtain containing the eutectic solvent of zinc as electroplate liquid;
(2) using pure zine plate as anode, soft steel, as negative electrode, is immersed in the electroplate liquid that step (1) obtains and carries out continuous current plating, wherein: negative electrode and anode direct range are 1-2cm;
(3), after having electroplated, soft steel taken out cleaning, dry.
Further, in described step (2), constant current density is 2.5-5mA/cm
2.
Further, in described step (2), temperature of electroplating solution is 40-70 DEG C.
Further, in described step (2), electroplating time is 15-30 minute.
Compared with prior art, the present invention has following technique effect:
1, employing primary metabolite Xylitol substitutes urea, eutectic solvent prepared by ethylene glycol, has the feature of safety non-toxic.
2, choline chloride 60-Xylitol-distilled water eutectic solvent room-temperature conductivity is 3.20mscm
-1, far above choline chloride 60-urea eutectic solvent (0.75mscm
-1).
3, zinc-plated relative to traditional fluoroborate, halogenide is zinc-plated, the present invention's eutectic solvent environment-friendly biodegradable used, belongs to Green Chemistry solvent.
Accompanying drawing explanation
Fig. 1 is the SEM figure of the electro-galvanizing that in the present invention, embodiment 1 obtains;
As shown in Figure 1, electro-galvanizing surface microstructure slabbing.
Fig. 2 is the XRD figure of the electro-galvanizing that in the present invention, embodiment 1 obtains;
As shown in Figure 2, the XRD figure of electro-galvanizing, in Fig. 2, ordinate zou is intensity, and X-coordinate is two times of angles, and diffraction peak is metallic zinc and iron matrix.
Fig. 3 is the EDS energy spectrogram of the electro-galvanizing that in the present invention, embodiment 1 obtains;
As shown in Figure 3, the EDS power spectrum of electro-galvanizing illustrates that surface is metallic zinc.
Fig. 4 is the SEM figure of the electro-galvanizing that in the present invention, embodiment 2 obtains;
As shown in Figure 4, electro-galvanizing surface microstructure slabbing is distributed on matrix.
Fig. 5 is the SEM figure of the electro-galvanizing that in the present invention, embodiment 3 obtains;
As shown in Figure 5, electro-galvanizing surface microstructure becomes particulate state, distributes finer and close.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
DDS-307 conductivitimeter is adopted, DJS-1C type platinum black electrode (electrode constant is 0.92), choline chloride 60-Xylitol-distilled water eutectic solvent and the specific conductivity containing zinc eutectic solvent under measurement differing temps in following examples.
Embodiment 1
First respectively weighing 0.1mol Xylitol, 0.2mol choline chloride 60,0.3mol distilled water are positioned in beaker, at employing preservative film sealed beaker, then stir in 50 DEG C of constant temperature and obtain transparent eutectic solvent.Then add the zinc chloride of 0.025mol, 50 DEG C of constant temperature stir and obtain containing zinc eutectic solvent;
Using pure zine plate as anode, soft steel is as negative electrode, and what immerse heating in water bath to 50 DEG C carries out continuous current plating in 30 minutes containing zinc eutectic solvent, and wherein, negative electrode and anode direct range are 1cm, and current density is 2.5mA/cm
2;
After having electroplated, soft steel taking-up distilled water is cleaned 2 times, finally 60 DEG C of oven dry in an oven.
Room temperature, when 50 DEG C, choline chloride 60-Xylitol-distilled water eutectic solvent specific conductivity is respectively 3.20mscm
-1and 6.40mscm
-1.
Specific conductivity containing zinc eutectic solvent when 50 DEG C is 4.81mscm
-1.
Embodiment 2
First respectively weighing 0.1mol Xylitol, 0.2mol choline chloride 60,0.3mol distilled water are positioned in beaker, at employing preservative film sealed beaker, then stir in 50 DEG C of constant temperature and obtain transparent eutectic solvent.Then add the zinc chloride of 0.025mol, 50 DEG C of constant temperature stir and obtain containing zinc eutectic solvent;
Using pure zine plate as anode, soft steel is as negative electrode, and what immerse heating in water bath to 50 DEG C carries out continuous current plating in 15 minutes containing zinc eutectic solvent, and wherein, negative electrode and anode direct range are 2cm, and current density is 3mA/cm
2;
After having electroplated, soft steel taking-up distilled water is cleaned 2 times, finally 60 DEG C of oven dry in an oven.
Embodiment 3
First respectively weighing 0.1mol Xylitol, 0.2mol choline chloride 60,0.3mol distilled water are positioned in beaker, at employing preservative film sealed beaker, then stir in 50 DEG C of constant temperature and obtain transparent eutectic solvent.Then add the zinc chloride of 0.025mol, 50 DEG C of constant temperature stir and obtain containing zinc eutectic solvent;
Using pure zine plate as anode, soft steel is as negative electrode, and what immerse heating in water bath to 60 DEG C carries out continuous current plating in 30 minutes containing zinc eutectic solvent, and wherein, negative electrode and anode direct range are 1cm, and current density is 5mA/cm
2;
After having electroplated, soft steel taking-up distilled water is cleaned 2 times, finally 60 DEG C of oven dry in an oven.
When 60 DEG C, the specific conductivity of choline chloride 60-Xylitol-distilled water eutectic solvent is 6.40mscm
-1.
Specific conductivity containing zinc eutectic solvent when 60 DEG C is 5.98mscm
-1.
Claims (4)
1., based on an electro-galvanizing method for choline chloride 60-Xylitol eutectic solvent, it is characterized in that comprising the steps:
(1) containing the preparation of zinc eutectic solvent: first weigh Xylitol, choline chloride 60, distilled water according to mol ratio 1:2:3, then constant temperature stirring obtains transparent eutectic solvent under 50 DEG C of conditions, then weigh zinc chloride according to Xylitol mol ratio 0.25:1, join constant temperature stirring in above-mentioned eutectic solvent and obtain containing the eutectic solvent of zinc as electroplate liquid;
(2) using pure zine plate as anode, soft steel, as negative electrode, is immersed in the electroplate liquid that step (1) obtains and carries out continuous current plating, wherein: negative electrode and anode direct range are 1-2cm;
(3), after having electroplated, soft steel taken out cleaning, dry.
2. as claimed in claim 1 based on the electro-galvanizing method of choline chloride 60-Xylitol eutectic solvent, it is characterized in that, in described step (2), constant current density is 2.5-5mA/cm
2.
3. as claimed in claim 1 based on the electro-galvanizing method of choline chloride 60-Xylitol eutectic solvent, it is characterized in that, in described step (2), temperature of electroplating solution is 40-70 DEG C.
4. as claimed in claim 1 based on the electro-galvanizing method of choline chloride 60-Xylitol eutectic solvent, it is characterized in that, in described step (2), electroplating time is 15-30 minute.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106283140A (en) * | 2016-10-27 | 2017-01-04 | 安徽工业大学 | A kind of nickel-phosphorus alloy plating method based on glycine betaine urea water eutectic solvent |
| CN106435672A (en) * | 2016-08-26 | 2017-02-22 | 无锡光旭新材料科技有限公司 | Tin, zinc and nickel electroplating method based on choline chloride-malic acid deep-eutectic solvents |
| CN106498452A (en) * | 2016-10-27 | 2017-03-15 | 安徽工业大学 | A kind of electrogalvanizing method based on glycine betaine urea water eutectic solvent |
| CN108070887A (en) * | 2016-11-15 | 2018-05-25 | 财团法人工业技术研究院 | Electroplating method and system thereof |
| CN108642520A (en) * | 2018-06-28 | 2018-10-12 | 南京信息工程大学 | A method of zinc is generated based on choline chloride-malonic acid eutectic system |
| CN108707936A (en) * | 2018-06-28 | 2018-10-26 | 南京信息工程大学 | The method that choline chloride-glycerine system electrochemistry prepares metal spelter coating |
| CN108754556A (en) * | 2018-06-28 | 2018-11-06 | 南京信息工程大学 | A kind of method of simple system electrodepositing zinc coating |
| CN109292748A (en) * | 2018-09-21 | 2019-02-01 | 南京林业大学 | A method of quickly preparing phenolic aldehyde base carbon aerogels using eutectic ionic liquid |
| CN109825289A (en) * | 2019-03-26 | 2019-05-31 | 河北科技大学 | A kind of eutectic solvent is in the preparation method for preparing application and metal-doped carbon quantum dot in metal-doped carbon quantum dot |
| CN113088856A (en) * | 2021-03-31 | 2021-07-09 | 江西科技师范大学 | Deep eutectic solvent hot galvanizing additive and preparation method and application thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435672A (en) * | 2016-08-26 | 2017-02-22 | 无锡光旭新材料科技有限公司 | Tin, zinc and nickel electroplating method based on choline chloride-malic acid deep-eutectic solvents |
| CN106283140A (en) * | 2016-10-27 | 2017-01-04 | 安徽工业大学 | A kind of nickel-phosphorus alloy plating method based on glycine betaine urea water eutectic solvent |
| CN106498452A (en) * | 2016-10-27 | 2017-03-15 | 安徽工业大学 | A kind of electrogalvanizing method based on glycine betaine urea water eutectic solvent |
| CN108070887A (en) * | 2016-11-15 | 2018-05-25 | 财团法人工业技术研究院 | Electroplating method and system thereof |
| CN108642520A (en) * | 2018-06-28 | 2018-10-12 | 南京信息工程大学 | A method of zinc is generated based on choline chloride-malonic acid eutectic system |
| CN108707936A (en) * | 2018-06-28 | 2018-10-26 | 南京信息工程大学 | The method that choline chloride-glycerine system electrochemistry prepares metal spelter coating |
| CN108754556A (en) * | 2018-06-28 | 2018-11-06 | 南京信息工程大学 | A kind of method of simple system electrodepositing zinc coating |
| CN109292748A (en) * | 2018-09-21 | 2019-02-01 | 南京林业大学 | A method of quickly preparing phenolic aldehyde base carbon aerogels using eutectic ionic liquid |
| CN109292748B (en) * | 2018-09-21 | 2020-07-31 | 南京林业大学 | Method for rapidly preparing phenolic-based carbon aerogel by using eutectic ionic liquid |
| CN109825289A (en) * | 2019-03-26 | 2019-05-31 | 河北科技大学 | A kind of eutectic solvent is in the preparation method for preparing application and metal-doped carbon quantum dot in metal-doped carbon quantum dot |
| CN113088856A (en) * | 2021-03-31 | 2021-07-09 | 江西科技师范大学 | Deep eutectic solvent hot galvanizing additive and preparation method and application thereof |
| CN113088856B (en) * | 2021-03-31 | 2022-12-23 | 江西科技师范大学 | Deep eutectic solvent hot galvanizing additive and preparation method and application thereof |
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