CN105256343B - A kind of electrogalvanizing method based on Choline Chloride xylitol eutectic solvent - Google Patents
A kind of electrogalvanizing method based on Choline Chloride xylitol eutectic solvent Download PDFInfo
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- CN105256343B CN105256343B CN201510821792.3A CN201510821792A CN105256343B CN 105256343 B CN105256343 B CN 105256343B CN 201510821792 A CN201510821792 A CN 201510821792A CN 105256343 B CN105256343 B CN 105256343B
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- eutectic solvent
- choline chloride
- xylitol
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Abstract
The invention discloses a kind of electrogalvanizing method based on Choline Chloride xylitol eutectic solvent, belong to electroplating technology field.Xylitol, Choline Chloride and distillation water termostat stirring are obtained transparent eutectic solvent by this method first, and zinc chloride is then added in eutectic solvent again into constant temperature stirring obtains the eutectic solvent containing zinc, in this, as electroplate liquid；Using pure zine plate as anode, mild steel is immersed in progress constant current plating in electroplate liquid as negative electrode.Zincincation safety non-toxic of the present invention, environmental protection and saving, solve the problem of environmental pollution of the techniques such as borofluoride is zinc-plated, halide is zinc-plated presence.
Description
Technical field
The present invention relates to a kind of electrogalvanizing method based on Choline Chloride-xylitol eutectic solvent, belong to electroplating technology
Field.
Background technology
Electrogalvanizing is in the coating bath of galvanizing flux is filled, and the metal zinc ion in galvanizing flux is moved in the presence of potential difference
Coating is formed on to negative electrode.Electrogalvanizing is widely used in the protective coating of ferrous materials, particularly prevents atmospheric corrosion.Tradition
Galvanized method has zinc-plated, chloride galvanizing of cyanide etc..Wherein the zinc-plated cyanide because containing severe toxicity of cyanide, seriously polluted.
It is serious to equipment corrosion containing substantial amounts of potassium chloride in chloride galvanizing electroplate liquid.Using Choline Chloride, xylitol as low common
Molten solvent carries out electrogalvanizing, can reduce the pollution of environment.Number of patent application is 201310420602.8, entitled " plating is heavy
The method that product prepares nanocrystalline structure gold-tin alloy coating " application discloses a kind of method for preparing gold-tin alloy coating, the party
Method is with Choline Chloride, urea and ethylene glycol according to mol ratio 1:2:4 are mixed to get ionic liquid, then add gold chloride, chlorination
Stannous electroplates gold-tin alloy coating.Wherein ethylene glycol has certain toxicity, meets naked light, hyperpyrexia or is contacted with oxidant, has and draw
The danger of combust blast.
The content of the invention
It is low common based on Choline Chloride-xylitol it is an object of the invention to provide one kind to overcome the deficiencies in the prior art
The electrogalvanizing method of molten solvent, to zincincation safety non-toxic, the 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 electrogalvanizing method based on Choline Chloride-xylitol eutectic solvent, specifically include as
Lower step：
(1) preparation of the eutectic solvent containing zinc：It is first according to mol ratio 1:2:3 weigh xylitol, Choline Chloride, distillation
Water then under the conditions of 50 DEG C constant temperature stirring obtain transparent eutectic solvent, then according to xylitol mol ratio 0.25:1
Zinc chloride is weighed, constant temperature stirring in above-mentioned eutectic solvent is added to and obtains the eutectic solvent containing zinc as electroplate liquid；
(2) using pure zine plate as anode, mild steel is immersed in the electroplate liquid that step (1) is obtained as negative electrode and carries out perseverance
Electric current is electroplated, wherein：Negative electrode and anode direct range are 1-2cm；
(3) after the completion of electroplating, mild steel is taken out into cleaning, drying.
Further, constant current density is 2.5-5mA/cm in the step (2)2。
Further, temperature of electroplating solution is 40-70 DEG C in the step (2).
Further, electroplating time is 15-30 minutes in the step (2).
Compared with prior art, the present invention has following technique effect：
1st, urea, ethylene glycol are substituted using metabolite xylitol and prepares eutectic solvent, with safety non-toxic
Feature.
2nd, Choline Chloride-xylitol-distilled water eutectic solvent room-temperature conductivity is 3.20mscm-1, far above chlorination
Choline-urea eutectic solvent (0.75mscm-1)。
3rd, halide zinc-plated relative to traditional borofluoride is zinc-plated, and present invention eutectic solvent environmental protection used biological can be dropped
Solution, belongs to Green Chemistry solvent.
Brief description of the drawings
The SEM figures for the electrogalvanizing that Fig. 1 obtains for embodiment 1 in the present invention；
As shown in figure 1, plating zinc surface microstructure slabbing.
The XRD for the electrogalvanizing that Fig. 2 obtains for embodiment 1 in the present invention；
As shown in Fig. 2 ordinate is intensity in the XRD of electrogalvanizing, Fig. 2, abscissa is two times of angles, and diffraction maximum is gold
Belong to zinc and iron matrix.
The EDS energy spectrum diagrams for the electrogalvanizing that Fig. 3 obtains for embodiment 1 in the present invention；
As shown in figure 3, the EDS power spectrums of electrogalvanizing illustrate that surface is metallic zinc.
The SEM figures for the electrogalvanizing that Fig. 4 obtains for embodiment 2 in the present invention；
As shown in figure 4, plating zinc surface microstructure slabbing is distributed on matrix.
The SEM figures for the electrogalvanizing that Fig. 5 obtains for embodiment 3 in the present invention；
As shown in figure 5, plating zinc surface microstructure is into graininess, it is distributed finer and close.
Embodiment
Below in conjunction with specific embodiment, the present invention is described further.
DDS-307 conductivity meters, DJS-1C types platinum black electrode (electrode constant is 0.92), measurement are used in following examples
The electrical conductivity of Choline Chloride-xylitol-distilled water eutectic solvent and the eutectic solvent containing zinc under different temperatures.
Embodiment 1
Weigh 0.1mol xylitols, 0.2mol Choline Chlorides, 0.3mol distilled water respectively first to be positioned in beaker, adopting
Preservative film sealed beaker is used, then transparent eutectic solvent is obtained in 50 DEG C of constant temperature stirrings.Then 0.025mol chlorine is added
Change zinc, 50 DEG C of constant temperature stirrings obtain eutectic solvent containing zinc；
Using pure zine plate as anode, mild steel enters as negative electrode, the eutectic solvent containing zinc of immersion heating water bath to 50 DEG C
Row constant current plating in 30 minutes, wherein, negative electrode and anode direct range are 1cm, and current density is 2.5mA/cm2；
After the completion of plating, mild steel taking-up is cleaned 2 times with distilled water, finally 60 DEG C of drying in an oven.
Room temperature, Choline Chloride-xylitol-distilled water eutectic solvent electrical conductivity is respectively 3.20mscm at 50 DEG C-1With
6.40ms·cm-1。
The electrical conductivity of the eutectic solvent containing zinc is 4.81mscm at 50 DEG C-1。
Embodiment 2
Weigh 0.1mol xylitols, 0.2mol Choline Chlorides, 0.3mol distilled water respectively first to be positioned in beaker, adopting
Preservative film sealed beaker is used, then transparent eutectic solvent is obtained in 50 DEG C of constant temperature stirrings.Then 0.025mol chlorine is added
Change zinc, 50 DEG C of constant temperature stirrings obtain eutectic solvent containing zinc；
Using pure zine plate as anode, mild steel enters as negative electrode, the eutectic solvent containing zinc of immersion heating water bath to 50 DEG C
Row constant current plating in 15 minutes, wherein, negative electrode and anode direct range are 2cm, and current density is 3mA/cm2；
After the completion of plating, mild steel taking-up is cleaned 2 times with distilled water, finally 60 DEG C of drying in an oven.
Embodiment 3
Weigh 0.1mol xylitols, 0.2mol Choline Chlorides, 0.3mol distilled water respectively first to be positioned in beaker, adopting
Preservative film sealed beaker is used, then transparent eutectic solvent is obtained in 50 DEG C of constant temperature stirrings.Then 0.025mol chlorine is added
Change zinc, 50 DEG C of constant temperature stirrings obtain eutectic solvent containing zinc；
Using pure zine plate as anode, mild steel enters as negative electrode, the eutectic solvent containing zinc of immersion heating water bath to 60 DEG C
Row constant current plating in 30 minutes, wherein, negative electrode and anode direct range are 1cm, and current density is 5mA/cm2；
After the completion of plating, mild steel taking-up is cleaned 2 times with distilled water, finally 60 DEG C of drying in an oven.
The electrical conductivity of Choline Chloride-xylitol-distilled water eutectic solvent is 6.40mscm at 60 DEG C-1。
The electrical conductivity of the eutectic solvent containing zinc is 5.98mscm at 60 DEG C-1。
Claims (4)
1. a kind of electrogalvanizing method based on Choline Chloride-xylitol eutectic solvent, it is characterised in that comprise the following steps：
(1) preparation of the eutectic solvent containing zinc：It is first according to mol ratio 1:2:3 weigh xylitols, Choline Chloride, distilled water, so
Under the conditions of 50 DEG C constant temperature stirring obtain transparent eutectic solvent, then according to xylitol mol ratio 0.25:1 weighs chlorine
Change zinc, be added to constant temperature stirring in above-mentioned eutectic solvent and obtain the eutectic solvent containing zinc as electroplate liquid；
(2) using pure zine plate as anode, mild steel is immersed in the electroplate liquid that step (1) is obtained as negative electrode and carries out constant current
Plating, wherein：Negative electrode and anode direct range are 1-2cm；
(3) after the completion of electroplating, mild steel is taken out into cleaning, drying.
2. the electrogalvanizing method as claimed in claim 1 based on Choline Chloride-xylitol eutectic solvent, it is characterised in that
Constant current density is 2.5-5mA/cm in the step (2)2。
3. the electrogalvanizing method as claimed in claim 1 based on Choline Chloride-xylitol eutectic solvent, it is characterised in that
Temperature of electroplating solution is 40-70 DEG C in the step (2).
4. the electrogalvanizing method as claimed in claim 1 based on Choline Chloride-xylitol eutectic solvent, it is characterised in that
Electroplating time is 15-30 minutes in the step (2).
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| 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 |
| CN106283140B (en) * | 2016-10-27 | 2019-02-05 | 安徽工业大学 | It is a kind of based on glycine betaine-urea-water eutectic solvent nickel-phosphorus alloy plating method |
| CN106498452B (en) * | 2016-10-27 | 2019-04-16 | 安徽工业大学 | It is a kind of based on glycine betaine-urea-water eutectic solvent electrogalvanizing method |
| TWI662162B (en) * | 2016-11-15 | 2019-06-11 | 財團法人工業技術研究院 | Electroplating method and system thereof |
| 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 |
| CN108754556B (en) * | 2018-06-28 | 2020-08-04 | 南京信息工程大学 | Method for electrodepositing zinc coating by simple system |
| 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 |
| 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 |
| CN109825289B (en) * | 2019-03-26 | 2022-02-18 | 河北科技大学 | Application of eutectic solvent in preparation of metal-doped carbon quantum dots and preparation method of metal-doped carbon quantum dots |
| 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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