CN106350785A - Method and device for preparing transparent superhydrophobic coating based on thermal plasma - Google Patents
Method and device for preparing transparent superhydrophobic coating based on thermal plasma Download PDFInfo
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- CN106350785A CN106350785A CN201610973354.3A CN201610973354A CN106350785A CN 106350785 A CN106350785 A CN 106350785A CN 201610973354 A CN201610973354 A CN 201610973354A CN 106350785 A CN106350785 A CN 106350785A
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- coating
- voltage
- transparent hydrophobic
- hydrophobic coating
- copper electrode
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- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/50—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges
- C23C16/503—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating using electric discharges using dc or ac discharges
Abstract
The invention relates to a method and a device for preparing a transparent superhydrophobic coating based on thermal plasma, which belongs to the technical field of superhydrophobic coating. The method comprises the following steps: (1) adding graphite powder and dibutyl phthalate to polydimethyl siloxane, and stirring for uniformly mixing, and uniformly coating the mixed liquid on the surface of a glass slide, and then drying the glass slide coated with the mixed liquid to obtain a composite coating; and (2) fixing the glass slide having the composite coating in the step (1) at the centers of two copper electrodes, and applying an alternating voltage through a high-voltage power source to generate an arc discharge at atmospheric pressure on the composite coating, so that the hydrophobic nanoparticles are deposited on the surfaces of the copper electrodes to obtain transparent superhydrophobic coating on the surfaces of the copper electrodes. The method disclosed by the invention has the advantages of simple process, low cost, low requirements on equipment and short preparation period, and is suitable for mass production of transparent superhydrophobic coating, and the obtained transparent superhydrophobic coating has high purity and stable performance.
Description
Technical field
The invention belongs to super hydrophobic coating technical field is and in particular to one kind prepares transparent hydrophobic based on hot plasma
The method and device of coating.
Background technology
Super hydrophobic material is that a kind of static contact angle is more than 150 °, the low-surface-energy material that roll angle is less than 10 °, because of its tool
There is excellent hydrophobicity, show wide application prospect in fields such as automatically cleaning, anti-icing, antifouling, anti-corrosion and composites.
Wherein, transparent hydrophobic material has super-hydrophobicity and the transparency concurrently, and in solar panel automatically cleaning, touch screen is antifouling, keep out the wind
Glass is anti-icing etc., and engineering technology difficult point has great functional requirement, thus promotes the extensive, in batches of high-quality super hydrophobic material
Change technology of preparing research and development.
Preparation method super-hydrophobic at present mainly has sol-gal process, microphase-separated method, template, the side such as nanoassemble
Method, but the complicated process of preparation of said method, are still difficult to meet the extensive, production of mass, and super-hydrophobic preparation especially with
The preparation of transparent hydrophobic is the most difficult, on the one hand, super-hydrophobicity requires material to have surface roughness；On the other hand, thoroughly
Bright property requires surface smooth as far as possible, to reduce surface scattering, therefore, looks for simple process, efficient transparent hydrophobic system
Preparation Method is extremely urgent.
Content of the invention
In view of this, it is an object of the invention to: (1) provide one kind transparent hydrophobic coating is prepared based on hot plasma
Method；(2) provide a kind of device preparing transparent hydrophobic coating based on hot plasma.
For reaching above-mentioned purpose, the present invention following technical scheme of offer:
1st, a kind of method preparing transparent hydrophobic coating based on hot plasma, specifically includes following steps:
(1) preparation of composite coating: add powdered graphite, Dibutyl phthalate in polydimethylsiloxane, stir to three
Person uniformly mixes, and mixed liquor is evenly applied to slide surface, is then dried place to the microscope slide being coated with mixed liquor
Reason, prepared composite coating；
(2) preparation of transparent hydrophobic coating: the microscope slide in step (1) with composite coating is fixed on two copper electricity
Extremely central authorities, apply alternating voltage by high voltage power supply so that producing the arc discharge under atmospheric pressure on described composite coating, thus
The hydrophobic nano-particles on composite coating surface deposit to described copper electrode surface, transparent hydrophobic are obtained on described copper electrode surface
Coating.
Further, in step (1), described dimethyl siloxane, powdered graphite, Dibutyl phthalate mass ratio be 10～
20:2～7:1～5.
Further, in step (1), described dried is specially and 10～50min is dried in 70～130 DEG C of baking oven.
Further, in step (2), described alternating voltage is 1～5kv.
Further, in step (2), the described arc discharge time is 2～6s.
2nd, a kind of device preparing transparent hydrophobic coating based on hot plasma, including high-voltage ac power 1, protection electricity
Resistance 2, high-voltage probe 3, copper electrode i 4, copper electrode ii 5, oscillograph 6 and current sensor 7；One end of high-voltage ac power 1 with
One end of protective resistance 2 is connected, other end ground connection, the other end of protective resistance 2 and copper electrode i 4 phase of high-voltage ac power 1
Even, copper electrode ii 5 is connected with current sensor 7 one end, and current sensor 7 other end is grounded, and the one of oscillograph 6 is terminated with height
Pressure probe 3, is in contactless connection, oscillograph 6 other end and electric current between high-voltage probe 3 and protective resistance 2, copper electrode i 4
Sensor 7 is connected.
Further, described high-voltage ac power 1 can provide the alternating voltage of 0～50kv.
Further, the resistance of described protective resistance 2 is 5～8k ω.
The beneficial effects of the present invention is: the invention provides one kind prepares transparent hydrophobic coating based on hot plasma
Method and device, the method process is simple, low cost, low for equipment requirements, short preparation period, suitable large-scale production is transparent
Super-hydrophobic coat, prepared transparent hydrophobic coating purity is high, stable performance, and the relatively high transparent that this coating possesses can be used for
Solar panel antifouling, anti-icing and the light-absorbing and electricity-generating ability that do not affect solaode.
Brief description
In order that the purpose of the present invention, technical scheme and beneficial effect are clearer, the present invention provides drawings described below to carry out
Illustrate:
Fig. 1 is transparent hydrophobic coating Static Contact angle observation figure；
Fig. 2 is the installation drawing preparing transparent hydrophobic coating.
Specific embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
Transparent hydrophobic coating is prepared using the device shown in Fig. 2.
Embodiment 1
(1) preparation of composite coating: by polydimethylsiloxane, powdered graphite, Dibutyl phthalate 10:2:1 in mass ratio
Mixing, stirs and uniformly mixes to three, with spraying process, mixed liquor is evenly applied to slide surface, is then coated with mixing
The microscope slide of liquid is put in 70 DEG C of baking oven and 50min is dried, prepared composite coating；
(2) preparation of transparent hydrophobic coating: the microscope slide in step (1) with composite coating is fixed on two copper electricity
Extremely central authorities, protective resistance is 5k ω, applies 1kv alternating voltage so that producing under atmospheric pressure on composite coating by high voltage power supply
Arc discharge 6s, thus the hydrophobic nano-particles on composite coating surface deposit to copper electrode surface, copper electrode surface be obtained
Transparent hydrophobic coating.
Embodiment 2
(1) preparation of composite coating: by polydimethylsiloxane, powdered graphite, Dibutyl phthalate 20:7:5 in mass ratio
Mixing, stirs and uniformly mixes to three, with spraying process, mixed liquor is evenly applied to slide surface, is then coated with mixing
The microscope slide of liquid is put in 100 DEG C of baking oven and 30min is dried, prepared composite coating；
(2) preparation of transparent hydrophobic coating: the microscope slide in step (1) with composite coating is fixed on two copper electricity
Extremely central authorities, protective resistance is 6k ω, applies 3kv alternating voltage so that producing under atmospheric pressure on composite coating by high voltage power supply
Arc discharge 4s, thus the hydrophobic nano-particles on composite coating surface deposit to copper electrode surface, copper electrode surface be obtained
Transparent hydrophobic coating.
Embodiment 3
(1) preparation of composite coating: by polydimethylsiloxane, powdered graphite, Dibutyl phthalate 15:5:3 in mass ratio
Mixing, stirs and uniformly mixes to three, with spraying process, mixed liquor is evenly applied to slide surface, is then coated with mixing
The microscope slide of liquid is put in 130 DEG C of baking oven and 10min is dried, prepared composite coating；
(2) preparation of transparent hydrophobic coating: the microscope slide in step (1) with composite coating is fixed on two copper electricity
Extremely central authorities, protective resistance is 8k ω, applies 5kv alternating voltage so that producing under atmospheric pressure on composite coating by high voltage power supply
Arc discharge 6s, thus the hydrophobic nano-particles on composite coating surface deposit to copper electrode surface, copper electrode surface be obtained
Transparent hydrophobic coating.
Fig. 1 is transparent hydrophobic coating Static Contact angle observation figure, and as seen from the figure, 10 microlitres of water droplets stand on transparent super thin
Water coating surface, water drop static contact angle reaches 156 °, and water droplet is easy to tumble, and coating has excellent hydrophobic performance.
Finally illustrate, preferred embodiment above only in order to technical scheme to be described and unrestricted, although logical
Cross above preferred embodiment the present invention to be described in detail, it is to be understood by those skilled in the art that can be
In form and various changes are made to it, without departing from claims of the present invention limited range in details.
Claims (8)
1. a kind of the method for transparent hydrophobic coating is prepared it is characterised in that comprising the steps: based on hot plasma
(1) preparation of composite coating: add powdered graphite, Dibutyl phthalate in polydimethylsiloxane, stir equal to three
Even mixing, mixed liquor is evenly applied to slide surface, is then dried process to the microscope slide being coated with mixed liquor, system
Obtain composite coating；
(2) preparation of transparent hydrophobic coating: the microscope slide in step (1) with composite coating is fixed in two copper electrodes
Centre, applies alternating voltage by high voltage power supply so that producing the arc discharge under atmospheric pressure on described composite coating, thus compound
The hydrophobic nano-particles of coating surface deposit to described copper electrode surface, transparent hydrophobic are obtained on described copper electrode surface and apply
Layer.
2. as claimed in claim 1 a kind of based on hot plasma prepare transparent hydrophobic coating method it is characterised in that
In step (1), described dimethyl siloxane, powdered graphite, the mass ratio of Dibutyl phthalate are 10～20:2～7:1～5.
3. as claimed in claim 1 a kind of based on hot plasma prepare transparent hydrophobic coating method it is characterised in that
In step (1), described dried is specially and 10～50min is dried in 70～130 DEG C of baking oven.
4. as claimed in claim 1 a kind of based on hot plasma prepare transparent hydrophobic coating method it is characterised in that
In step (2), described alternating voltage is 1～5kv.
5. as claimed in claim 1 a kind of based on hot plasma prepare transparent hydrophobic coating method it is characterised in that
In step (2), the described arc discharge time is 2～6s.
6. a kind of based on hot plasma prepare transparent hydrophobic coating device it is characterised in that include high-voltage ac power
(1), protective resistance (2), high-voltage probe (3), copper electrode i (4), copper electrode ii (5), oscillograph (6) and current sensor (7)；
One end of high-voltage ac power (1) is connected with one end of protective resistance (2), the other end ground connection of high-voltage ac power (1), protection
The other end of resistance (2) is connected with copper electrode i (4), and copper electrode ii (5) is connected with current sensor (7) one end, current sensor
(7) other end ground connection, the one of oscillograph (6) is terminated with high-voltage probe (3), high-voltage probe (3) and protective resistance (2), copper electrode i
(4) it is in contactless connection between, oscillograph (6) other end is connected with current sensor (7).
7. as claimed in claim 6 a kind of based on hot plasma prepare transparent hydrophobic coating device it is characterised in that
Described high-voltage ac power (1) can provide the alternating voltage of 0～50kv.
8. as claimed in claim 6 a kind of based on hot plasma prepare transparent hydrophobic coating device it is characterised in that
The resistance of described protective resistance (2) is 5～8k ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610973354.3A CN106350785A (en) | 2016-10-27 | 2016-10-27 | Method and device for preparing transparent superhydrophobic coating based on thermal plasma |
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|---|---|---|---|
| CN201610973354.3A CN106350785A (en) | 2016-10-27 | 2016-10-27 | Method and device for preparing transparent superhydrophobic coating based on thermal plasma |
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| CN201610973354.3A Pending CN106350785A (en) | 2016-10-27 | 2016-10-27 | Method and device for preparing transparent superhydrophobic coating based on thermal plasma |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322143A (en) * | 2018-12-07 | 2019-02-12 | 东华大学 | A kind of type siloxane monomer plasma processing method of superhydrophobic surface material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642378A (en) * | 2013-11-14 | 2014-03-19 | 重庆大学 | Antiseptic super-hydrophobic paint for electric power system fittings and preparation method |
| CN104403453A (en) * | 2014-11-16 | 2015-03-11 | 重庆大学 | Semiconductor superhydrophobic paint and preparation method thereof |
-
2016
- 2016-10-27 CN CN201610973354.3A patent/CN106350785A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642378A (en) * | 2013-11-14 | 2014-03-19 | 重庆大学 | Antiseptic super-hydrophobic paint for electric power system fittings and preparation method |
| CN104403453A (en) * | 2014-11-16 | 2015-03-11 | 重庆大学 | Semiconductor superhydrophobic paint and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| LI,J.ET.AL: "One-step preparation of transparent superhydrophobic coatings using atmospheric arc discharge", 《APPLIED PHYSICS LETTERS》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322143A (en) * | 2018-12-07 | 2019-02-12 | 东华大学 | A kind of type siloxane monomer plasma processing method of superhydrophobic surface material |
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Application publication date: 20170125 |