CN107158754B - A kind of preparation method of the copper mesh with oil-water separating function - Google Patents
A kind of preparation method of the copper mesh with oil-water separating function Download PDFInfo
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- CN107158754B CN107158754B CN201710600122.8A CN201710600122A CN107158754B CN 107158754 B CN107158754 B CN 107158754B CN 201710600122 A CN201710600122 A CN 201710600122A CN 107158754 B CN107158754 B CN 107158754B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
- B01D17/02—Separation of non-miscible liquids
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Abstract
The invention discloses a kind of preparation method of copper mesh with oil-water separating function, includes the following steps: that copper sheet to be processed is placed in deionized water by (1) and carry out ultrasonic cleaning；(2) surface of the copper sheet after being cleaned with pulsed optical fibre laser assisted ablation step (1), constructs the through-hole array with certain queueing discipline；(3) under laser parameter identical with step (2), change laser beam scan path, scan copper sheet surface with laser line scanning mode, obtain secondary hybridization micro nano structure on its surface, obtain basic copper mesh；(4) basic copper mesh is placed in hydrophobing agent and carries out surface-hydrophobicized processing, there is up to described in the copper mesh of oil-water separating function after dry.The present invention is flexible and convenient, controls laser processing parameter by computer, prepares the copper mesh with surface through-hole and surface micronano structure；And the size of through-hole, size distribution of micro-nano granules etc. can be regulated and controled by changing parameter.
Description
Technical field
Present invention relates particularly to a kind of preparation methods of copper mesh with oil-water separating function.
Background technique
For water resources problems all the time by the extensive concern of various circles of society, protection and purification water resource are that we are eternal
Topic.In recent years, in industrial production, life is discharged, and under the factors such as Oil spills, water pollution is on the rise.Water-oil separating conduct
Handle the primary link of water resource oily pollution problem, the concern by numerous researchers.Bionic super-hydrophobic surface is
The new oil-water separation method based on hydrophobic oleophilic oil principle provides possibility, using superhydrophobic surface behavior, prepares with micro-
The super hydrophobic surface in hole, enables oil to easily pass through and water can not pass through, to achieve the purpose that water-oil separating.
Currently, traditional widely applied oil-water separation method, including gravity is used, and centrifugal force, the methods of electrochemistry, but
It is that these methods still have certain oil liquid residual, separative efficiency is not high.Meanwhile some researchers pass through on metal mesh
Load graphene oxide is simultaneously perforated, and realizes water-oil separating, but high production cost, should not be manufactured on a large scale.Somebody passes through
The copper facing on polyurethane sponge obtains the sponge with oil-water separating function, and this method separating effect is preferable, but process
It is complicated.In addition, some new water-oil separating metal devices using the hydrophilic principle preparation of oleophobic are of concern.But generally
Water accounts for larger specific gravity in water-oil separating mixture, and in contrast to hydrophobic oleophilic oil principle, the hydrophilic device of oleophobic, which needs to separate, to be accounted for more
The liquid of specific gravity, reduces separative efficiency.
Summary of the invention
It is an object of the invention to overcome prior art defect, a kind of preparation of copper mesh with oil-water separating function is provided
Method.
Technical scheme is as follows:
A kind of preparation method of the copper mesh with oil-water separating function, includes the following steps:
(1) copper sheet to be processed is placed in deionized water and carries out ultrasonic cleaning；
(2) surface of the copper sheet after being cleaned with pulsed optical fibre laser assisted ablation step (1), constructs with certain queueing discipline
Through-hole array, through-hole therein is side length other polygon in the micron-scale, and the spacing between adjacent through-holes is 290~320 μ
m；The parameter of laser are as follows: laser focal is 328~330mm, and the spot diameter for being radiated at copper sheet surface is 0.04~0.06mm, function
Rate is 24~26W, and pulse recurrence frequency is 19~21kHz, and energy density is 63~64Jcm-2；
(3) under laser parameter identical with step (2), change laser beam scan path, scanned with laser line scanning mode
Copper sheet surface obtains secondary hybridization micro nano structure on its surface, obtains basic copper mesh, wherein laser line scanning mode is swept
The spacing for retouching line is 0.25~0.35mm；
(4) basic copper mesh is placed in hydrophobing agent and carries out surface-hydrophobicized processing, divided up to described with grease after dry
Copper mesh from function.
In a preferred embodiment of the invention, the time of the ultrasonic cleaning of the step (1) is 30min.
In a preferred embodiment of the invention, the spacing in the step (2) between adjacent through-holes is 300 μm.
In a preferred embodiment of the invention, in the step (2) laser parameter are as follows: laser focal is
329mm, the spot diameter for being radiated at copper sheet surface is 0.05mm, power 25W, pulse recurrence frequency 20kHz, energy density
For 63.66Jcm-2。
In a preferred embodiment of the invention, the scan line of the laser line scanning mode in the step (3)
Spacing is 0.3mm.
In a preferred embodiment of the invention, the hydrophobing agent in the step (4) is stearic ethanol solution,
Its concentration is 1.8~2.2g/L.
It is further preferred that the step (4) are as follows: basic copper mesh is placed in 40 DEG C of hydrophobing agent carry out it is surface-hydrophobicized
2h is handled, there is up to described in the copper mesh of oil-water separating function after dry.
Beneficial effects of the present invention:
1, the present invention is flexible and convenient, controls laser processing parameter by computer, preparation has surface through-hole and surface micro-nano
The copper mesh of rice structure；And the size of through-hole, size distribution of micro-nano granules etc. can be regulated and controled by changing parameter.
2, post-processing step of the invention is simple, and the copper mesh of laser preparation need to only pass through the simple silicic acid anhydride of a step,
It can make copper mesh that there is oil-water separating function.
3, preparation time of the present invention is short, can be realized quick preparation.
4, mainly there are two advantages for the copper mesh prepared by method of the invention: 1) by two steps of laser processing and hydrophobing agent
In conjunction with, enormously simplify realize oil-water separating function material procedure of processing；2) material requested is cheap, and process is simple, easily
In extensive manufacture.
Detailed description of the invention
Fig. 1 is the copper mesh pictorial diagram with oil-water separating function of preparation of the embodiment of the present invention.
Fig. 2 is the copper mesh SEM figure with oil-water separating function of preparation of the embodiment of the present invention.
Fig. 3 is the water of the copper mesh with oil-water separating function of preparation of the embodiment of the present invention and the contact schematic diagram (oil of oil
Drop is kerosene).
Fig. 4 is that the copper mesh separation front and back effect picture with oil-water separating function of preparation of the embodiment of the present invention is (wherein red
Liquid is the kerosene dyed through red ink, and transparency liquid is common clear water).
Specific embodiment
Technical solution of the present invention is further explained and described below by way of specific embodiment combination attached drawing.
Embodiment 1
A kind of preparation method of the copper mesh with oil-water separating function, includes the following steps:
(1) copper sheet to be processed being placed in progress ultrasonic cleaning 30min in deionized water, copper sheet purity is 99.99%,
Size is Φ 26mm0.1mm；
(2) with the pulsed optical fibre laser (arteries and veins that the IPG:YLP laser of wavelength 1064nm, pulse duration 100ns generate
Rush optical-fiber laser) assisted ablation step (1) cleaning after copper sheet surface, construct the through-hole array with certain queueing discipline,
In through-hole be square of the side length at 100 μm, and the spacing between adjacent through-holes be 300 μm；The parameter of laser are as follows: laser is burnt
It is 0.05mm, power 25W, pulse recurrence frequency 20kHz, energy away from the spot diameter for for 329mm, being radiated at copper sheet surface
Density is 63.66Jcm-2The machining area of laser is limited in the square region of a length of 13.5mm x 13.5mm of copper sheet center edge
In domain, scanning speed 500mms-1, laser continues ablation until copper sheet penetrates；
(3) under laser parameter identical with step (2), change laser beam scan path, scanned with laser line scanning mode
Copper sheet surface, scanning area is constant, multiple scanning 10 times, obtains secondary hybridization micro nano structure on its surface, obtains basic copper
Net, wherein the spacing of the scan line of laser line scanning mode is 0.3mm；
(4) it is surface-hydrophobicized that basic copper mesh is placed in progress in 40 DEG C of hydrophobing agent (the stearic ethanol solution of 2g/L)
Handle 2h, after taking-up natural air drying to get described in as shown in Figure 1 with the copper mesh of oil-water separating function.Prepared copper mesh
Surface Ultrastructure as shown in Fig. 2, oil-water separation is as shown in Figure 3 and Figure 4.
The foregoing is only a preferred embodiment of the present invention, the range that the present invention that therefore, it cannot be limited according to is implemented, i.e.,
Equivalent changes and modifications made in accordance with the scope of the invention and the contents of the specification should still be within the scope of the present invention.
Claims (5)
1. a kind of preparation method of the copper mesh with oil-water separating function, characterized by the following steps:
(1) copper sheet to be processed is placed in deionized water and carries out ultrasonic cleaning；
(2) wavelength 1064nm, the pulsed optical fibre laser ablation step that the IPG:YLP laser of pulse duration 100ns generates are used
Suddenly the surface of the copper sheet after (1) cleaning, constructs the through-hole array with certain queueing discipline, and through-hole therein is side length micro-
The other polygon of meter level, and the spacing between adjacent through-holes is 290~320 μm；The parameter of laser are as follows: laser focal be 328~
330mm, be radiated at copper sheet surface spot diameter be 0.04~0.06mm, power be 24~26W, pulse recurrence frequency be 19~
21kHz, energy density are 63~64Jcm-2；
(3) under laser parameter identical with step (2), change laser beam scan path, scan copper sheet with laser line scanning mode
Surface obtains secondary hybridization micro nano structure on its surface, obtains basic copper mesh, wherein the scan line of laser line scanning mode
Spacing be 0.25~0.35mm；
(4) basic copper mesh is placed in 40 DEG C of hydrophobing agent and carries out surface-hydrophobicized processing 2h, there is oil up to described in after dry
The copper mesh of water separation function, hydrophobing agent are stearic ethanol solution, and concentration is 1.8~2.2g/L.
2. preparation method as described in claim 1, it is characterised in that: the time of the ultrasonic cleaning of the step (1) is
30min。
3. preparation method as described in claim 1, it is characterised in that: the spacing in the step (2) between adjacent through-holes is
300μm。
4. preparation method as described in claim 1, it is characterised in that: the parameter of laser in the step (2) are as follows: laser focal
For 329mm, the spot diameter for being radiated at copper sheet surface is 0.05mm, power 25W, pulse recurrence frequency 20kHz, and energy is close
Degree is 63.66Jcm-2。
5. preparation method as described in claim 1, it is characterised in that: laser line scanning mode in the step (3) is swept
The spacing for retouching line is 0.3mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710600122.8A CN107158754B (en) | 2017-07-21 | 2017-07-21 | A kind of preparation method of the copper mesh with oil-water separating function |
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| CN201710600122.8A CN107158754B (en) | 2017-07-21 | 2017-07-21 | A kind of preparation method of the copper mesh with oil-water separating function |
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| CN107158754A CN107158754A (en) | 2017-09-15 |
| CN107158754B true CN107158754B (en) | 2019-04-09 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108159735B (en) * | 2017-12-29 | 2020-01-21 | 厦门大学 | Copper mesh with super-amphiphobic property and preparation method and application thereof |
| CN110038449B (en) * | 2018-01-15 | 2021-07-30 | 广东工业大学 | Metal micropore array filter membrane and manufacturing method thereof |
| CN109081397B (en) * | 2018-08-16 | 2020-06-23 | 西南科技大学 | Oil-containing domestic water purification device and preparation method thereof |
| CN110870988A (en) * | 2018-08-29 | 2020-03-10 | 中国石油化工股份有限公司 | Copper net for oil-water separation |
| CN109396665B (en) * | 2018-11-29 | 2020-01-21 | 华中科技大学 | Method for preparing oil-water separation membrane by picosecond laser |
| CN110201422A (en) * | 2019-07-12 | 2019-09-06 | 青岛大学 | The method that one step prepares super-hydrophobic oil-water separation mesh film |
| CN113368538B (en) * | 2021-04-23 | 2022-06-21 | 厦门大学 | Flexible copper mesh with deposited aluminum oxide nano coating and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439708A (en) * | 2014-11-18 | 2015-03-25 | 清华大学 | Super-hydrophobic high-adhesion metal surface and manufacturing method thereof |
| CN105688447A (en) * | 2016-01-21 | 2016-06-22 | 北京理工大学 | Filter screen capable of realizing efficient oil-water separation, and method for preparing filter screen by femtosecond laser |
-
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- 2017-07-21 CN CN201710600122.8A patent/CN107158754B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439708A (en) * | 2014-11-18 | 2015-03-25 | 清华大学 | Super-hydrophobic high-adhesion metal surface and manufacturing method thereof |
| CN105688447A (en) * | 2016-01-21 | 2016-06-22 | 北京理工大学 | Filter screen capable of realizing efficient oil-water separation, and method for preparing filter screen by femtosecond laser |
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