CN107638714A - A kind of method that water-oil separating filter screen is prepared using atmospheric pressure plasma - Google Patents
A kind of method that water-oil separating filter screen is prepared using atmospheric pressure plasma Download PDFInfo
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- CN107638714A CN107638714A CN201610579211.4A CN201610579211A CN107638714A CN 107638714 A CN107638714 A CN 107638714A CN 201610579211 A CN201610579211 A CN 201610579211A CN 107638714 A CN107638714 A CN 107638714A
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- atmospheric pressure
- pressure plasma
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- polymeric web
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Abstract
The present invention relates to a kind of method that water-oil separating filter screen is prepared using atmospheric pressure plasma, a kind of specific method that the super hydrophilic underwater superoleophobic filter screen available for water-oil separating is prepared using atmospheric pressure plasma, pass through atmospheric plasma treatment, certain coarse structure is built on the fiber of polymeric web and introduces hydrophilic radical, obtain super hydrophilic polymeric web, and then underwater superoleophobic polymeric web is obtained, realize water-oil separating.This method using plasma is surface-treated to polymeric web, environmentally safe without using chemicals, is a kind of environment-friendly preparation method thereof；Plasma processing efficiency is high, simple to operate, and efficiently super hydrophilicization processing can be carried out to polymeric web；The super hydrophilic underwater superoleophobic net of gained can be effectively separated to a variety of oil water mixtures, and separative efficiency is up to more than 97%.
Description
Technical field
Prepared the present invention relates to a kind of using atmospheric pressure plasma available for the super hydrophilic-underwater superoleophobic of water-oil separating
The method of filter screen.
Background technology
Oil accident caused by oil exploitation, industrial production etc. and oily waste water seriously pollute environment and caused to the mankind huge
Big economic loss.In recent years, extreme wetability material is widely used in the research of water-oil separating, such as super-hydrophobic-super oleophylic, super close
Water-superoleophobic etc. under water.Patent CN102979066A discloses absorption and the separation method of a kind of spilled oil on water surface, by being fixed on
Polyurethane sponge in super-hydrophobic-super oleophylic woven wire adsorbs oil slick, but needs to collect by extruding after absorption every time
Oil slick, therefore substantially reduce water-oil separating efficiency.Patent CN103173998A discloses a kind of for the super-hydrophobic of water-oil separating
The preparation method weaved cotton cloth, in surface modification transition metal nanoparticles of weaving cotton cloth, obtain superhydrophobic fabric and realize water-oil separating.Specially
Sharp CN105056577A discloses a kind of preparation method of the super-hydrophobic water-oil separationg film of super oleophylic, will using three layers of spraying process
It is online that PTFE-PPS composite membranes are covered in stainless steel wire, and super-hydrophobic super-oleophylic net is obtained after high temperature plastifies, and realizes profit point
From.Patent CN105664534A discloses a kind of preparation method for the super-hydrophobic cigarette end that can be applied to water-oil separating, by by cigarette
Head is separately immersed in certain density NaOH solution and dissolved with a certain amount of hexadecyl trimethoxy silane ethanol solution
Face so that cigarette end has super-hydrophobic oleophylic performance and reaches the effect of water-oil separating.But above method mostly uses chemistry side
Method, cause other new problem of environmental pollutions while solving oily pollution, and procedure complexity is cumbersome, production efficiency compared with
It is low.
The content of the invention
It is an object of the invention to provide a kind of green preparation side of super hydrophilic-underwater superoleophobic net for water-oil separating
Method, this method is environmentally friendly and preparation efficiency is high.
Technical scheme：
For the environment-friendly preparation method thereof of super hydrophilic-underwater superoleophobic net of water-oil separating, at atmospheric pressure plasma
Reason, certain coarse structure is built on the fiber of polymeric web and introduces hydrophilic radical, super hydrophilic polymeric web is obtained, enters
And underwater superoleophobic polymeric web is obtained, realize water-oil separating.
A kind of method that water-oil separating filter screen is prepared using atmospheric pressure plasma, step are as follows：
Atmospheric pressure plasma 2, which generates system, includes atmospheric pressure plasma generator 1, high voltage power supply 4, the and of source of the gas 5
Gas mass flow controller 6；The high-voltage output end and low-voltage output of high voltage power supply 4 occur with atmospheric pressure plasma respectively
The electrode of device 1 is connected, and working gas is passed through atmospheric pressure plasma by source of the gas 5 by gas mass flow controller 6
Device 1；Atmospheric pressure plasma generator 1 is fixed on support, 50-500 purpose polymers net 3 is placed in atmospheric pressure etc.
Immediately below gas ions outlet, 0~15mm of vertical range；Gas mass flow controller 6 is adjusted, working gas is entered atmospheric pressure
Plasma producing apparatus 1, high voltage power supply 4 is opened, gradually steps up output voltage, form stable atmospheric pressure plasma 2；
In the presence of atmospheric pressure plasma 2, functionalization is realized to polymeric web 3；Polymerization is acted on by plasma etching
Thing network fiber surface row acts on surface row into hydrophilic radical into micro-nano coarse structure, and by plasma oxidation, obtains
Super hydrophilic polymeric web, and then obtain underwater superoleophobic characteristic, you can prepare the extreme wetability net for water-oil separating.
The working gas of described generation atmospheric pressure plasma is one or both of inert gas, nitrogen, air
It is mixed above.
Described atmospheric pressure plasma be atmospheric pressure plate electrode discharge plasma, atmosphere pressure plasma jet flow or
The inferior gas ions of air hydraulic fluid.
Beneficial effects of the present invention：
(1) this method using plasma is surface-treated to polymeric web, without using chemicals, to environment without dirt
Dye, is a kind of environment-friendly preparation method thereof；
(2) plasma processing efficiency is high, simple to operate, and efficiently super hydrophilicization processing can be carried out to polymeric web；
(3) super hydrophilic-underwater superoleophobic net of gained can be effectively separated to a variety of oil water mixtures, and separative efficiency reaches
More than 97%.
Brief description of the drawings
Fig. 1 is the preparation facilities schematic diagram of super hydrophilic-underwater superoleophobic net for water-oil separating.
Fig. 2 (a) is the photo for the water contact angle in atmosphere, netted after atmospheric plasma treatment.
Fig. 2 (b) is the photo for the oily contact angle under water, netted after atmospheric plasma treatment.
Fig. 3 (a) is the scanning electron microscopic picture of net surface before corona treatment under 50 μm.
Fig. 3 (b) is the scanning electron microscopic picture of net surface before corona treatment under 1 μm.
Fig. 3 (c) is the scanning electron microscopic picture of net surface after corona treatment under 50 μm.
Fig. 3 (d) is the scanning electron microscopic picture of net surface after corona treatment under 1 μm.
Fig. 4 is separative efficiency of prepared super hydrophilic/underwater superoleophobic net to different oil water mixtures.
In figure：1 atmospheric pressure plasma generator；2 atmospheric pressure plasmas；3 polymeric webs；
4 high voltage power supplies；5 sources of the gas；6 gas mass flow controllers.
Embodiment
Below in conjunction with the accompanying drawings and technical scheme, the embodiment of the present invention is further illustrated.
Embodiment
As shown in Figure 2 to 4, it is embodiment provided by the invention.The polymeric web of selection be 500 mesh nylon wire, gas
Source 5 is helium, and high voltage power supply 7 is AC power, 50~120kHz of output frequency, 0~10kV of output voltage, peak power
150W, the vertical range between the outlet of atmospheric pressure plasma 2 and polymeric web 3 are 3mm.Fig. 2 is atmospheric pressure plasma
The water contact angle (in air) and oily contact angle (underwater) photo netted after processing, it was demonstrated that atmospheric plasma treatment obtains super
Hydrophilic-underwater superoleophobic polymeric web.Fig. 3 is the scanning electron microscopic picture of net surface before and after corona treatment, it was demonstrated that atmospheric pressure
Corona treatment micro-nano coarse structure in network fiber surface construction.
Hexadecane stained yellow is easy to observe using oil yellow, and it is 1 that yellow hexadecane is added to the water into configuration volume ratio:
2 oil water mixture.Super hydrophilic-underwater superoleophobic net soaked in advance is fixed in separator, by the mixed of hexadecane/water
Compound pours into separator, under the force of gravity, water flow through mesh and hexadecane can not by mesh, thus realize hexadecane/
The separation of aqueous mixtures.It is the separative efficiency of four kinds of oil water mixtures shown in Fig. 4, shows super hydrophilic-underwater superoleophobic netting gear
There is efficient oil and water separation capability.
Claims (4)
- A kind of 1. method that water-oil separating filter screen is prepared using atmospheric pressure plasma, it is characterised in that step is as follows：Atmospheric pressure plasma directly acts on 50-500 purpose polymers nets, under polymeric web is placed in atmospheric pressure plasma just 0~15mm of vertical range of side, atmospheric pressure plasma and polymeric web.
- A kind of 2. method that water-oil separating filter screen is prepared using atmospheric pressure plasma, it is characterised in that step is as follows：Atmospheric pressure plasma generation system includes atmospheric pressure plasma generator, high voltage power supply, source of the gas and gaseous mass Flow controller；The high-voltage output end and low-voltage output of the high voltage power supply electrode with atmospheric pressure plasma generator respectively It is connected, working gas is passed through atmospheric pressure plasma generator by source of the gas by gas mass flow controller；By atmospheric pressure Plasma producing apparatus is fixed on support, and 50-500 purpose polymers nets are placed under atmospheric pressure plasma outlet just Side, 0~15mm of vertical range；Gas mass flow controller is adjusted, working gas is filled into atmospheric pressure plasma Put, open high voltage power supply, gradually step up output voltage, form stable atmospheric pressure plasma；In atmospheric pressure plasma Under effect, functionalization is realized to polymeric web.
- 3. according to the method for claim 2, it is characterised in that the working gas of described generation atmospheric pressure plasma is One or both of inert gas, nitrogen, air are mixed above.
- 4. according to any described methods of claim 1-3, it is characterised in that described atmospheric pressure plasma flattens for air Plate electrode discharge plasma, atmosphere pressure plasma jet flow or the inferior gas ions of air hydraulic fluid.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610579211.4A CN107638714A (en) | 2016-07-21 | 2016-07-21 | A kind of method that water-oil separating filter screen is prepared using atmospheric pressure plasma |
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| CN201610579211.4A CN107638714A (en) | 2016-07-21 | 2016-07-21 | A kind of method that water-oil separating filter screen is prepared using atmospheric pressure plasma |
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| CN107638714A true CN107638714A (en) | 2018-01-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109603208A (en) * | 2019-01-09 | 2019-04-12 | 常熟理工学院 | A kind of net and preparation method thereof for water-oil separating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307392A (en) * | 2014-11-04 | 2015-01-28 | 华文蔚 | Double-group hydrophilic modification method for polymer microporous membrane |
-
2016
- 2016-07-21 CN CN201610579211.4A patent/CN107638714A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307392A (en) * | 2014-11-04 | 2015-01-28 | 华文蔚 | Double-group hydrophilic modification method for polymer microporous membrane |
Non-Patent Citations (1)
| Title |
|---|
| 刘源 等: "聚丙烯薄膜表面经大气压氩等离子体射流改性后的亲水性", 《高电压技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109603208A (en) * | 2019-01-09 | 2019-04-12 | 常熟理工学院 | A kind of net and preparation method thereof for water-oil separating |
| CN109603208B (en) * | 2019-01-09 | 2021-07-27 | 常熟理工学院 | Net for oil-water separation and preparation method thereof |
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Application publication date: 20180130 |
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