CN106924997A - A kind of oil oil separation titanium foil and its processing method and application method - Google Patents
A kind of oil oil separation titanium foil and its processing method and application method Download PDFInfo
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- CN106924997A CN106924997A CN201710338806.5A CN201710338806A CN106924997A CN 106924997 A CN106924997 A CN 106924997A CN 201710338806 A CN201710338806 A CN 201710338806A CN 106924997 A CN106924997 A CN 106924997A
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- titanium foil
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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 oil oil separation titanium foil and its processing method and application method, wherein titanium foil includes titanium foil base material, and titanium foil substrate surface is machined with microwell array, nanostructured is formed with around each micropore.Processing method of the present invention is cleaned to titanium foil base material first, is carried out micro-drilling to titanium foil base material using femto-second laser after cleaning and is processed to form microwell array, and titanium foil substrate surface finally is carried out into fluorination treatment.The oil oil that the present invention can be used for immiscible organic solvent is separated.
Description
Technical field
The present invention relates to micro-nano manufacture field, specifically one kind oil oil separation titanium foil and its processing method and user
Method.
Background technology
Oil oil based on microcellular structure separates the surface tension for referring to base material between two kinds of immiscible organic solvents
Surface tension between, so as to show have different imbibition characteristics to different organic solvents, i.e., to different organic solvents
There is opposite wettability, be finally reached the effect of different organic solvents separation.Have in the practice of future solution environmental problem
And be widely applied.
Nowadays, water-oil separating experiment has been achieved for breakthrough progress, successfully realizes with economic, environmental protection, efficiently
Waste water of the method to oily pollution filter, reach the effect purified to water.It is critical in oil water separation process
Factor is that the coarse structure of material surface increased hydrophilic or hydrophobic possibility, so that material is to oil and the wetability of water
Difference, realizes the purpose of water-oil separating.At present, the method for increasing material surface coarse structure has a lot, such as ion etching, change
Learn vapour deposition, electrostatic spinning etc..But, the separation between organic solvent is still a huge challenge.River thunder academician's class
The research of initiative has been done in separation of the topic group to organic solvent, and they corrode cashier using the method for chemical attack on copper mesh
Rice needle construction, then modified by PFTS low-surface-energies, the organic liquid of different surfaces tension force can just show opposite wetting
Characteristic, so as to reach the purpose that organic solvent is efficiently separated.But, during using chemical attack, chemical solvent is unavoidable
Environment can be polluted, so, the present invention directly carries out micro- brill based on the basis of environment-friendly using femtosecond laser
Hole, quick and convenient, required process simplification.
The content of the invention the invention provides a kind of oil oil separation titanium foil and its processing method and application method, to reach
Titanium foil can realize oily separate purpose.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of oil oil separation titanium foil, it is characterised in that：Including titanium foil base material, titanium foil substrate surface is machined with microwell array, micro-
The aperture of each micropore is at most in micron order in hole array, titanium foil substrate surface by after fluorination treatment around each micropore shape
Into there is nanostructured.
A kind of processing method of oil oil separation titanium foil, it is characterised in that：Comprise the following steps：
（1）, cleaning titanium foil substrate surface, obtain clean titanium foil base material to remove organic impurities；
（2）, using femto-second laser to step（1）Titanium foil substrate surface after cleaning carries out micro-drilling processing, makes titanium foil base material
Surface forms microwell array, and micropore inner material is sputtered and is deposited in around micropore and forms coarse knot in micro-drilling process
Structure；
（3）, by step（2）The titanium foil substrate surface for having coarse structure after processing around micropore carries out fluorination treatment, by fluorination
Treatment carries out low-surface-energy modification to titanium foil substrate surface, obtains the titanium foil substrate surface of low-surface-energy.
A kind of processing method of described oil oil separation titanium foil, it is characterised in that：The titanium foil base material is existed from concentration
More than 99.9% industrially pure titanium, purity preferably 99.95%, thickness is at most micron order.
A kind of processing method of described oil oil separation titanium foil, it is characterised in that：Step（1）In, first using acetone
Solution is cleaned by ultrasonic titanium foil substrate surface, removes the organic impurities on surface；It is cleaned by ultrasonic titanium foil substrate surface with ethanol solution again,
Removal acetone soln；Finally it is cleaned by ultrasonic titanium foil substrate surface with deionized water, removes ethanol solution, obtains clean titanium foil base
Material.
A kind of processing method of described oil oil separation titanium foil, it is characterised in that：Step（2）In, in femto-second laser
A length of 800 nm of cardiac wave, pulsewidth is 104fs, and repetition rate is 1 KHz, and the machined parameters of femto-second laser are：Sweep speed is
70mm/s, Kong Yukong at intervals of 60 μm, laser power is 50 mw, and mark number of times is 200 times.
A kind of processing method of described oil oil separation titanium foil, it is characterised in that：Step（3）In, entered using silicon fluoride
Row fluorination treatment.
A kind of application method of oil oil separation titanium foil, it is characterised in that：For the oil oil of immiscible organic solvent
Separate.
A kind of application method of described oil oil separation titanium foil, it is characterised in that：It is preferred for 1,2- dichloroethanes, first
The oil oil of acid amides is separated.
The present invention is carried out clearly to titanium foil substrate surface impurity successively with acetone soln, ethanol solution and deionized water first
Wash, recycle femtosecond laser directly to carry out micro-drilling processing in titanium foil substrate surface, then carry out fluorination treatment, reach preferably
Surface effect, the titanium foil obtained after processing can realize that the oil oil of organic solvent is separated.
Processing method of the present invention directly carries out Drilling operation using femtosecond laser, is a kind of high efficiency, a high-precision step
Formula processing method, the heat affected area of its process is small, and machining accuracy is high, high peak strength and accurate and less damage
Hinder threshold value, and green pollution-free, this technology has very in terms of the micro nano structure with specific function is formed
Big application prospect.
Brief description of the drawings
Fig. 1 is titanium foil structural representation in the present invention.
Specific embodiment
As shown in figure 1, a kind of oil oil separations titanium foil, including titanium foil base material 1, the Surface Machining of titanium foil base material 1 has micropore gust
Row, at most in micron order, the surface of titanium foil base material 1 is by micro- at each after fluorination treatment in the aperture of each micropore 2 in microwell array
Nanostructured is formed with around hole.
A kind of processing method of oil oil separation titanium foil, comprises the following steps：
（1）, cleaning titanium foil substrate surface, obtain clean titanium foil base material to remove organic impurities；
（2）, using femto-second laser to step（1）Titanium foil substrate surface after cleaning carries out micro-drilling processing, makes titanium foil base material
Surface forms microwell array, and micropore inner material is sputtered and is deposited in around micropore and forms coarse knot in micro-drilling process
Structure；
（3）, by step（2）The titanium foil substrate surface for having coarse structure after processing around micropore carries out fluorination treatment, by fluorination
Treatment carries out low-surface-energy modification to titanium foil substrate surface, obtains the titanium foil substrate surface of low-surface-energy.
Titanium foil base material select industrially pure titanium of the concentration more than 99.9%, purity preferably 99.95%, thickness is at most micron
Level.
Step（1）In, titanium foil substrate surface is cleaned by ultrasonic using acetone soln first, remove the organic impurities on surface；Again
It is cleaned by ultrasonic titanium foil substrate surface with ethanol solution, removes acetone soln；Finally it is cleaned by ultrasonic titanium foil base material table with deionized water
Face, removes ethanol solution, obtains clean titanium foil base material.
Step（2）In, femto-second laser centre wavelength is 800 nm, and pulsewidth is 104fs, and repetition rate is 1 KHz, femtosecond
The machined parameters of laser are：Sweep speed is 70mm/s, Kong Yukong at intervals of 60 μm, laser power is 50 mw, mark time
Number is 200 times.
Step（3）In, fluorination treatment is carried out using silicon fluoride.
With the development of science and technology femtosecond laser technology is more and more ripe, it with pulse it is short, central peak is high, power is big, point
The characteristics of resolution is high, has obtained extensive popularization and application in micro-nano technology field.Femtosecond laser is limited by material simultaneously
It is smaller, micro-nano structure, such as glass, metal, polymer, transparent material etc. can be processed on multiple material.By oil
Water separate and river thunder academician's achievement in research inspiration, the present invention using femtosecond laser micro-nano technology method, in substrate surface plus
Work goes out microwell array.During processing, because the ablation of laser is acted on, the material inside micropore can be sputtered and, in hole
Around pile up so as to produce coarse structure, then modified by the low-surface-energy of silicon fluoride, to different organic solvents（1,2-
Dichloroethanes, formamide）Opposite imbibition characteristic just can be produced.
A kind of application method of oil oil separation titanium foil, the oil oil for immiscible organic solvent is separated.
A kind of application method of oil oil separation titanium foil, is preferred for the oil oil separation of 1,2- dichloroethanes, formamide.
With organic solvent 1, as a example by 2- dichloroethanes, formamide, the titanium foil that present invention processing is obtained is placed on contact angle and is surveyed
Measure on the platform of instrument, 1,2- of measurement dichloroethanes, the contact angle of formamide.Through measurement, the microwell array after fluorination is to 1,2- bis-
The contact angle of chloroethanes is 0 °, shows the effect of excess of export oleophylic；Contact angle to formamide is 152 °, shows superoleophobic effect
Really（Meanwhile, during contact angle is measured, it is found that formamide drop is difficult to be bonded at machining area, show surface to formamide
Adhesion it is relatively low）.Oil droplet used is 1,2- dichloroethanes and formamide, and it is 98.96 and 45.04 that molecular weight is respectively,
It is colourless transparent liquid.It can be seen that, the titanium foil obtained after being processed using the inventive method, to 1,2- dichloroethanes, formamide performance
When going out close and distant opposite characteristic, it is possible to reach oily separate effect.
Claims (8)
1. a kind of oil oil separation titanium foil, it is characterised in that：Including titanium foil base material, titanium foil substrate surface is machined with microwell array,
The aperture of each micropore is at most in micron order in microwell array, and coarse structure is formed around micropore, eventually passes fluorination
The surface of low-surface-energy is obtained after treatment.
2. a kind of processing method of oil oil separation titanium foil, it is characterised in that：Comprise the following steps：
（1）, cleaning titanium foil substrate surface, obtain clean titanium foil base material to remove organic impurities；
（2）, using femto-second laser to step（1）Titanium foil substrate surface after cleaning carries out micro-drilling processing, makes titanium foil base material
Surface forms microwell array, and micropore inner material is sputtered and is deposited in around micropore and forms coarse knot in micro-drilling process
Structure；
（3）, by step（2）The titanium foil substrate surface for having coarse structure after processing around micropore carries out fluorination treatment, by fluorination
Treatment carries out low-surface-energy modification to titanium foil substrate surface, obtains the titanium foil substrate surface of low-surface-energy.
3. the processing method of a kind of oil oil separation titanium foil according to claim 2, it is characterised in that：The titanium foil base material
Industrially pure titanium from concentration more than 99.9%, purity preferably 99.95%, thickness is at most micron order.
4. the processing method of a kind of oil oil separation titanium foil according to claim 2, it is characterised in that：Step（1）In, it is first
Titanium foil substrate surface is first cleaned by ultrasonic using acetone soln, the organic impurities on surface is removed；It is cleaned by ultrasonic titanium with ethanol solution again
Paper tinsel base material surface, removes acetone soln；Finally it is cleaned by ultrasonic titanium foil substrate surface with deionized water, removes ethanol solution, obtains
Clean titanium foil base material.
5. the processing method of a kind of oil oil separation titanium foil according to claim 2, it is characterised in that：Step（2）In, fly
Second laser center wavelength is 800 nm, and pulsewidth is 104fs, and repetition rate is 1 KHz, and the machined parameters of femto-second laser are：
Sweep speed is 70mm/s, Kong Yukong at intervals of 60 μm, laser power is 50 mw, and mark number of times is 200 times.
6. the processing method of a kind of oil oil separation titanium foil according to claim 2, it is characterised in that：Step（3）In, adopt
Fluorination treatment is carried out with silicon fluoride.
7. a kind of application method of oil oil separation titanium foil, it is characterised in that：For the oil of immiscible organic solvent
From.
8. the application method of a kind of oil oil separation titanium foil according to claim 7, it is characterised in that：It is preferred for 1,2-
Dichloroethanes, the oil oil of formamide are separated.
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| CN201710338806.5A CN106924997A (en) | 2017-05-15 | 2017-05-15 | A kind of oil oil separation titanium foil and its processing method and application method |
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| CN201710338806.5A CN106924997A (en) | 2017-05-15 | 2017-05-15 | A kind of oil oil separation titanium foil and its processing method and application method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744996A (en) * | 2018-05-24 | 2018-11-06 | 广东工业大学 | A kind of water-oil separating filter membrane and preparation method thereof with titanium dioxide surface |
| CN112130439A (en) * | 2020-09-25 | 2020-12-25 | 北京理工大学 | Variable anti-counterfeiting computer hologram prepared based on femtosecond laser |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2017
- 2017-05-15 CN CN201710338806.5A patent/CN106924997A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Non-Patent Citations (2)
| Title |
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| 陈志: "《高性能微/纳米结构不粘薄膜的制备及研究》", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技Ⅰ辑》 * |
| 黄安文主编、科学时报编: "《创新的记录 振邦杯2004年中国十大科技进展》", 31 May 2005, 世界知识出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744996A (en) * | 2018-05-24 | 2018-11-06 | 广东工业大学 | A kind of water-oil separating filter membrane and preparation method thereof with titanium dioxide surface |
| CN108744996B (en) * | 2018-05-24 | 2022-01-25 | 广东工业大学 | Oil-water separation filtering membrane with titanium dioxide surface and preparation method thereof |
| CN112130439A (en) * | 2020-09-25 | 2020-12-25 | 北京理工大学 | Variable anti-counterfeiting computer hologram prepared based on femtosecond laser |
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