CN105080365B - Integrated micro-nano filtering membrane and production method thereof - Google Patents
Integrated micro-nano filtering membrane and production method thereof Download PDFInfo
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- CN105080365B CN105080365B CN201510556423.6A CN201510556423A CN105080365B CN 105080365 B CN105080365 B CN 105080365B CN 201510556423 A CN201510556423 A CN 201510556423A CN 105080365 B CN105080365 B CN 105080365B
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Abstract
The invention discloses an integrated micro-nano filtering membrane and a production method thereof. The micro-nano filtering membrane adopts an integrated two-layer membrane structure and comprises a base-layer porous support membrane and a filter element membrane which is deposited on the porous support membrane and has micro-nano through holes, wherein a micron-scale first hole array is arranged on the porous support membrane; a second hole array is arranged on the filter element membrane; holes in the second hole array are arranged in corresponding holes in the first hole array; diameters of the holes in the second hole array are smaller than those of the holes in the first hole array. Forming processing of the micro-nano filtering membrane is performed by means of the holes of the base-layer porous support membrane and external disturbance, so that the filtering membrane has size-controllable micro or nano filter through holes; the prepared filtering membrane can filter various micron-scale or nano-scale particles conveniently.
Description
【Technical field】
The invention belongs to technical field of micro and nano fabrication, more particularly to a kind of integral type micro-nano filter membrane and its manufacture method.
【Background technology】
The whole world increasingly serious environmental pollution such as air pollution, pollution of waterhead etc., make needs of the people to various filter membranes
It is increasing, can especially filter the filter membrane of micron to nanoscale particle.It is main that current various filter membranes are present
Problem is to reduce because the filter bores of filter membrane are not clear opening and seriously the filtration flux of filter membrane.
【The content of the invention】
It is an object of the invention to provide a kind of integral type micro-nano filter membrane and its manufacture method, the filter membrane is integral type
Two-layer film configuration, including the porous support membrane and deposition of bottom thereon with micro-nano clear opening filter core film.
To achieve these goals, the present invention takes following technical scheme：
Integral type micro-nano filter membrane, is integral type two-layer film configuration, including the porous support membrane and deposition of bottom is in porous
Filter core film with micro-nano clear opening on support membrane；There is the pores array of micron order first on the porous support membrane；The filter
There is the second pores array on core film；Hole in second pores array is arranged at corresponding hole in the first pores array
In；Hole diameter of the hole diameter of second pores array less than the first pores array.
Further, the hole diameter of first pores array is 10um -500um.
Further, the hole diameter of the second pores array is 0.1um -2.0um.
Further, the material of filter core film is fluoropolymer resin.
Further, the fluoropolymer resin is for the thermohardening type resin or photocurable resin of liquid under normal temperature.
Further, the fluoropolymer resin is that thermohardening type polyimides, silicon rubber or ultraviolet curing type polyamides are sub-
Amine.
Further, porous support membrane is polypropylene non-woven fabric, nylon or stainless steel porous web.
Further, the material of porous support membrane is polymer, inorganic metal or nonmetallic.
Further, the method that polymer resin solution is coated to porous support membrane surface is applied using submergence czochralski method
Glue, centrifugation paving glue, glue spraying or method for printing screen.
Further, fluoropolymer resin is thermohardening type polyimides PI, silicon rubber PDMS or ultraviolet curing type polyamides
Imines PI.
The preparation method of integral type micro-nano filter membrane, comprises the following steps：
(1) will clean in the surface of the porous support membrane with micron order pores array and hole clean；
(2) polymer resin solution is coated to into porous support membrane surface, and is formed in the hole of porous support membrane equal
Even fluoropolymer resin liquid film；
(3) external disturbance is adopted so that the fluoropolymer resin liquid-sheet disintegration in the hole of porous support membrane；
(4) the fluoropolymer resin liquid film of rupture further shrinks in the presence of surface tension, finally heart-shaped in liquid film
Into micron or the hole of nanoscale；
(5) repeat step (2)-(4), the bore hole size of fluoropolymer resin liquid film is constantly reduced, until meeting filter membrane
The dimensional requirement of hole, the fluoropolymer resin liquid film for now obtaining is filter core film；
(6) the filter core film with micron or nanoscale hole is solidified and is integrally formed with porous support membrane, obtain one
Body declines Nano Filtration film.
Further, there is the pores array of micron order first on the porous support membrane；Have second on the filter core film
Pores array；Hole in second pores array is arranged in the first pores array in corresponding hole；Second hole
Hole diameter of the hole diameter of hole array less than the first pores array.
Further, the hole diameter of first pores array is 10um -500um；The hole of the second pores array is straight
Footpath is 0.1um -2.0um.
Further, fluoropolymer resin is liquid, and its viscosity can be 5mPa.S -50000mPa.S at 25 DEG C.
Further, the disturbance is for vibration or dries.
Further, Oscillation Amplitude is 1mm -5mm, time 5min -30min；The wind speed of air blowing is 0.01m/S -10m/
S, time 5S -60S.
Relative to prior art, the invention has the advantages that：
The present invention proposes integral type micro-nano filter membrane and its manufacture method, using the hole using underlying porous support membrane
And additional disturbance is carrying out micro-nano filter membrane forming, filter membrane is set to have the controllable micron of size or nanofiltration straight
Through hole；Prepared filter membrane can easily filter micron order or nano level various particles.
【Specific embodiment】
A kind of integral type micro-nano filter membrane of the present invention, is two-layer film configuration, including the porous support membrane and deposition of bottom in
There is thereon the filter core film of micro-nano clear opening.Preparation method is comprised the following steps：
(1) by the porous support membrane with micron order pores array (such as commercially available polypropylene non-woven fabric, nylon or stainless steel
Porous web, its material can be polymer, inorganic metal or nonmetallic, and hole diameter can be 10um -500um) it is sequentially placed into third
In the solution such as ketone, ethanol, deionized water (being commercially available), (commercially available supersonic cleaning machine) is carried out clearly to it by way of ultrasound
Wash, every time cleaning about 10min, make clean in the support membrane surface and hole；
(2) using submergence Dip coating, centrifugation paving glue, glue spraying or method for printing screen by polymer resin solution (such as
Commercially available thermohardening type polyimides PI, silicon rubber PDMS or ultraviolet curing type polyimides PI；For different filter membrane holes
The dimensional requirement in hole, the fluoropolymer resin for adopting for normal temperature under for liquid thermohardening type resin or photocurable resin, 25
Its viscosity can be 5mPa.S -50000mPa.S at DEG C；The hole diameter of porous support membrane is bigger, the fluoropolymer resin for being adopted
Viscosity it is bigger) be coated to porous support membrane (such as polypropylene non-woven fabric, nylon or stainless steel porous web) surface, and in porous
Uniform fluoropolymer resin liquid film is formed in the hole of support film；
(3) adopt external disturbance, such as vibration (such as commercially available shake table, Oscillation Amplitude can be 1mm -5mm, time 5min -
30min) or mode such as (such as commercially available hair-dryer, wind speed can be 0.01m/S -10m/S, time 5S -60S) of blowing so that many
Fluoropolymer resin liquid-sheet disintegration in the hole of hole support membrane.
(4) the fluoropolymer resin liquid film of rupture further shrinks in the presence of surface tension, finally heart-shaped in liquid film
Into micron or the hole of nanoscale (aperture can be 0.5um -2.5um).
(5) repeat step (2)-(4), can constantly reduce the bore hole size of fluoropolymer resin liquid film so as to meet filter
The dimensional requirement (aperture can be 0.1um -2.0um) in fenestra hole, the fluoropolymer resin liquid film for now obtaining is filter core film.
(6) using heating, (thermohardening type polyimides PI, heating-up temperature is 180 DEG C, time 40min；Silicon rubber PDMS adds
Hot temperature is 150 DEG C, time 90min) or ultraviolet lighting (ultraviolet curing type polyimides PI, ultraviolet wavelength 300nm-
365nm, time 1min -3min) etc. mode, solidify filter core film with micron or nanoscale hole and and open support
Film is integrally formed.Thus the micron or nano aperture array for meeting filter membrane bore hole size requirement can be formed on support membrane, so as to
Complete the making of integral type micro-nano filter membrane.
Claims (3)
1. integral type micro-nano filter membrane, it is characterised in that for integral type two-layer film configuration, including the porous support membrane of bottom and molten
Spread on the filter core film with micro-nano clear opening on porous support membrane；There is micron order the first hole battle array on the porous support membrane
Row；There is the second pores array on the filter core film；Hole in second pores array is located at right in the first pores array
In the hole answered；Hole diameter of the hole diameter of second pores array less than the first pores array；It is described integrally to decline
Nano Filtration film is prepared by following steps：
(1) will clean in the surface of the porous support membrane with micron order pores array and hole clean；
(2) polymer resin solution is coated to into porous support membrane surface, and is formed in the hole of porous support membrane uniform
Fluoropolymer resin liquid film；
(3) external disturbance is adopted so that the fluoropolymer resin liquid-sheet disintegration in the hole of porous support membrane；
(4) the fluoropolymer resin liquid film of rupture further shrinks in the presence of surface tension, is finally centrally formed in liquid film micro-
The hole of rice or nanoscale；
(5) repeat step (2)-(4), the bore hole size of fluoropolymer resin liquid film is constantly reduced, until meeting filter membrane hole
Dimensional requirement, the fluoropolymer resin liquid film for now obtaining is filter core film；
(6) the filter core film with micron or nanoscale hole is solidified and is integrally formed with porous support membrane, obtain integral type
Micro-nano filter membrane；
Fluoropolymer resin is liquid, and its viscosity can be 5mPa.S -50000mPa.S at 25 DEG C；
The disturbance is for vibration or dries.
2. integral type micro-nano filter membrane according to claim 1, it is characterised in that the hole of first pores array is straight
Footpath is 10um -500um；The hole diameter of the second pores array is 0.1um -2.0um.
3. the preparation method of integral type micro-nano filter membrane, it is characterised in that comprise the following steps：
(1) will clean in the surface of the porous support membrane with micron order pores array and hole clean；
(2) polymer resin solution is coated to into porous support membrane surface, and is formed in the hole of porous support membrane uniform
Fluoropolymer resin liquid film；
(3) external disturbance is adopted so that the fluoropolymer resin liquid-sheet disintegration in the hole of porous support membrane；
(4) the fluoropolymer resin liquid film of rupture further shrinks in the presence of surface tension, is finally centrally formed in liquid film micro-
The hole of rice or nanoscale；
(5) repeat step (2)-(4), the bore hole size of fluoropolymer resin liquid film is constantly reduced, until meeting filter membrane hole
Dimensional requirement, the fluoropolymer resin liquid film for now obtaining is filter core film；
(6) the filter core film with micron or nanoscale hole is solidified and is integrally formed with porous support membrane, obtain integral type
Micro-nano filter membrane；
There is the pores array of micron order first on the porous support membrane；There is the second pores array on the filter core film；It is described
Hole in second pores array is arranged in the first pores array in corresponding hole；The hole of second pores array is straight
Hole diameter of the footpath less than the first pores array；
The hole diameter of first pores array is 10um -500um；The hole diameter of the second pores array be 0.1um-
2.0um；
Fluoropolymer resin is liquid, and its viscosity can be 5mPa.S -50000mPa.S at 25 DEG C；
The disturbance is for vibration or dries.
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| CN106669427B (en) * | 2016-11-18 | 2019-12-10 | 江苏坤奕环境工程有限公司 | Integrated wear-resistant, crystal-resistant and corrosion-resistant cross-flow microfiltration membrane element |
| CN111002600B (en) * | 2019-12-18 | 2021-06-25 | 香港中文大学（深圳） | Suspension closed hole array structure, preparation method, application and preparation device thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007137821A1 (en) * | 2006-05-30 | 2007-12-06 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Production of micro- and nanopore mass arrangements by self-organization of nanoparticles and sublimation technology |
| CN101422701A (en) * | 2008-11-25 | 2009-05-06 | 北京仁创科技集团有限公司 | Filter unit and manufacture method thereof and water treatment device |
| CN102350094A (en) * | 2011-09-05 | 2012-02-15 | 北京航空航天大学 | Oil and water separator based on micron-nano hiberarchy net membrane and preparation and application method thereof |
| CN102500245A (en) * | 2011-12-01 | 2012-06-20 | 西北有色金属研究院 | Preparation method of metal-base ceramic composite filter membrane |
| CN103263787A (en) * | 2013-05-27 | 2013-08-28 | 中国科学院化学研究所 | Film with oil-water separation tapered needle array having underwater oleophilic property on surface as well as preparation method and use of film |
| CN104474911A (en) * | 2014-12-30 | 2015-04-01 | 西安建筑科技大学 | Preparation method of micro-nanofiltration membrane |
| CN104555900A (en) * | 2014-12-30 | 2015-04-29 | 西安建筑科技大学 | Micro-nano composite structure template and production method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013039971A2 (en) * | 2011-09-12 | 2013-03-21 | Celgard Llc | Improved contactors, cartridges, components, systems, and related methods |
-
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007137821A1 (en) * | 2006-05-30 | 2007-12-06 | MAX-PLANCK-Gesellschaft zur Förderung der Wissenschaften e.V. | Production of micro- and nanopore mass arrangements by self-organization of nanoparticles and sublimation technology |
| CN101422701A (en) * | 2008-11-25 | 2009-05-06 | 北京仁创科技集团有限公司 | Filter unit and manufacture method thereof and water treatment device |
| CN102350094A (en) * | 2011-09-05 | 2012-02-15 | 北京航空航天大学 | Oil and water separator based on micron-nano hiberarchy net membrane and preparation and application method thereof |
| CN102500245A (en) * | 2011-12-01 | 2012-06-20 | 西北有色金属研究院 | Preparation method of metal-base ceramic composite filter membrane |
| CN103263787A (en) * | 2013-05-27 | 2013-08-28 | 中国科学院化学研究所 | Film with oil-water separation tapered needle array having underwater oleophilic property on surface as well as preparation method and use of film |
| CN104474911A (en) * | 2014-12-30 | 2015-04-01 | 西安建筑科技大学 | Preparation method of micro-nanofiltration membrane |
| CN104555900A (en) * | 2014-12-30 | 2015-04-29 | 西安建筑科技大学 | Micro-nano composite structure template and production method thereof |
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