CN114259889A - A kind of emulsion separation membrane and its preparation method and use method - Google Patents
A kind of emulsion separation membrane and its preparation method and use method Download PDFInfo
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- CN114259889A CN114259889A CN202111542199.7A CN202111542199A CN114259889A CN 114259889 A CN114259889 A CN 114259889A CN 202111542199 A CN202111542199 A CN 202111542199A CN 114259889 A CN114259889 A CN 114259889A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/72—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 and B01D71/701 - B01D71/702
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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
- B01D17/08—Thickening liquid suspensions by filtration
- B01D17/085—Thickening liquid suspensions by filtration with membranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0002—Organic membrane manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/02—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor characterised by their properties
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Abstract
The invention relates to an emulsion separating membrane and a preparation method and a using method thereof, wherein the emulsion separating membrane comprises a fabric and a coating coated on the surface of the fabric, and the preparation method comprises the preparation of S1 and PMMA-co-PDEAEMA polymer; s2, preparing a polymer solution; s3, preparing polymer film wrapping yarns; s4, manufacturing an emulsion separation membrane. The use method is that when the emulsion is in a water-in-oil state, the oil-wet emulsion separation membrane is used for separation; when the emulsion is in an oil-in-water state, the oil-wet emulsion separation membrane is converted into a water-wet emulsion separation membrane, and then separation is performed.
Description
Technical Field
The invention relates to an emulsion separation membrane and a preparation method and a using method thereof.
Background
The emulsion separation membrane is a membrane layer for separating water and oil in emulsion, most of the existing emulsion separation membranes have single wettability, such as hydrophilicity or hydrophobicity, and can only be used for separating water-in-oil emulsion or oil-in-water emulsion, and one membrane is difficult to separate the water-in-oil emulsion and the oil-in-water emulsion.
Moreover, the existing emulsion separation membrane is easily polluted by grease, and the membrane needs to be detached for cleaning and then assembled, so that a large amount of manpower and material resources are wasted.
Disclosure of Invention
The invention firstly solves the technical problems that: an emulsion separation membrane is provided that is capable of switching back and forth between oil/water wettabilities.
In order to solve the technical problems, the invention adopts the technical scheme that: an emulsion separation membrane comprises a fabric and a coating coated on the surface of the fabric, wherein the coating is a switchable oil-water wettability coating.
Preferably, the fabric is woven by a loom, and the coating is pre-coated on the surface of the yarn and completely covers the surface of the yarn.
The invention further aims to solve the technical problems that: a method for preparing the above emulsion separation membrane is provided.
In order to solve the technical problems, the invention adopts the technical scheme that: the method for preparing the emulsion separation membrane comprises the following specific steps:
s1, preparation of PMMA-co-PDEAEMA Polymer: dissolving DEAEMA monomer and MMA monomer in tetrahydrofuran according to the mass ratio of 1: 0.5-2, adding initiator, heating and stirring in a nitrogen atmosphere for reaction for 24 hours at the heating temperature of 65-75 ℃, adding excessive n-hexane to precipitate polymer, taking out the precipitated polymer, and drying in an oven;
s2, preparation of polymer solution: dissolving the polymer prepared in the step S1 in tetrahydrofuran to prepare a polymer solution with the mass fraction of 10 wt%;
s3, preparation of polymer film covered yarn: uniformly coating the polymer solution prepared in the step S2 on the surface of the yarn, and leading the yarn to enter a drying room at 70 ℃ for heat treatment for 30min to obtain polymer film coated yarn;
s4, production of emulsion separation membrane: the polymer film-covered yarn obtained in step S3 was woven into a fabric by a loom to obtain an oil-wet emulsion separation membrane.
As a preferred scheme, the method for preparing the emulsion separation membrane also comprises the following specific steps:
s5, wettability switching: when necessary, the emulsion separation membrane prepared in step S4 is placed in deionized water and CO is used2Bubbling for 10-20 min to prepare a water-wetting emulsion separation membrane; and when needed, placing the emulsion separation membrane with water wettability into deionized water, bubbling with nitrogen or directly heating for 10-20 min, and converting the emulsion separation membrane with water wettability into the emulsion separation membrane with oil wettability.
The invention further solves the technical problems that: provides a method for using the emulsion separation membrane to separate water-in-oil emulsion and oil-in-water emulsion.
In order to solve the technical problems, the invention adopts the technical scheme that: separating oil and water emulsion by using the emulsion separation membrane, and separating by using an oil-wetting emulsion separation membrane when the emulsion is in a water-in-oil state; separating oil-wet emulsion with CO when the emulsion is in oil-in-water state2Bubbling for 10-20 min to convert the oil-wet emulsion separation membrane into a water-wet emulsion separation membrane, and then separating; when the emulsion in the water-in-oil state needs to be separated again, the water-wetting emulsion separation membrane is placed in deionized water, nitrogen is used for bubbling or the water-wetting emulsion separation membrane is directly heated for 10-20 min, the water-wetting emulsion separation membrane is converted into the oil-wetting emulsion separation membrane again, and then the emulsion in the water-in-oil state is separated.
The invention has the beneficial effects that: the emulsion separation membrane can switch oil/water wettability, and can be used for water-in-oil emulsion separation and oil-in-water emulsion separation.
The emulsion separation membrane has self-cleaning capability, and under the alternate stimulation of carbon dioxide and nitrogen, the tertiary amine group in DEAEMA is continuously switched between water wettability and water removal wettability, so that oil stains can be effectively eliminated, and self-cleaning is realized.
The emulsion separation membrane has omnibearing equivalent flux, the fabric has the advantages of uniform pores and adjustable gaps, the pore size is uniform, the flux and the separation efficiency of each part of the fabric membrane are almost the same, and the separation of the nano emulsion can be realized by adjusting the density of the fabric.
The emulsion separation membrane has strong durability, and because the yarn is adopted to provide mechanical strength for the substrate, the coating is sleeved on the surface of the yarn in a closed tubular polymer form, has stronger adhesive force than a separation membrane modified by a graft polymer, and is more stable and not easy to fall off.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic view of the structure of an emulsion separation membrane according to the present invention;
in fig. 1:1. fabric, 2, coating, 101, yarn.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
an emulsion separation membrane shown in fig. 1 comprises a fabric 1 and a coating 2 coated on the surface of the fabric 1, wherein the coating 2 is a switchable oil-water wettability coating, and in this embodiment, the coating is specifically a PMMA-co-PDEAEMA polymer coating. The chemical structural formula of the coating 2 is
In the present embodiment, the fabric 1 is woven by the yarn 101 through a weaving machine, and the coating layer 2 is applied to the surface of the yarn 101 in advance and completely covers the surface of the yarn 101.
In reality, the fabric 1 may be a non-woven fabric, such as a non-woven fabric, a foamed plastic fabric, a cast film fabric, etc., as long as the fabric 1 has pores and is permeable to oil or water.
In reality, the coating 2 can also be applied directly to the finished fabric 1, either on one or both sides.
Example 2:
the method for preparing the emulsion separation membrane is characterized by comprising the following specific steps of:
s1, preparation of PMMA-co-PDEAEMA Polymer: dissolving DEAEMA monomer and MMA monomer in tetrahydrofuran according to the mass ratio of 1:0.5, adding initiator, heating and stirring in a nitrogen atmosphere for reaction for 24 hours at the heating temperature of 65 ℃, adding excessive n-hexane to precipitate polymer, taking out the precipitated polymer, and drying in an oven;
s2, preparation of polymer solution: dissolving the polymer prepared in the step S1 in tetrahydrofuran to prepare a polymer solution with the mass fraction of 10 wt%;
s3, preparation of polymer film covered yarn: uniformly coating the polymer solution prepared in the step S2 on the surface of the yarn to form a coating, and guiding the yarn to enter a drying room at 70 ℃ for heat treatment for 30min to obtain polymer film coated yarn; the chemical structural formula of the coating is
S4, production of emulsion separation membrane: the polymer film-covered yarn obtained in step S3 was woven into a fabric by a loom to obtain an oil-wet emulsion separation membrane.
S5, wettability switching: when necessary, the emulsion separation membrane prepared in step S4 is placed in deionized water and CO is used2Bubbling for 10min to obtain a water-wetting emulsion separation membrane; at this time, the chemical structure of the coating layer on the surface of the yarn is changed
If necessary, the water-wetting emulsion separation membrane can still be placed in deionized water, nitrogen is used for bubbling or the water-wetting emulsion separation membrane is directly heated for 10min, and the water-wetting emulsion separation membrane is converted into the oil-wetting emulsion separation membrane.
The emulsion separating membrane is used for separating oil and water emulsion, and when the emulsion is in a water-in-oil state, the oil is used for moisteningSeparating by using an emulsion separation membrane, wherein the separation performance test data is shown in table 1; separating oil-wet emulsion with CO when the emulsion is in oil-in-water state2Bubbling for 10min to convert the oil-wet emulsion separation membrane into a water-wet emulsion separation membrane, and then separating, wherein the separation performance test data is shown in table 1; when the emulsion in the water-in-oil state needs to be separated again, the water-wetting emulsion separation membrane is placed in deionized water, nitrogen is used for bubbling or the water-wetting emulsion separation membrane is directly heated for 10min, so that the water-wetting emulsion separation membrane is converted into the oil-wetting emulsion separation membrane again, and then the emulsion in the water-in-oil state is separated.
Example 3:
the method for preparing the emulsion separation membrane is characterized by comprising the following specific steps of:
s1, preparation of PMMA-co-PDEAEMA Polymer: dissolving DEAEMA monomer and MMA monomer in tetrahydrofuran according to the mass ratio of 1:1, adding initiator, heating and stirring in a nitrogen atmosphere for reaction for 24 hours at the heating temperature of 70 ℃, adding excessive n-hexane to precipitate polymer, taking out the precipitated polymer, and drying in an oven;
s2, preparation of polymer solution: dissolving the polymer prepared in the step S1 in tetrahydrofuran to prepare a polymer solution with the mass fraction of 10 wt%;
s3, preparation of polymer film covered yarn: uniformly coating the polymer solution prepared in the step S2 on the surface of the yarn, and leading the yarn to enter a drying room at 70 ℃ for heat treatment for 30min to obtain polymer film coated yarn;
s4, production of emulsion separation membrane: the polymer film-covered yarn obtained in step S3 was woven into a fabric by a loom to obtain an oil-wet emulsion separation membrane.
S5, wettability switching: when necessary, the emulsion separation membrane prepared in step S4 is placed in deionized water and CO is used2Bubbling for 10min to obtain a water-wetting emulsion separation membrane; and when needed, placing the water-wetting emulsion separation membrane into deionized water, bubbling with nitrogen or directly heating for 10min, and converting the water-wetting emulsion separation membrane into the oil-wetting emulsion separation membrane.
The emulsion separation membrane is used for separating oil and water emulsion, when the emulsion is in a water-in-oil state, the oil-wetting emulsion separation membrane is used for separating, and the separation performance test data is shown in table 1; separating oil-wet emulsion with CO when the emulsion is in oil-in-water state2Bubbling for 10min to convert the oil-wet emulsion separation membrane into a water-wet emulsion separation membrane, and then separating, wherein the separation performance test data is shown in table 1; when the emulsion in the water-in-oil state needs to be separated again, the water-wetting emulsion separation membrane is placed in deionized water, nitrogen is used for bubbling or the water-wetting emulsion separation membrane is directly heated for 10min, so that the water-wetting emulsion separation membrane is converted into the oil-wetting emulsion separation membrane again, and then the emulsion in the water-in-oil state is separated.
Example 4:
the method for preparing the emulsion separation membrane is characterized by comprising the following specific steps of:
s1, preparation of PMMA-co-PDEAEMA Polymer: dissolving DEAEMA monomer and MMA monomer in tetrahydrofuran according to the mass ratio of 1:1.5, adding initiator, heating and stirring in a nitrogen atmosphere for reaction for 24 hours at the heating temperature of 75 ℃, adding excessive n-hexane to precipitate polymer, taking out the precipitated polymer, and drying in an oven;
s2, preparation of polymer solution: dissolving the polymer prepared in the step S1 in tetrahydrofuran to prepare a polymer solution with the mass fraction of 10 wt%;
s3, preparation of polymer film covered yarn: uniformly coating the polymer solution prepared in the step S2 on the surface of the yarn, and leading the yarn to enter a drying room at 70 ℃ for heat treatment for 30min to obtain polymer film coated yarn;
s4, production of emulsion separation membrane: the polymer film-covered yarn obtained in step S3 was woven into a fabric by a loom to obtain an oil-wet emulsion separation membrane.
S5, wettability switching: when necessary, the emulsion separation membrane prepared in step S4 is placed in deionized water and CO is used2Bubbling for 20min to obtain a water-wetting emulsion separation membrane; if necessary, the water-wetting emulsion separation membrane is placed in deionized water, and nitrogen is used for bubbling or direct additionHeating for 20min, and converting the water-wetting emulsion separation membrane into an oil-wetting emulsion separation membrane.
The emulsion separation membrane is used for separating oil and water emulsion, when the emulsion is in a water-in-oil state, the oil-wetting emulsion separation membrane is used for separating, and the separation performance test data is shown in table 1; separating oil-wet emulsion with CO when the emulsion is in oil-in-water state2Bubbling for 20min to convert the oil-wet emulsion separation membrane into a water-wet emulsion separation membrane, and then separating, wherein the separation performance test data is shown in table 1; when the emulsion in the water-in-oil state needs to be separated again, the water-wetting emulsion separation membrane is placed in deionized water, nitrogen is used for bubbling or the water-wetting emulsion separation membrane is directly heated for 20min, so that the water-wetting emulsion separation membrane is converted into the oil-wetting emulsion separation membrane again, and then the emulsion in the water-in-oil state is separated.
Example 5:
the method for preparing the emulsion separation membrane is characterized by comprising the following specific steps of:
s1, preparation of PMMA-co-PDEAEMA Polymer: dissolving DEAEMA monomer and MMA monomer in tetrahydrofuran according to the mass ratio of 1:2, adding initiator, heating and stirring in a nitrogen atmosphere for reaction for 24 hours, heating to 68 ℃, adding excessive n-hexane to precipitate polymer, taking out the precipitated polymer, and drying in an oven;
s2, preparation of polymer solution: dissolving the polymer prepared in the step S1 in tetrahydrofuran to prepare a polymer solution with the mass fraction of 10 wt%;
s3, preparation of polymer film covered yarn: uniformly coating the polymer solution prepared in the step S2 on the surface of the yarn, and leading the yarn to enter a drying room at 70 ℃ for heat treatment for 30min to obtain polymer film coated yarn;
s4, production of emulsion separation membrane: the polymer film-covered yarn obtained in step S3 was woven into a fabric by a loom to obtain an oil-wet emulsion separation membrane.
S5, wettability switching: when necessary, the emulsion separation membrane prepared in step S4 is placed in deionized water and CO is used2Bubbling for 20min to obtain water-wettable emulsionA liquid separation membrane; and when needed, placing the water-wetting emulsion separation membrane into deionized water, bubbling with nitrogen or directly heating for 20min, and converting the water-wetting emulsion separation membrane into the oil-wetting emulsion separation membrane.
The emulsion separation membrane is used for separating oil and water emulsion, when the emulsion is in a water-in-oil state, the oil-wetting emulsion separation membrane is used for separating, and the separation performance test data is shown in table 1; separating oil-wet emulsion with CO when the emulsion is in oil-in-water state2Bubbling for 20min to convert the oil-wet emulsion separation membrane into a water-wet emulsion separation membrane, and then separating, wherein the separation performance test data is shown in table 1; when the emulsion in the water-in-oil state needs to be separated again, the water-wetting emulsion separation membrane is placed in deionized water, nitrogen is used for bubbling or the water-wetting emulsion separation membrane is directly heated for 20min, so that the water-wetting emulsion separation membrane is converted into the oil-wetting emulsion separation membrane again, and then the emulsion in the water-in-oil state is separated.
In examples 2 to 5, the initiator was a commonly used azo initiator or peroxy initiator. Azo initiators are preferably azobisisobutyronitrile or azobisisoheptonitrile. The peroxy initiator is preferably any one of dibenzoyl peroxide, lauroyl peroxide, t-butyl peroxypivalate, diisopropyl peroxydicarbonate, dicyclohexyl peroxydicarbonate, cumene hydroperoxide, and potassium persulfate. The initiator dosage is used according to the dosage guidance of different initiators. In the present invention, the amount of the initiator used in examples 2 to 5 was 1% based on the total mass of DEAEMA monomer and MMA monomer.
Table 1:
as can be seen from the experimental data in table 1, the emulsion separation membrane according to the present invention can effectively separate a water-in-oil emulsion when switched to be hydrophobic and an oil-in-water emulsion when switched to be hydrophilic.
The working principle of the invention is as follows: the tertiary amine groups in DEAEMA (diethylaminoethyl methacrylate) can react with carbon dioxide in water to exhibit an extended hydrophilic chain conformation, and after carbon dioxide in water is removed by heating or by introducing nitrogen gas, DEAEMA returns to a hydrophobic state. According to the invention, DEAEMA (diethylaminoethyl methacrylate) is used as a responsive monomer, MMA (methyl methacrylate) is used as a hard monomer, tetrahydrofuran is used as a solvent to prepare a raw material solution, a free radical polymerization reaction is carried out under a certain condition to generate gel and coat the gel on the surface of yarn, and the yarn with the coating is woven into a fabric through a weaving machine so as to obtain the density-adjustable emulsion separation membrane capable of switching oil-water wettability.
Because the emulsion separation membrane is formed by weaving, fabrics with different densities can be woven by changing weaving parameters, the separation effect of the emulsion separation membrane on emulsion can be adjusted, and the separation of nano emulsion is realized.
The above embodiments are merely illustrative of the principles and effects of the present invention, and some embodiments in use, and are not intended to limit the invention; it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications belong to the protection scope of the present invention.
Claims (5)
1. An emulsion separation membrane is characterized by comprising a fabric (1) and a coating (2) coated on the surface of the fabric (1), wherein the coating (2) is a coating with switchable oil-water wettability.
2. Emulsion-separating membrane according to claim 1, characterized in that said fabric (1) is woven from yarns (101) by means of a weaving machine, said coating (2) being applied in advance on the surface of the yarns (101) and completely covering the surface of the yarns (101).
3. A process for preparing an emulsion separation membrane according to claim 1 or 2, characterized by comprising the following specific steps:
s1, preparation of PMMA-co-PDEAEMA Polymer: dissolving DEAEMA monomer and MMA monomer in tetrahydrofuran according to the mass ratio of 1: 0.5-2, adding initiator, heating and stirring in a nitrogen atmosphere for reaction for 24 hours at the heating temperature of 65-75 ℃, adding excessive n-hexane to precipitate polymer, taking out the precipitated polymer, and drying in an oven;
s2, preparation of polymer solution: dissolving the polymer prepared in the step S1 in tetrahydrofuran to prepare a polymer solution with the mass fraction of 10 wt%;
s3, preparation of polymer film covered yarn: uniformly coating the polymer solution prepared in the step S2 on the surface of the yarn, and leading the yarn to enter a drying room at 70 ℃ for heat treatment for 30min to obtain polymer film coated yarn;
s4, production of emulsion separation membrane: the polymer film-covered yarn obtained in step S3 was woven into a fabric by a loom to obtain an oil-wet emulsion separation membrane.
4. The method of an emulsion separation membrane according to claim 3, further comprising the specific steps of:
s5, wettability switching: when necessary, the emulsion separation membrane prepared in step S4 is placed in deionized water and CO is used2Bubbling for 10-20 min to prepare a water-wetting emulsion separation membrane; and when needed, placing the water-wetting emulsion separation membrane into deionized water, bubbling with nitrogen or directly heating for 10-20 min, and converting the water-wetting emulsion separation membrane into an oil-wetting emulsion separation membrane.
5. A method for using an emulsion separation membrane, characterized in that the emulsion separation membrane of claim 1 or 2 is used to separate an oil-water emulsion, and when the emulsion is in a water-in-oil state, the oil-wet emulsion separation membrane is used to separate the oil-water emulsion; separating oil-wet emulsion with CO when the emulsion is in oil-in-water state2Bubbling for 10-20 min to convert the oil-wet emulsion separation membrane into a water-wet emulsion separation membrane, and then separating; when the emulsion in the water-in-oil state needs to be separated again, the water-wetting emulsion separation membrane is placed in deionized water, and nitrogen is used for bubbling or direct heating is carried out for 10-20 min to separate the water-wetting emulsionAfter the membrane is again changed into an oil-wet emulsion separation membrane, the water-in-oil emulsion is separated.
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| CN202111542199.7A CN114259889A (en) | 2021-12-16 | 2021-12-16 | A kind of emulsion separation membrane and its preparation method and use method |
| CN202211613852.9A CN116099394A (en) | 2021-12-16 | 2022-12-15 | Emulsion separation membrane and application method thereof |
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| CN202211613852.9A Pending CN116099394A (en) | 2021-12-16 | 2022-12-15 | Emulsion separation membrane and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116407962A (en) * | 2023-05-22 | 2023-07-11 | 江南大学 | A CO2-photothermal dual-response nanoemulsion separation membrane and its preparation method and application |
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| CN104841293A (en) * | 2015-05-13 | 2015-08-19 | 清华大学 | A kind of oil-water separation nanofibrous membrane with CO2 stimulus response and its preparation method and application |
| CN105384863A (en) * | 2015-12-07 | 2016-03-09 | 江南大学 | Responsiveness-based copolymer modified polypropylene (PP) micro-filtration membrane |
| CN108837707A (en) * | 2018-05-21 | 2018-11-20 | 江苏大学 | A kind of preparation method of the selective water-oil separationg film of wetting separated on demand |
| CN111266018A (en) * | 2020-02-12 | 2020-06-12 | 中国科学院生态环境研究中心 | A kind of adjustable wettability polymer film and its preparation method and application |
| US20200353423A1 (en) * | 2016-02-19 | 2020-11-12 | Suzhou Industrial of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences | Polymer Material, Membrane and Coating as Well as Preparation Methods and Applications Thereof |
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2021
- 2021-12-16 CN CN202111542199.7A patent/CN114259889A/en not_active Withdrawn
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2022
- 2022-12-15 CN CN202211613852.9A patent/CN116099394A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104841293A (en) * | 2015-05-13 | 2015-08-19 | 清华大学 | A kind of oil-water separation nanofibrous membrane with CO2 stimulus response and its preparation method and application |
| CN105384863A (en) * | 2015-12-07 | 2016-03-09 | 江南大学 | Responsiveness-based copolymer modified polypropylene (PP) micro-filtration membrane |
| US20200353423A1 (en) * | 2016-02-19 | 2020-11-12 | Suzhou Industrial of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences | Polymer Material, Membrane and Coating as Well as Preparation Methods and Applications Thereof |
| CN108837707A (en) * | 2018-05-21 | 2018-11-20 | 江苏大学 | A kind of preparation method of the selective water-oil separationg film of wetting separated on demand |
| CN111266018A (en) * | 2020-02-12 | 2020-06-12 | 中国科学院生态环境研究中心 | A kind of adjustable wettability polymer film and its preparation method and application |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116407962A (en) * | 2023-05-22 | 2023-07-11 | 江南大学 | A CO2-photothermal dual-response nanoemulsion separation membrane and its preparation method and application |
| CN116407962B (en) * | 2023-05-22 | 2023-12-19 | 江南大学 | CO (carbon monoxide) 2 Photo-thermal dual-response type nanoemulsion separation membrane and preparation method and application thereof |
| WO2024239647A1 (en) * | 2023-05-22 | 2024-11-28 | 江南大学 | Co2-photothermal dual-responsive nano-emulsion separation membrane, and preparation method therefor and use thereof |
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| CN116099394A (en) | 2023-05-12 |
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Application publication date: 20220401 |