CN105709607A - Preparation method and equipment for ion exchange membrane with dopamine layer - Google Patents
Preparation method and equipment for ion exchange membrane with dopamine layer Download PDFInfo
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- CN105709607A CN105709607A CN201610124160.6A CN201610124160A CN105709607A CN 105709607 A CN105709607 A CN 105709607A CN 201610124160 A CN201610124160 A CN 201610124160A CN 105709607 A CN105709607 A CN 105709607A
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- exchange membrane
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- dopamine
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- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 title claims abstract description 84
- 239000003014 ion exchange membrane Substances 0.000 title claims abstract description 71
- 229960003638 dopamine Drugs 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 8
- 229960004502 levodopa Drugs 0.000 claims description 44
- -1 poly-DOPA amine Chemical class 0.000 claims description 44
- 239000012528 membrane Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 239000003011 anion exchange membrane Substances 0.000 claims description 7
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 5
- 238000005341 cation exchange Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 230000003447 ipsilateral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 14
- 238000006116 polymerization reaction Methods 0.000 abstract description 4
- 238000009423 ventilation Methods 0.000 abstract 6
- 230000005540 biological transmission Effects 0.000 abstract 2
- 239000000243 solution Substances 0.000 description 22
- 229920001690 polydopamine Polymers 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 8
- 230000003373 anti-fouling effect Effects 0.000 description 6
- 238000000151 deposition Methods 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 238000011161 development Methods 0.000 description 4
- 238000000909 electrodialysis Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- WTDRDQBEARUVNC-UHFFFAOYSA-N L-Dopa Natural products OC(=O)C(N)CC1=CC=C(O)C(O)=C1 WTDRDQBEARUVNC-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 2
- 230000009514 concussion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- JHJUUEHSAZXEEO-UHFFFAOYSA-M sodium;4-dodecylbenzenesulfonate Chemical compound [Na+].CCCCCCCCCCCCC1=CC=C(S([O-])(=O)=O)C=C1 JHJUUEHSAZXEEO-UHFFFAOYSA-M 0.000 description 2
- 241000237536 Mytilus edulis Species 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000227 bioadhesive Substances 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 235000020638 mussel Nutrition 0.000 description 1
- 239000002858 neurotransmitter agent Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 230000028327 secretion Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- 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
- B01D67/0006—Organic membrane manufacture by chemical reactions
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/42—Ion-exchange membranes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a preparation method and equipment for an ion exchange membrane with a dopamine layer. The method includes the steps that an ion exchange membrane is fixed into a device containing a dopamine solution, the dopamine solution is prepared, the dopamine layer is prepared, and the modified ion exchange membrane with the dopamine layer is prepared. The equipment comprises a first ventilation chamber, a material liquid chamber, a second ventilation chamber, an electric stirrer and an air transmission pump, and the first ventilation chamber, the material liquid chamber and the second ventilation chamber are fixedly connected to form a sealed three-chamber structure; the two side faces of the material liquid chamber are provided with through holes communicate with the inner cavity of the material liquid chamber, and the through holes are provided with ion exchange membranes; an air inlet of the first ventilation chamber and an air inlet of the second ventilation chamber are communicated with an air outlet pipeline of the air transmission pump; stirring paddles of the electric stirrer stretch into the inner cavity of the material liquid chamber. The preparation method and equipment for the ion exchange membrane with the dopamine layer have the advantages that resistance of the ion exchange membrane is effectively reduced; the thickness of the formed dopamine layer can be controlled, loss caused by self-polymerization of dopamine in the solution can be eliminated, conditions are mild, and reaction are controllable.
Description
Technical field
The present invention relates to a kind of ion exchange membrane preparation method with poly-DOPA amine layer and equipment thereof.
Background technology
Along with the development of industrial technology, ion exchange membrane process is in sea water and bitter, sewage disposal, chemical industry, food and the successful Application such as pharmaceutical industry, desalinization so that ion exchange membrane plays more and more important role in current development.Ion exchange membrane in a lot of fields in be applied, for instance electrodialysis, dialysis, anti-electrodialysis, film electrolysis, fuel cell etc..Electrodialysis is a kind of Electrochemical separation technology in order to separating inorganic salts, desalination water and process waste water from aqueous solution system, its potential gradient as under driving force from solution Selective Separation ion and recover apply electrolemma process.In electric drive process, ion under the effect of electric field through ion exchange membrane from Qian Xiangnong room, light room.Due to the high ion selectivity of ion exchange membrane, it receives increasing concern and research.For ion exchange membrane, have become as the high performance membrane material of a kind of hot topic of current research, mentioned by " China's film industry " 13 " strategic development planning " of the establishment of film TIA of China, country will be emerging strategic industries structure film Industry positioning, promote industrial upgrading, wherein the relevant technology of preparing of high performance membrane material is the core of new and effective isolation technics, ion exchange membrane technology research has become as solution water resource, the energy, the important method of the significant problem in the fields such as environment, play an important role in promoting Chinese national economy development and Industrial Technical Progress and enhancing our international competitiveness etc..In electric drive membrane separating process, the antifouling property of film is the assessment important key element of ion exchange membrane, is also the difficult problem very important in utilization of ion exchange membrane.
In order to solve by the contaminated problem brought of film, substantial amounts of resistance tocrocking material is found and applies.Dopamine performance can gather DOPA amine layer in oxygen contacts, and its antifouling property with excellence becomes current and solves the contaminated popular material of film.Dopamine is it have been found that in brain, and verified helps cell to transmit neurotransmitter in brain, relevant with many human emotion, after be found in the secretions of marine mussel, there is very strong biological viscosity.Just because of the existence of this material, making the bioadhesive phenomenon in nature under aqueous conditions, it can issue raw self-polymeric reaction under aerobic environment, forms brute force and is attached to the poly-dopamine thin layer of nearly all solid material surface and difficult drop-off.Membrane material is the core of membrane technology, and on this basis, membrane technology research worker is by dopamine at epilamellar self-polymeric reaction in recent years, film carries out surface modification, and modifies further in DOPA amine layer, it is achieved the improvement of film function and optimization.In membrane modifying process, how by dopamine uniformly, Quick Coagulation is to film surface, and facilitates the problem being implemented as smoothly can not ignore of further modifying process.
Summary of the invention
When the present invention is directed to the modification on current ion exchange membrane surface attachment easily come off, the problem of uneven thickness one, it is proposed that a kind of difficult drop-off, adhesion effect are good and thickness is homogeneous, the ion exchange membrane preparation method of the poly-DOPA amine layer of the band of mild condition and equipment thereof.
A kind of ion exchange membrane preparation method with poly-DOPA amine layer of the present invention, comprises the steps:
1) ion exchange membrane to be modified is installed: anion exchange membrane to be modified or cation exchange membrane are arranged on the through hole of both sides, feed liquid room, keeps medial surface and the feed liquid room inner space of ion exchange membrane；
2) configuration dopamine solution: dopamine is dissolved in the Tris-HCl solution that concentration is 10mmol/L that pH is 8.5 being made into dopamine solution, the mass volume ratio of wherein said dopamine and described Tris-HCl solution is 20:1；
3) the poly-DOPA amine layer of preparation: stir after 100mL dopamine solution is added feed liquid room, 3-4h is reacted under 22 DEG C of conditions, reaction simultaneously gas distribution outside ion exchange membrane to be modified all the time, all the time there is the gas mould of uniformly continuous in the lateral surface keeping ion exchange membrane, the surface making ion exchange membrane forms uniform poly-DOPA amine layer, and wherein mixing speed is 100-150r/min；Draft speed is 6-10m/s；
4) clean roguing: after deposition reaction terminates, outwell rapidly dopamine solution, and pour deionized water into, remove the impurity on poly-DOPA amine layer surface and the unreacted dopamine solution of residual, heighten agitator speed, for 300-400r/min；
5) modified ion exchange membrane of the poly-DOPA amine layer of preparation band: stop concussion, take off modified ion exchange membrane, is placed in pure water and soaks preserves under room temperature, the modified ion exchange membrane of the poly-DOPA amine layer of band.
Step 3) mixing speed be 100r/min.
Step 3) reaction temperature be 22 DEG C.
According to the equipment that preparation method of the present invention builds, it is characterized in that: include the first breather chamber, feed liquid room, the second breather chamber, motor stirrer and gasing pump, described the first breather chamber, feed liquid room and the second breather chamber form, by long bolt is affixed, three cell structures sealed, and wherein said feed liquid room is clipped between the first described breather chamber and the second described breather chamber；The two sides of described feed liquid room are provided with and the through hole of feed liquid room inner space, and ion exchange membrane is installed in described through hole；The medial surface of the first described breather chamber is respectively equipped with the passage corresponding with feed liquid room ipsilateral through hole with the medial surface of the second described breather chamber, the air inlet of the first described breather chamber, the second described breather chamber air inlet respectively with the gas outlet pipeline connection of described gasing pump；The stirring paddle of described motor stirrer stretches into the inner chamber of described feed liquid room.
Described through hole edge is furnished with the first rubber ring for sealing, and is furnished with the second rubber ring for sealing in the groove of through hole circumference.
The first described breather chamber top is provided with the first row QI KOU connected with the first breather chamber.
The second described breather chamber top is provided with the second exhaust port connected with the second breather chamber.
The invention has the beneficial effects as follows: (1) forms the poly-DOPA amine layer of one side polymerization for ion exchange membrane surface；(2) ion exchange membrane resistance is effectively reduced；(3) equipment simultaneously invented can control the poly-dopamine layer thickness that formed and eliminate dopamine oneself's polymerization in the solution and the loss that causes, the method mild condition, reacts controlled.
Accompanying drawing explanation
Fig. 1 is the apparatus system flow chart that the present invention forms poly-DOPA amine layer on ion exchange membrane surface；
Fig. 2 is the feed liquid room end view drawing of the present invention；
Fig. 3 is that the present invention forms poly-dopamine bed device critical piece figure；
Fig. 4 is the apparatus system process schematic that the present invention forms poly-DOPA amine layer；
Fig. 5 is the antipollution effect figure of Surfactant of the present invention.
Detailed description of the invention
The present invention is further illustrated below in conjunction with accompanying drawing
With reference to accompanying drawing:
Embodiment 1 a kind of ion exchange membrane preparation method with poly-DOPA amine layer of the present invention, comprises the steps:
1) ion exchange membrane to be modified is installed: anion exchange membrane to be modified or cation exchange membrane are arranged on the through hole of both sides, feed liquid room, keeps medial surface and the feed liquid room inner space of ion exchange membrane；
2) configuration dopamine solution: 0.2g dopamine is dissolved in the Tris-HCl solution that concentration is 10mmol/L that 100mLpH is 8.5 being made into dopamine solution, the mass volume ratio of wherein said dopamine and described Tris-HCl solution is 20:1；
3) the poly-DOPA amine layer of preparation: stir after 100mL dopamine solution is added feed liquid room, 1h is reacted under 22 DEG C of conditions, reaction simultaneously gas distribution outside ion exchange membrane to be modified all the time, all the time there is the gas mould of uniformly continuous in the lateral surface keeping ion exchange membrane, the surface making ion exchange membrane forms uniform poly-DOPA amine layer, and wherein mixing speed is 100r/min；Draft speed is 6-10m/s；
4) clean roguing: after deposition reaction terminates, outwell rapidly dopamine solution, and pour deionized water into, remove the impurity on poly-DOPA amine layer surface and the unreacted dopamine solution of residual, heighten agitator speed, for 300r/min；
5) modified ion exchange membrane of the poly-DOPA amine layer of preparation band: stop concussion, take off modified ion exchange membrane, preserves after being placed in pure water to soak 24h under room temperature, the modified ion exchange membrane of the poly-DOPA amine layer of band.
Step 3) mixing speed be 100r/min.
Step 3) reaction temperature be 22 DEG C.
The equipment that embodiment 2 builds according to preparation method of the present invention, including the first breather chamber 1, feed liquid room the 2, second breather chamber 3, motor stirrer 4 and gasing pump 5, described the first breather chamber 1, feed liquid room 2 and the second breather chamber 3 form, by long bolt is affixed, three cell structures sealed, and wherein said feed liquid room 2 is clipped between the first described breather chamber 1 and the second described breather chamber 3；The two sides of described feed liquid room 2 are provided with and the through hole 21 of feed liquid room inner space, and ion exchange membrane 6 is installed at described through hole 21 place；The medial surface of the first described breather chamber 1 is respectively equipped with the passage corresponding with feed liquid room 2 ipsilateral through hole with the medial surface of the second described breather chamber 3, the first air inlet 11 of the first described breather chamber 1, the second described breather chamber 3 the second air inlet 31 respectively with the gas outlet pipeline connection of described gasing pump 5；The stirring paddle 41 of described motor stirrer 4 stretches into the inner chamber of described feed liquid room 2.
Described through hole 21 edge is furnished with the first rubber ring 22 for sealing, and is furnished with the second rubber ring 23 for sealing in the groove of through hole circumference.
The first described breather chamber 1 top is provided with the first row QI KOU 12 connected with the first breather chamber.
The second described breather chamber 3 top is provided with the second exhaust port 32 connected with the second breather chamber.
Described the first breather chamber, the second breather chamber and described feed liquid room are square structure, and the first breather chamber, the second breather chamber and described drift angle place, four, feed liquid room are furnished with the installing hole 24 for installing long bolt.
Described motor stirrer 4 is furnished with speed governing knob 42 and shift knob 43.
Embodiment 3 controls the impact on depositing dopamine of the turn speed of agitator
A kind of ion exchange membrane preparation method with poly-DOPA amine layer described in embodiment 1, dopamine solution is formed in the process of poly-DOPA amine layer on ion exchange membrane surface, and the rotating speed controlling agitator respectively is 20r/min, 50r/min, 100r/min, 200r/min, 400r/min.After deposition 4h, by the black particle material on relatively more poly-dopamine surface, (this material is the poly-dopamine granule foreign that dopamine solution auto polymerization is formed, phenomenon 1), (color is more deep for the color darkness that poly-dopamine is formed, show that the poly-DOPA amine layer formed is more thick, phenomenon 2) and whether observe uniformity that poly-dopamine top layer formed on ion exchange membrane surface (homogeneous by the poly-DOPA amine layer color observed in the formation of ion exchange membrane surface, phenomenon 3) situation, thus showing that the turn speed of agitator forms the optimum speed scope of poly-DOPA amine layer on ion exchange membrane surface.
Embodiment 4 controls the time the forming poly-DOPA amine layer impact on depositing dopamine
A kind of ion exchange membrane preparation method with poly-DOPA amine layer described in embodiment 1, dopamine solution is formed in the process of poly-DOPA amine layer on ion exchange membrane surface, the time controlling dopamine solution deposition respectively is 2h, 3h, 4h, 5h, 6h, and the rotating speed controlling agitator is 100r/min.(color is more deep for the color darkness formed by relatively more poly-dopamine, show that the poly-DOPA amine layer formed is more thick, phenomenon 1) and whether observe uniformity that poly-dopamine top layer formed on ion exchange membrane surface (homogeneous by the poly-DOPA amine layer color observed in the formation of ion exchange membrane surface, phenomenon 2) situation, thus showing that the time that dopamine solution deposits forms the Best Times scope of poly-DOPA amine layer on ion exchange membrane surface.
Embodiment 5 is for the modified ion exchange membrane antifouling property test of preparation
The present embodiment 5 is main to be placed in the electrodialytic process containing high density pollution material by the ion exchange membrane modified through poly-DOPA amine layer, by measuring the value added of membrane resistance in different time sections, such that it is able to draw the antifouling property of ion exchange membrane.With business-like homogeneous-phase anion exchange film (company of Fuji, Japan) for example, the anion exchange membrane modified through poly-dopamine is positioned in electrodialysis plant, put in an electrodialytic compartment using dodecylbenzene sodium sulfonate as pollutant, the anion exchange membrane side that poly-DOPA amine layer modifiies is containing dodecylbenzene sodium sulfonate compartment, in electrodialytic process, in different time sections, by the resistance of the relative original state of comparative film, thus evaluating its antifouling property.Can be drawn by the resistance value added of relatively former film with the film modified through poly-dopamine, in 30min, the resistance of unmodified anion exchange membrane add 1.95 Ω/cm2 and through modified membrane surface resistance value added close to 0.08 Ω/cm2；Can drawing by comparing the membrane surface resistance value added of 210min, the anion exchange membrane modified through poly-dopamine has good antifouling property.
Content described in this specification embodiment is only enumerating of the way of realization to inventive concept; protection scope of the present invention is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also include those skilled in the art according to present inventive concept it is conceivable that equivalent technologies means.
Claims (7)
1. an ion exchange membrane preparation method for the poly-DOPA amine layer of band, comprises the steps:
1) ion exchange membrane to be modified is installed: anion exchange membrane to be modified or cation exchange membrane are arranged on the through hole of both sides, feed liquid room, keeps medial surface and the feed liquid room inner space of ion exchange membrane；
2) configuration dopamine solution: dopamine is dissolved in the Tris-HCl solution that concentration is 10mmol/L that pH is 8.5 being made into dopamine solution, the mass volume ratio of wherein said dopamine and described Tris-HCl solution is 20:1；
3) the poly-DOPA amine layer of preparation: stir after 100mL dopamine solution is added feed liquid room, react 3-4h at ambient temperature, reaction simultaneously gas distribution outside ion exchange membrane to be modified all the time, all the time there is the gas mould of uniformly continuous in the lateral surface keeping ion exchange membrane, the surface making ion exchange membrane forms uniform poly-DOPA amine layer, and wherein mixing speed is 100-150r/min；Draft speed is 6-10m/s；
4) clean roguing: after deposition reaction terminates, outwell rapidly dopamine solution, and pour deionized water into, remove the impurity on poly-DOPA amine layer surface and the unreacted dopamine solution of residual, heighten agitator speed, for 300-400r/min；
5) modified ion exchange membrane of the poly-DOPA amine layer of preparation band: stop stirring and rotate, take off modified ion exchange membrane, is placed in pure water and soaks preserves under room temperature, the modified ion exchange membrane of the poly-DOPA amine layer of band.
2. a kind of ion exchange membrane preparation method with poly-DOPA amine layer as claimed in claim 1, it is characterised in that: step 3) mixing speed be 100r/min.
3. a kind of ion exchange membrane preparation method with poly-DOPA amine layer as claimed in claim 1, it is characterised in that: step 3) reaction temperature be 22 DEG C.
4. the equipment that preparation method according to claim 1 builds, it is characterized in that: include the first breather chamber, feed liquid room, the second breather chamber, motor stirrer and gasing pump, described the first breather chamber, feed liquid room and the second breather chamber form, by long bolt is affixed, three cell structures sealed, and wherein said feed liquid room is clipped between the first described breather chamber and the second described breather chamber；The two sides of described feed liquid room are provided with and the through hole of feed liquid room inner space, and ion exchange membrane is installed in described through hole；The medial surface of the first described breather chamber is respectively equipped with the passage corresponding with feed liquid room ipsilateral through hole with the medial surface of the second described breather chamber, the air inlet of the first described breather chamber, the second described breather chamber air inlet respectively with the gas outlet pipeline connection of described gasing pump；The stirring paddle of described motor stirrer stretches into the inner chamber of described feed liquid room.
5. the equipment for forming poly-DOPA amine layer on ion exchange membrane surface as claimed in claim 4, it is characterised in that: described through hole edge is furnished with the first rubber ring for sealing, and is furnished with the second rubber ring for sealing in the groove of through hole circumference.
6. the equipment for forming poly-DOPA amine layer on ion exchange membrane surface as claimed in claim 4, it is characterised in that: the first described breather chamber top is provided with the first row QI KOU connected with the first breather chamber.
7. the equipment for forming poly-DOPA amine layer on ion exchange membrane surface as claimed in claim 4, it is characterised in that: the second described breather chamber top is provided with the second exhaust port connected with the second breather chamber.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106925357B (en) * | 2017-03-02 | 2019-05-31 | 浙江工业大学 | A kind of preparation method of Monovalent selectivity anion-exchange membrane |
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| CN109225357A (en) * | 2018-08-28 | 2019-01-18 | 浙江工业大学 | A method of preparing the modified anion exchange membrane for having both Monovalent selectivity and antibiotic property |
| CN109225357B (en) * | 2018-08-28 | 2021-07-27 | 浙江工业大学 | Method for preparing modified anion exchange membrane with monovalent selectivity and antibacterial property |
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| CN112759041A (en) * | 2019-10-21 | 2021-05-07 | 中国石油化工股份有限公司 | Method for preparing anti-pollution ion exchange membrane |
| US11499076B2 (en) | 2020-03-13 | 2022-11-15 | Nautilus Solutions, Llc | Bearings and components thereof comprising a hot-melt pressure sensitive adhesive and methods of their preparation |
| CN114748727A (en) * | 2022-04-15 | 2022-07-15 | 北京大学 | Electroosmosis pump and insulin pump system |
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