CN115364905A - Recyclable electrode liquid ion exchange membrane and preparation method thereof - Google Patents
Recyclable electrode liquid ion exchange membrane and preparation method thereof Download PDFInfo
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- CN115364905A CN115364905A CN202211001816.7A CN202211001816A CN115364905A CN 115364905 A CN115364905 A CN 115364905A CN 202211001816 A CN202211001816 A CN 202211001816A CN 115364905 A CN115364905 A CN 115364905A
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- 239000007788 liquid Substances 0.000 title claims abstract description 64
- 239000003014 ion exchange membrane Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims abstract description 35
- 239000012528 membrane Substances 0.000 claims abstract description 90
- 239000011347 resin Substances 0.000 claims abstract description 30
- 229920005989 resin Polymers 0.000 claims abstract description 30
- 150000003460 sulfonic acids Chemical class 0.000 claims abstract description 12
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical class C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000012510 hollow fiber Substances 0.000 claims description 74
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 66
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 39
- 229910052708 sodium Inorganic materials 0.000 claims description 39
- 239000011734 sodium Substances 0.000 claims description 39
- 239000002105 nanoparticle Substances 0.000 claims description 21
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 238000001035 drying Methods 0.000 claims description 16
- 239000011248 coating agent Substances 0.000 claims description 13
- 238000000576 coating method Methods 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 10
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 238000003860 storage Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011780 sodium chloride Substances 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 230000001131 transforming effect Effects 0.000 claims description 3
- 238000007865 diluting Methods 0.000 claims description 2
- 150000002500 ions Chemical class 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 11
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000005342 ion exchange Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000010220 ion permeability Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920005597 polymer membrane Polymers 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J41/00—Anion exchange; Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/08—Use of material as anion exchangers; Treatment of material for improving the anion exchange properties
- B01J41/12—Macromolecular compounds
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a recyclable electrode liquid ion exchange membrane and a preparation method thereof, and relates to the technical field of ion exchange membranes. The recyclable electrode liquid ion exchange membrane comprises a membrane body, wherein an exchange layer is coated on the side wall of the membrane body, the mould body is prepared from perfluorinated ion exchange resin, and the recyclable electrode liquid ion exchange membrane is prepared by processing perfluorinated sulfonic acid resin through multiple steps. According to the recyclable electrode liquid ion exchange membrane and the preparation method thereof, the recyclable electrode liquid ion exchange membrane is prepared and processed by adopting the perfluorinated sulfonic acid resin, the exchange layer coated on the surface can not form ion blocking on ions in the electrode liquid, and the recyclable electrode liquid ion exchange membrane body has a good ion guiding effect, so that the exchange balance of electrons between a cathode and an anode in a battery is ensured, the excessive consumption of electrons in the anode in the battery is avoided, and the service life of the battery is prolonged.
Description
Technical Field
The invention relates to the technical field of ion exchange membranes, in particular to a recyclable electrode liquid ion exchange membrane and a preparation method thereof.
Background
The ion exchange membrane is a polymer membrane which contains ion groups and has selective permeability to ions in a solution, and according to the characteristic, the ion exchange membrane has wide application prospect in the market, so the ion exchange membrane is also called as an ion selective permeability membrane, and the ion exchange membrane can be improved and manufactured according to the actual production requirements of people, so that the ion exchange membrane can meet different ion permeability, and further can realize the ion exchange capacity in different solutions.
In the existing battery, the electronic balance of the positive electrode and the negative electrode in the electrode solution is often difficult to ensure in the use process of the electrode solution, and the phenomenon of overlarge electronic consumption in the electrode solution is easy to occur, so that the cruising ability of the battery is further reduced, and the service life of the battery is further shortened; in view of this, we propose a recyclable electrode liquid ion exchange membrane and a preparation method thereof.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a recyclable electrode liquid ion exchange membrane and a preparation method thereof, and solves the problems mentioned in the background technology.
(II) technical scheme
In order to realize the purpose, the invention is realized by the following technical scheme: a recyclable electrode liquid ion exchange membrane comprises a membrane body, wherein an exchange layer is coated on the side wall of the membrane body, the thickness of the membrane body is set to be 1-200 mu m, the ionic conductivity is 0.01-0.15S/cm, the mechanical strength is 1-100MPa, and the membrane body is prepared from perfluorinated ion exchange resin.
Preferably, the preparation method comprises the following preparation steps:
s1, taking 100g of perfluorinated sulfonic acid resin, melting and extruding to form a hollow fiber membrane, and placing the hollow fiber membrane in a storage solution for later use;
s2, preparing NaOH solution with corresponding concentration into a glass cup for later use;
s3, taking out the hollow fiber membrane in the S1, placing the hollow fiber membrane in a container of the S2, standing, soaking and transforming to obtain a transformed sodium type hollow fiber membrane;
s4, taking out the sodium type hollow fiber membrane after standing in the S3, and then standing and drying in a dryer;
s5, crushing the sodium type hollow fiber membrane dried in the step S4 in a grinder to obtain crushed sodium type hollow fiber membrane nano-scale particles;
s6, taking the sodium type hollow fiber membrane nano-scale particles obtained in the S5, pouring the sodium type hollow fiber membrane nano-scale particles into a sulfonic acid resin hydroalcoholic solution, and mixing the sodium type hollow fiber membrane nano-scale particles through a stirrer to obtain a porous gas release layer dispersion liquid;
s7, heating the container in the step S6 at a low temperature, and stirring by using a stirrer;
and S8, coating the porous gas release layer dispersion liquid obtained in the S7 on two sides of the die body, standing and drying to obtain an exchange layer, and meanwhile, obtaining the ion exchange membrane of the recyclable electrode liquid.
Preferably, the storage solution used in S1 is prepared by proportionally diluting NaCl and water at a ratio of 1.
Preferably, the density of the NaOH solution in S2 is set to be 0.5mol/mL-1mol/mL, and the NaOH solution and the hollow fiber membrane are soaked in S3 in a standing manner, and meanwhile, the hollow fiber membrane is placed on a silver rack and is fed into the NaOH solution in S2.
Preferably, the sodium-type hollow fiber membrane obtained in S3 is dried by gentle breeze in the dryer used in S4, the air speed is controlled to be 0.5m/S, the relative humidity is 30%, and the sodium-type hollow fiber membrane is still placed on the silver rack all the time in the drying process.
Preferably, the density of the sulfonic acid resin hydroalcoholic solution in S6 is set to 2mol/ML to 5mol/ML, and when the sodium-type hollow fiber membrane nano-particles are put into the sulfonic acid resin hydroalcoholic solution, the container for storing the sulfonic acid resin hydroalcoholic solution is first rotated while quantitatively feeding the sodium-type hollow fiber membrane nano-particles into the sulfonic acid resin hydroalcoholic solution.
Preferably, the coating thickness of the porous gas release layer dispersion in S7 is 1 to 2 μm, and the porous gas release layer dispersion is simultaneously applied to both sides of the mold body and the pressure of the coating apparatus is sensed using a pressure sensor.
Preferably, the hollow fiber membrane formed by the perfluorinated sulfonic acid resin in the S2 is soaked in the NaOH solution for 12 hours.
Preferably, the low-temperature heating temperature in S7 is set to be 30 ℃, the stirring speed of the stirrer in S6 is 150r/min, and the heating and drying time is set to be 30min.
(III) advantageous effects
The invention provides a recyclable electrode liquid ion exchange membrane and a preparation method thereof. The method has the following beneficial effects:
(1) When the recyclable electrode liquid ion exchange membrane and the preparation method thereof are used, the recyclable electrode liquid ion exchange membrane is obtained by preparing and processing the perfluorinated sulfonic acid resin, the exchange layer coated on the surface can not form ion blocking on ions in the electrode liquid, and then the recyclable electrode liquid ion exchange membrane body has a good ion guiding effect, so that the exchange balance of electrons between a cathode and an anode in a battery is ensured, the excessive consumption of electrons of the anode in the battery is avoided, and the service life of the battery is prolonged.
(2) When the recyclable electrode liquid ion exchange membrane and the preparation method thereof are used, sodium conversion of the hollow fiber membrane and subsequent drying operation of the sodium hollow fiber membrane are controlled by the silver placement frame, direct contact of workers with NaOH solution is avoided, influence of external environmental factors in the preparation process is reduced, purity of the preparation process of the recyclable electrode liquid ion exchange membrane is guaranteed, and preparation quality of the recyclable electrode liquid ion exchange membrane is improved.
(3) When the recyclable electrode liquid ion exchange membrane and the preparation method thereof are used, in order to improve the concentration of the porous gas release layer dispersion liquid in the exchange layer, the porous gas release layer dispersion liquid is subjected to low-temperature heating and slow stirring in the preparation process, so that the dissolution rate of sodium type hollow fiber membrane nano-particles poured into a sulfonic acid resin hydroalcoholic solution is accelerated, and simultaneously, the content of water in the solution is reduced, thereby improving the concentration of the porous gas release layer dispersion liquid, and further ensuring the ion exchange guiding efficiency of the recyclable electrode liquid ion exchange membrane.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention.
In the figure: 1. a mold body; 2. and (4) exchanging layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a recyclable electrode liquid ion exchange membrane and a preparation method thereof, including a recyclable electrode liquid ion exchange membrane comprising a membrane body 1, wherein the side wall of the membrane body 1 is coated with an exchange layer 2, the thickness of the membrane body 1 is set to 1-200 μm, the ionic conductivity is 0.01-0.15S/cm, the mechanical strength is 1-100MPa, the membrane body 1 is prepared by using perfluorinated ion exchange resin, and specifically, the preparation method of the recyclable electrode liquid ion exchange membrane comprises the following preparation steps:
s1, taking 100g of perfluorinated sulfonic acid resin, melting and extruding to form a hollow fiber membrane, and placing the hollow fiber membrane in a storage solution for later use;
s2, preparing NaOH solution with corresponding concentration into a glass cup for later use;
s3, taking out the hollow fiber membrane in the S1, placing the hollow fiber membrane in the container of the S2, standing, soaking and transforming to obtain a transformed sodium type hollow fiber membrane;
s4, taking out the sodium type hollow fiber membrane after standing in the S3, and standing and drying in a dryer;
s5, crushing the sodium type hollow fiber membrane dried in the step S4 in a grinder to obtain crushed sodium type hollow fiber membrane nano-scale particles;
s6, taking the sodium type hollow fiber membrane nano-scale particles obtained in the S5, pouring the sodium type hollow fiber membrane nano-scale particles into a sulfonic acid resin hydroalcoholic solution, and mixing the sodium type hollow fiber membrane nano-scale particles through a stirrer to obtain a porous gas release layer dispersion liquid;
s7, heating the container in the step S6 at a low temperature, and stirring by using a stirrer;
and S8, coating the porous gas release layer dispersion liquid obtained in the S7 on two sides of the die body 1, standing and drying to obtain an exchange layer 2, and thus obtaining the ion exchange membrane of the recyclable electrode liquid.
In the embodiment of the invention, the storage solution used in S1 is diluted by adopting NaCl and water according to the proportion of 1, simultaneously stirring for 2min at 300r/min by adopting a stirrer, standing for 30min to obtain the product, so that the hollow fiber membrane made of the perfluorinated sulfonic acid resin prepared in S1 can obtain better preservation effect, so that the ion exchange membrane can not be broken and damaged in the preparation process, the subsequent normal preparation process is not influenced, the preparation quality of the recyclable electrode liquid ion exchange membrane is ensured, and furthermore, through stirring and mixing, the NaCl solution keeps better concentration, the concentration of the solution in the container is avoided to be uneven, adversely affects the preservation of the hollow fiber membrane, and the density of the NaOH solution in S2 is set to 0.5mol/mL-1mol/mL, and the NaOH solution and the hollow fiber membrane are soaked in S3 in a standing way, and meanwhile, the hollow fiber membrane is placed on a silver placing rack and is sent into the NaOH solution in S2, by adopting the silver rack, the hollow fiber membrane can obtain a certain supporting effect, meanwhile, the hollow fiber membrane can be easily taken out of or put into the NaOH solution by workers, the preparation process of the workers is facilitated, ensures that the staff is not influenced by the NaOH solution in the preparation process, ensures the safety in the preparation process of the ion exchange membrane of the recyclable electrode solution, in addition, the arrangement of the silver rack ensures that the hollow fiber membrane can be kept still in the middle of the liquid of the NaOH solution, so that the upper and lower sides of the hollow fiber membrane can be in better contact with the NaOH solution, and the problem that the hollow fiber membrane is difficult to take out and guarantee the sodium conversion efficiency of the upper and lower sides of the hollow fiber membrane after sinking to the bottom in the NaOH solution is avoided.
In the embodiment of the invention, the sodium type hollow fiber membrane obtained in the step S3 is dried by breeze in the dryer adopted in the step S4, the wind speed is controlled to be 0.5m/S, the relative humidity is 30%, and the sodium type hollow fiber membrane is always statically placed on the silver rack in the drying process, in particular, the dryer is arranged, so that the influence of the contact of the sodium type hollow fiber membrane with the external environment can be reduced, meanwhile, the drying efficiency of the sodium type hollow fiber membrane can be adapted by controlling the wind speed, the temperature and other conditions in the dryer, the preparation efficiency and the preparation effect of the recyclable electrode liquid ion exchange membrane can be effectively ensured, in addition, the silver rack is arranged, so that the drying efficiency of the sodium type hollow fiber membrane can be improved on the premise of ensuring the stability of the sodium type hollow fiber membrane, the conditions of mutual adhesion and the like are avoided, the drying effect of the sodium type hollow fiber membrane is reduced, so that the preparation quality of the recyclable electrode liquid ion exchange membrane is ensured, further, the density of the sulfonic acid resin hydroalcoholic solution in S6 is set to be 2-5 mol/ML, and when the sodium type hollow fiber membrane nano-particles are placed into the sulfonic acid resin hydroalcoholic solution, the container for storing the sulfonic acid resin hydroalcoholic solution is rotated at first, and meanwhile, the sodium type hollow fiber membrane nano-particles are quantitatively sent into the sulfonic acid resin hydroalcoholic solution, specifically, the sodium type hollow fiber membrane nano-particles are assisted to be fed in by rotating the sulfonic acid resin hydroalcoholic solution, so that the sodium type hollow fiber membrane nano-particles are primarily mixed before entering the sulfonic acid resin hydroalcoholic solution for mixing, the subsequent mixing efficiency can be improved, and the subsequent solution mixing time increase caused by centralized feeding can be avoided, thereby affecting the efficiency and effect of the whole processing preparation.
In the examples of the present invention, the dispersion liquid of the porous gas releasing layer in S7 was coated to a thickness of 1 to 2 μm, and the porous gas release layer dispersion is coated on both sides of the die body 1 at the same time, and the pressure of the coating equipment is sensed by a pressure sensor, specifically, the die body 1 is fixed by external placing equipment, meanwhile, coating the porous gas release layer dispersion liquid on the two sides of the die body 1 by coating equipment with a pressure sensor so as to ensure the coating effect of the exchange layers 2 on the two sides of the die body 1, thereby ensuring the ion permeability of the exchange layer 2 in the using process, further avoiding the overlarge extrusion of the die body 1 caused by coating equipment by arranging a pressure sensor, thereby avoiding damaging the integral structure of the die body 1 and influencing the subsequent preparation effect of the recyclable electrode liquid ion exchange membrane, in addition, the hollow fiber membrane formed by the perfluorinated sulfonic acid resin in the S2 is soaked in the NaOH solution for 12 hours, so as to ensure that the hollow fiber membrane formed by the perfluorinated sulfonic acid resin can obtain sufficient sodium conversion effect in NaOH solution, further avoiding that the ion exchange membrane of the recyclable electrode solution prepared by the subsequent hollow fiber membrane is difficult to play a role of guiding and repelling the ion exchange in the electrode solution, reducing the preparation quality of the ion exchange membrane of the recyclable electrode solution, simultaneously setting the low-temperature heating temperature in S7 to be 30 ℃, and the stirring speed of the stirrer in S6 is 150r/min, the heating and drying time is set to be 30min, the content of water in the dispersion liquid of the porous gas release layer is reduced by slow stirring and low-temperature heating, thereby improving the concentration of the dispersion liquid of the porous gas release layer, ensuring the coating quality of the exchange layer 2 and further ensuring the guide efficiency of the ion exchange membrane of the recyclable electrode liquid to the ion exchange in the electrode liquid when in use.
In the invention, when in use, the recyclable electrode liquid ion exchange membrane obtained by preparing and processing perfluorinated sulfonic acid resin is adopted, the exchange layer 2 coated on the surface of the recyclable electrode liquid ion exchange membrane can not form ion barrier to ions in the electrode liquid, so that the recyclable electrode liquid ion exchange membrane body has good ion guide effect, thereby ensuring the exchange balance of electrons between a cathode and an anode in the battery, avoiding overlarge electron consumption of the anode in the battery, and further prolonging the service life of the battery.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A recyclable electrode liquid ion exchange membrane is characterized in that: the membrane comprises a membrane body (1), wherein an exchange layer (2) is coated on the side wall of the membrane body (1), the thickness of the membrane body (1) is set to be 1-200 mu m, the ionic conductivity is 0.01-0.15S/cm, the mechanical strength is 1-100MPa, and the membrane body (1) is prepared from perfluorinated ion exchange resin.
2. A preparation method of a recyclable electrode liquid ion exchange membrane is characterized by comprising the following steps: the preparation method comprises the following preparation steps:
s1, taking 100g of perfluorinated sulfonic acid resin, melting and extruding to form a hollow fiber membrane, and placing the hollow fiber membrane in a storage solution for later use;
s2, preparing NaOH solution with corresponding concentration into a glass cup for later use;
s3, taking out the hollow fiber membrane in the S1, placing the hollow fiber membrane in a container of the S2, standing, soaking and transforming to obtain a transformed sodium type hollow fiber membrane;
s4, taking out the sodium type hollow fiber membrane after standing in the S3, and standing and drying in a dryer;
s5, taking the sodium type hollow fiber membrane dried in the S4, and crushing in a grinder to obtain crushed sodium type hollow fiber membrane nano-scale particles;
s6, taking the sodium type hollow fiber membrane nano-scale particles obtained in the S5, pouring the sodium type hollow fiber membrane nano-scale particles into a sulfonic acid resin hydroalcoholic solution, and mixing the sodium type hollow fiber membrane nano-scale particles through a stirrer to obtain a porous gas release layer dispersion liquid;
s7, heating the container in the step S6 at a low temperature, and stirring by using a stirrer;
and S8, coating the porous gas release layer dispersion liquid obtained in the step S7 on two sides of the die body (1), standing and drying to obtain an exchange layer (2), and meanwhile obtaining the recyclable electrode liquid ion exchange membrane.
3. The method for preparing the recyclable electrode liquid ion exchange membrane as claimed in claim 2, wherein the method comprises the following steps: the storage solution used in the S1 is prepared by proportionally diluting NaCl and water according to the proportion of 1.
4. The method for preparing the ion exchange membrane for the recyclable electrode liquid as described in claim 2, wherein the method comprises the following steps: the density of the NaOH solution in the S2 is set to be 0.5-1 mol/mL, and the NaOH solution and the hollow fiber membrane are soaked in the S3 in a standing mode, and meanwhile, the hollow fiber membrane is placed on a silver placing frame and is sent into the NaOH solution in the S2.
5. The method for preparing the recyclable electrode liquid ion exchange membrane as claimed in claim 2, wherein the method comprises the following steps: and (4) drying the sodium type hollow fiber membrane obtained in the step (3) by breeze in a dryer adopted in the step (S4), wherein the wind speed is controlled to be 0.5m/S, the relative humidity is 30%, and the sodium type hollow fiber membrane is always statically placed on a silver placing rack in the drying process.
6. The method for preparing the recyclable electrode liquid ion exchange membrane as claimed in claim 2, wherein the method comprises the following steps: the density of the sulfonic acid resin hydroalcoholic solution in the S6 is set to be 2-5 mol/ML, and when the sodium-type hollow fiber membrane nano-particles are placed into the sulfonic acid resin hydroalcoholic solution, the container for storing the sulfonic acid resin hydroalcoholic solution is rotated, and the sodium-type hollow fiber membrane nano-particles are quantitatively delivered into the sulfonic acid resin hydroalcoholic solution.
7. The method for preparing the ion exchange membrane for the recyclable electrode liquid as described in claim 2, wherein the method comprises the following steps: the coating thickness of the dispersion liquid of the porous gas release layer in the S7 is 1-2 mu m, and the dispersion liquid of the porous gas release layer is coated on two sides of the die body (1) simultaneously, and the pressure of the coating equipment is sensed by a pressure sensor.
8. The method for preparing the ion exchange membrane for the recyclable electrode liquid as described in claim 2, wherein the method comprises the following steps: and the hollow fiber membrane formed by the perfluorinated sulfonic acid resin in the S2 is soaked in the NaOH solution for 12h.
9. The method for preparing the recyclable electrode liquid ion exchange membrane as claimed in claim 2, wherein the method comprises the following steps: the low-temperature heating temperature in the S7 is set to be 30 ℃, the stirring speed of the stirrer in the S6 is 150r/min, and the heating and drying time is set to be 30min.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054445A (en) * | 2007-03-07 | 2007-10-17 | 山东东岳高分子材料有限公司 | Perfluorinated ion exchange casting enhancement member and preparing method thereof |
| CN104018180A (en) * | 2014-06-06 | 2014-09-03 | 山东东岳高分子材料有限公司 | Zero-polar-distance ion exchange membrane and preparation method thereof |
| CN111074297A (en) * | 2019-12-31 | 2020-04-28 | 山东东岳未来氢能材料有限公司 | Electrolytic cell diaphragm for chlor-alkali industry and preparation method thereof |
| CN111188050A (en) * | 2019-12-31 | 2020-05-22 | 山东东岳未来氢能材料有限公司 | Ultrathin perfluorinated sulfonic acid ion exchange membrane for alkali chloride electrolysis and preparation method thereof |
-
2022
- 2022-08-20 CN CN202211001816.7A patent/CN115364905A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054445A (en) * | 2007-03-07 | 2007-10-17 | 山东东岳高分子材料有限公司 | Perfluorinated ion exchange casting enhancement member and preparing method thereof |
| CN104018180A (en) * | 2014-06-06 | 2014-09-03 | 山东东岳高分子材料有限公司 | Zero-polar-distance ion exchange membrane and preparation method thereof |
| CN111074297A (en) * | 2019-12-31 | 2020-04-28 | 山东东岳未来氢能材料有限公司 | Electrolytic cell diaphragm for chlor-alkali industry and preparation method thereof |
| CN111188050A (en) * | 2019-12-31 | 2020-05-22 | 山东东岳未来氢能材料有限公司 | Ultrathin perfluorinated sulfonic acid ion exchange membrane for alkali chloride electrolysis and preparation method thereof |
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