CN105107389A - Preparation method for gel composite separating membrane - Google Patents
Preparation method for gel composite separating membrane Download PDFInfo
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- CN105107389A CN105107389A CN201510505066.0A CN201510505066A CN105107389A CN 105107389 A CN105107389 A CN 105107389A CN 201510505066 A CN201510505066 A CN 201510505066A CN 105107389 A CN105107389 A CN 105107389A
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- composite separating
- polymer
- separating film
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- 239000002131 composite material Substances 0.000 title claims abstract description 38
- 239000012528 membrane Substances 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229920000642 polymer Polymers 0.000 claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000008367 deionised water Substances 0.000 claims abstract description 8
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 8
- 239000004088 foaming agent Substances 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 8
- 239000000499 gel Substances 0.000 claims description 38
- 238000004132 cross linking Methods 0.000 claims description 14
- 108010010803 Gelatin Proteins 0.000 claims description 10
- 229920000159 gelatin Polymers 0.000 claims description 10
- 239000008273 gelatin Substances 0.000 claims description 10
- 235000019322 gelatine Nutrition 0.000 claims description 10
- 235000011852 gelatine desserts Nutrition 0.000 claims description 10
- 229920006393 polyether sulfone Polymers 0.000 claims description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 8
- 239000004800 polyvinyl chloride Substances 0.000 claims description 8
- 230000000873 masking effect Effects 0.000 claims description 7
- 229920002492 poly(sulfone) Polymers 0.000 claims description 7
- 239000004695 Polyether sulfone Substances 0.000 claims description 6
- 238000013019 agitation Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 229920002401 polyacrylamide Polymers 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 229920000036 polyvinylpyrrolidone Polymers 0.000 claims description 5
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 claims description 5
- 239000001267 polyvinylpyrrolidone Substances 0.000 claims description 5
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 claims description 5
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001471 micro-filtration Methods 0.000 claims description 4
- 229920006254 polymer film Polymers 0.000 claims description 4
- 239000000835 fiber Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 238000002156 mixing Methods 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 230000000813 microbial effect Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 abstract description 2
- 108090000623 proteins and genes Proteins 0.000 abstract description 2
- 102000004169 proteins and genes Human genes 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 abstract description 2
- 229920005597 polymer membrane Polymers 0.000 abstract 2
- 238000003756 stirring Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- 230000004907 flux Effects 0.000 description 7
- 239000000017 hydrogel Substances 0.000 description 5
- -1 Kynoar Substances 0.000 description 3
- 230000003373 anti-fouling effect Effects 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000000108 ultra-filtration Methods 0.000 description 3
- 230000010148 water-pollination Effects 0.000 description 3
- 241000233803 Nypa Species 0.000 description 2
- 235000005305 Nypa fruticans Nutrition 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 description 2
- 239000012510 hollow fiber Substances 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000009285 membrane fouling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- QNILTEGFHQSKFF-UHFFFAOYSA-N n-propan-2-ylprop-2-enamide Chemical compound CC(C)NC(=O)C=C QNILTEGFHQSKFF-UHFFFAOYSA-N 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- KWIUHFFTVRNATP-UHFFFAOYSA-N Betaine Natural products C[N+](C)(C)CC([O-])=O KWIUHFFTVRNATP-UHFFFAOYSA-N 0.000 description 1
- 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 description 1
- KWIUHFFTVRNATP-UHFFFAOYSA-O N,N,N-trimethylglycinium Chemical compound C[N+](C)(C)CC(O)=O KWIUHFFTVRNATP-UHFFFAOYSA-O 0.000 description 1
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical compound C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 229920002125 Sokalan® Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229960003237 betaine Drugs 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000007334 copolymerization reaction Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229960003638 dopamine Drugs 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 229920000193 polymethacrylate Polymers 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 229940079827 sodium hydrogen sulfite Drugs 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 229940001584 sodium metabisulfite Drugs 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 229920000428 triblock copolymer Polymers 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a preparation method for a gel composite separating membrane. The preparation method comprises the following steps: 1) mixing a membrane-preparing polymer, a gel polymer, a pore-foaming agent and a solvent, mechanically stirring the mixture to fully dissolve the mixture, and defoaming and filtering the mixture to obtain a casting membrane solution, wherein the casting membrane solution comprises the components in percentage by weight: 10-30% of the membrane-preparing polymer, 1-5% of the gel polymer, 0-10% of the pore-foaming agent and 55-89% of the solvent; 2) coating or extruding the casting membrane solution by using a film forming machine, and immersing the casting membrane solution in a pure water bath to be cured and formed to obtain an initial polymer membrane; and 3) fully cleaning the initial polymer membrane in deionized water and then airing the membrane in air to obtain the gel composite separating membrane. The preparation method disclosed by the invention is simple in process and low in cost, and the obtained gel composite separating membrane has a wide application prospect in membrane separation fields such as sewage treatment, water purification, oil-water separation, protein separation, microbial filtration, dye separation and the like.
Description
Technical field
The invention belongs to functional material and technical field of membrane separation, be specifically related to a kind of preparation method of gel composite separating film.
Background technology
Membrane filtration technique is an energy-efficient filtering technique, for keeping the mechanical strength of diffusion barrier in filter process, generally adopts as membrane materials such as Kynoar, polyvinyl chloride, polysulfones, polyether sulfones.
These membrane body materials are generally faced with the problem of surface nature aspect.On the one hand, membrane body material surface energy is lower, and hydrophobicity is strong, and pollutant is very easily adsorbed in the surface and fenestra of film by hydrophobic interaction, causes fouling membrane, filtration flux is decayed serious.On the other hand; because membrane material polymer segment intermolecular forces is excessively strong, cause dry state to be preserved and make flux minimum, therefore general finished film needs hygrometric state to preserve; avoid air-dry by the protection liquid containing sodium hydrogensulfite and sodium metabisulfite, prevent microbial growth.This brings a lot of inconvenience to the storage of filter membrane and transport, so the film that research preparation can be preserved under dry state is significant.
Blending and modifying is a kind of conventional hydrophilic modification method, and common blending and modifying reagent comprises polyethylene glycol, amphoteric ion polymer, amphipathic nature block polymer, hydrophilic inorganic particles etc.As adopted the polyethylene of polyethylene glycol graft modification as blend modified poly ethylene hollow-fibre membrane in patent CN102002768A; Betaine type amphoteric ionomer blending and modifying pvdf membrane is adopted in patent CN104437122A; Prepare a kind of amphipathic three block copolymer in patent CN102432782A, it can be used as the blended reagent of poly (ether sulfone) film; Adopt the amphipathic graft copolymer of polyvinyl chloride as the hydrophilic modification reagent of Pvc Ultrafiltration Membrane in patent CN101293183; The titanium dioxide nano-particle blending and modifying polyvinylidene fluoride film adopting dopamine to modify in patent CN102614783A.In above-mentioned patent, all adopt the method modified hydrophobic film of in-situ blending, make it that there is hydrophily.Hydrophilic substance be added in the pollution decreased to a certain extent in the film course of work, but their lock water poor-performing, can not assist to keep the flux of dry film, therefore the blend finding a kind of water retention property good has great importance.
Macromolecule hydrogel is hydroaropic substance, and Absorbable rod keep large quantity of moisture.Commercially, cross-linked hydrogel is often used in the industries such as cosmetics, coating, food, in order to water conservation.The hydrogel product of business comprises starch based, cross-linking type polymethacrylates sodium etc.In laboratory research, prepare multiple cross-linked hydrogel, cross-linking type NIPA gellike [P (NIPAm-co-TMSPMA)/Silicahybridmicrogels:Structures, swellingpropertiesandapplicationsinfabricatingmacroporou ssilica, MaterialsChemistryandPhysics, 2013, 138:650-657], cross-linking type NVP gel [Poly (N-vinylpyrrolidinone) Microgels:Preparation, Biocompatibility, andPotentialApplicationasDrugCarriersBiomacromolecules20 14, 15:2285-2293], patent CN102977266A discloses the temperature and pH dual responsiveness gel that are obtained by 4-vinylpridine and NIPA copolymerization, also has cross-linking type carbopol gel in addition, crosslinked polyacrylamide gel etc.But these all come with some shortcomings and shortcoming, need further improvement.
Summary of the invention
The object of the invention is to solve problems of the prior art, and a kind of preparation method of gel composite separating film is provided, the hydratability of mechanical performance good for membrane body with gelatin polymer excellence is combined, make prepared gel composite separating film while the traditional phase inversion membrane mechanical strength of maintenance, possess again excellent hydrophily, moisture retention and antifouling property, Dry storage and transport can be carried out easily.Concrete technical scheme of the present invention is:
A kind of gel composite separating film preparation method, comprises the steps:
1) masking polymer, gelatin polymer, pore-foaming agent are mixed with solvent, fully dissolve through mechanical agitation, obtain casting solution after deaeration, filtration, each component weight percent content is as follows: masking polymer is 10 ~ 30%; Gelatin polymer is 1 ~ 5%; Pore-foaming agent is 0 ~ 10%; Solvent is 55 ~ 89%;
2) casting solution be coated with through film-forming machine or extrude, immersing curing molding in pure water bath, obtain nascent polymer film;
3) nascent polymer film is fully cleaned in deionized water, then dry in atmosphere, obtain gel composite separating film.
Described masking polymer is any one in Kynoar, polyvinyl chloride, polysulfones, polyether sulfone.
Described gelatin polymer is the one in crosslinked polyacrylamide, cross linked sodium polyacrylate, cross-linking type SANWET.
Described pore-foaming agent is polyethylene glycol or polyvinylpyrrolidone.
Described solvent is the one in DMA, DMF, 1-METHYLPYRROLIDONE.
The shape of described gel composite separating film is Flat Membrane or hollow-fibre membrane.
Described gel composite separating film is microfiltration membranes, milipore filter or NF membrane.
The present invention is to have the cross-linking type gelatin polymer of high water absorbing capacity as masking additive, polymer separation film is prepared by phase inversion, this diffusion barrier by Kynoar, polyvinyl chloride, polysulfones or polyether sulfone as main body material of preparing, form stephanoporate framework, swelling gelatin polymer is dispersed in stephanoporate framework, forms hydrone through passage.The present invention prepares gel composite separating film, by cross-linking type hydrogel and conventional membrane body material blended, due to the hydratability of gelatin polymer excellence, can water effective be remained in fenestra, thus prepared gel composite separating film can keep the mechanical strength of traditional phase inversion membrane material, there is again excellent hydrophily, moisture retention and antifouling property, Dry storage and transport can be carried out easily.This film-forming method technique is simple, and cost is low, and the gel composite separating film obtained has broad application prospects in UF membrane fields such as sewage disposal, purification of water quality, water-oil separating, Separation of Proteins, microbe filter, dye separation.
Detailed description of the invention
Introduce specific embodiments of the invention below, but the present invention is not by the restriction of embodiment.
The characterizing method of gel composite separation membrane structure and performance in the present invention:
Antifouling property is tested: cut diaphragm, and in flux tester, with pure water precompressed 30 minutes (min) under 0.2 MPa (MPa), then run under 0.1MPa, the pure water flux measured time 1 hour (h) is designated as J
w1(rise/square metre hour, L/m
2h); Afterwards, substitute deionized water with the BSA solution that concentration is 1.0 grams per liters (g/L), after running 2h under 0.1MPa, during 2h, flux is designated as J
p(L/m
2h); Diaphragm after oscillation cleaning 20min, is again measured pure water flux, is designated as J in pure water under 0.1MPa
w2.Gross contamination Rt, reversible membrane fouling Rr, irreversible membrane fouling Rir, can use three formulae discovery below respectively, each numerical value is larger, illustrates that pollution is more serious.
Rt=1-J
p/J
w1
Rr=(J
w2-J
p)/J
w1
Rir=(J
w1-J
w2)/J
w1
Water-retaining property is tested: film is soaked in pure water after 30min, takes out and takes diaphragm 1g; Then film is placed in 25 DEG C without after cross-ventilated environment 24h, again measuring weight is Wg.Water-retaining property embodies by the value of W, and the larger explanation Water-saving effect of W value is better.
Embodiment 1:
(1) concentration requirement of according to the form below 1 reference numeral, mixes Kynoar, crosslinked polyacrylamide, polyethylene glycol with DMA, fully dissolves through mechanical agitation, obtains casting solution after deaeration, filtration; (2) casting solution is coated with through film-forming machine, immerses curing molding in pure water bath, obtain flat micro-filtration; (3) flat micro-filtration is fully cleaned in deionized water, then dry in atmosphere, obtain gel composite separating film.
Table 1.1: the preparation condition of Kynoar/crosslinked polyacrylamide gel composite separating film
Table 1.2: Kynoar/crosslinked polyacrylamide gel composite separating film performance data
Numbering | J w1(L/m 2h) | J p(L/m 2h) | J w2(L/m 2h) | Rt(%) | Rr(%) | Rir(%) | W(g) |
1-1 | 280.5 | 56.1 | 242.6 | 80 | 66.5 | 13.5 | 0.78 |
1-2 | 300.4 | 45.06 | 264.4 | 85 | 73 | 12 | 0.83 |
1-3 | 317.6 | 54 | 284.6 | 83 | 72.6 | 10.4 | 0.85 |
Embodiment 2:
(1) concentration requirement of according to the form below 2 reference numeral, mixes polyvinyl chloride, cross linked sodium polyacrylate, polyvinylpyrrolidone with DMF, fully dissolves through mechanical agitation, obtains casting solution after deaeration, filtration; (2) casting solution is extruded through film-forming machine, immerse curing molding in pure water bath, obtain hollow fiber ultrafiltration film; (3) hollow fiber ultrafiltration film is fully cleaned in deionized water, then dry in atmosphere, obtain gel composite separating film.
Table 2.1: the preparation condition of polyvinyl chloride/cross linked sodium polyacrylate gel composite separating film
Table 2.2: polyvinyl chloride/cross linked sodium polyacrylate gel composite separating film performance data
Numbering | J w1(L/m 2h) | J p(L/m 2h) | J w2(L/m 2h) | Rt(%) | Rr(%) | Rir(%) | W(g) |
2-1 | 60.7 | 13 | 45.9 | 78.6 | 54.2 | 24.4 | 0.85 |
2-2 | 65 | 15.2 | 48 | 76.6 | 50.5 | 26.1 | 0.87 |
2-3 | 56.8 | 11.2 | 42.4 | 80.3 | 54.9 | 25.4 | 0.91 |
Embodiment 3:
(1) concentration requirement of according to the form below 3 reference numeral, mixes polysulfones, cross-linking type SANWET, polyvinylpyrrolidone with 1-METHYLPYRROLIDONE, fully dissolves through mechanical agitation, obtains casting solution after deaeration, filtration; (2) casting solution is coated with through film-forming machine, immerses curing molding in pure water bath, obtain dull and stereotyped NF membrane; (3) dull and stereotyped NF membrane is fully cleaned in deionized water, then dry in atmosphere, obtain gel composite separating film.
Table 3.1: the preparation condition of polysulfones/cross-linking type SANWET gel composite separating film
Table 3.2: polysulfones/cross-linking type SANWET gel composite separating film performance data
Numbering | J w1(L/m 2h) | J p(L/m 2h) | J w2(L/m 2h) | Rt(%) | Rr(%) | Rir(%) | W(g) |
3-1 | 12.5 | 4.9 | 10.4 | 60.8 | 44 | 16.8 | 0.88 |
3-2 | 10.2 | 4 | 8.7 | 60.8 | 46.1 | 14.7 | 0.90 |
3-3 | 8.3 | 2.8 | 6.6 | 66.3 | 45.8 | 20.5 | 0.95 |
Embodiment 4:
(1) concentration requirement of according to the form below 4 reference numeral, mixes polyether sulfone, cross-linking type SANWET, polyvinylpyrrolidone with 1-METHYLPYRROLIDONE, fully dissolves through mechanical agitation, obtains casting solution after deaeration, filtration; (2) casting solution is extruded through film-forming machine, immerse curing molding in pure water bath, obtain hollow NF membrane; (3) hollow NF membrane is fully cleaned in deionized water, then dry in atmosphere, obtain gel composite separating film.
Table 4.1: the preparation condition of polyether sulfone/cross-linking type SANWET gel composite separating film
Table 4.2: polyether sulfone/cross-linking type SANWET gel composite separating film performance data
Numbering | J w1(L/m 2h) | J p(L/m 2h) | J w2(L/m 2h) | Rt(%) | Rr(%) | Rir(%) | W(g) |
4-1 | 9.5 | 4 | 6.6 | 57.9 | 27.4 | 30.5 | 0.88 |
4-2 | 8.2 | 2 | 4.7 | 75.6 | 32.9 | 42.7 | 0.93 |
4-3 | 6.3 | 1.4 | 2.6 | 77.8 | 19 | 58.8 | 0.96 |
Claims (7)
1. a gel composite separating film preparation method, is characterized in that, comprises the steps:
1) masking polymer, gelatin polymer, pore-foaming agent are mixed with solvent, fully dissolve through mechanical agitation, obtain casting solution after deaeration, filtration, each component weight percent content is as follows: masking polymer is 10 ~ 30%; Gelatin polymer is 1 ~ 5%; Pore-foaming agent is 0 ~ 10%; Solvent is 55 ~ 89%;
2) casting solution be coated with through film-forming machine or extrude, immersing curing molding in pure water bath, obtain nascent polymer film;
3) nascent polymer film is fully cleaned in deionized water, then dry in atmosphere, obtain gel composite separating film.
2. gel composite separating film preparation method according to claim 1, is characterized in that, described masking polymer is any one in Kynoar, polyvinyl chloride, polysulfones, polyether sulfone.
3. a kind of gel composite separating film according to claim 1 and preparation method thereof, is characterized in that, described gelatin polymer is the one in crosslinked polyacrylamide, cross linked sodium polyacrylate, cross-linking type SANWET.
4. gel composite separating film preparation method according to claim 1, is characterized in that, described pore-foaming agent is polyethylene glycol or polyvinylpyrrolidone.
5. gel composite separating film preparation method according to claim 1, is characterized in that, described solvent is the one in DMA, DMF, 1-METHYLPYRROLIDONE.
6. gel composite separating film preparation method according to claim 1, is characterized in that, the shape of described gel composite separating film is Flat Membrane or hollow-fibre membrane.
7. gel composite separating film preparation method according to claim 1, is characterized in that, described gel composite separating film is microfiltration membranes, milipore filter or NF membrane.
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104607068A (en) * | 2015-01-20 | 2015-05-13 | 苏州信望膜技术有限公司 | Bio-adhesion-resistant porous separation membrane as well as preparation method and application thereof |
CN106745507A (en) * | 2016-12-30 | 2017-05-31 | 常州碳星科技有限公司 | A kind of resistant to pollution oil-water separation mesh film and preparation method thereof |
CN107149882A (en) * | 2016-03-02 | 2017-09-12 | 天津工业大学 | A kind of Kynoar pollution-resistant membrane and preparation method thereof |
CN114917764A (en) * | 2022-04-29 | 2022-08-19 | 浙江理工大学 | Method for preparing high-selectivity high-flux PES ultrafiltration membrane by utilizing monomer self-crosslinking |
-
2015
- 2015-08-17 CN CN201510505066.0A patent/CN105107389B/en active Active
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN104607068A (en) * | 2015-01-20 | 2015-05-13 | 苏州信望膜技术有限公司 | Bio-adhesion-resistant porous separation membrane as well as preparation method and application thereof |
CN104607068B (en) * | 2015-01-20 | 2017-04-12 | 苏州信望膜技术有限公司 | Bio-adhesion-resistant porous separation membrane as well as preparation method and application thereof |
CN107149882A (en) * | 2016-03-02 | 2017-09-12 | 天津工业大学 | A kind of Kynoar pollution-resistant membrane and preparation method thereof |
CN107149882B (en) * | 2016-03-02 | 2019-11-08 | 天津工业大学 | A kind of Kynoar pollution-resistant membrane and preparation method thereof |
CN106745507A (en) * | 2016-12-30 | 2017-05-31 | 常州碳星科技有限公司 | A kind of resistant to pollution oil-water separation mesh film and preparation method thereof |
CN114917764A (en) * | 2022-04-29 | 2022-08-19 | 浙江理工大学 | Method for preparing high-selectivity high-flux PES ultrafiltration membrane by utilizing monomer self-crosslinking |
CN114917764B (en) * | 2022-04-29 | 2023-10-24 | 浙江理工大学 | Method for preparing high-selectivity high-flux PES (polyether sulfone) ultrafiltration membrane by using monomer self-crosslinking |
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