CN113828168A - 一种耐溶剂正渗透复合膜及其制备方法和应用 - Google Patents
一种耐溶剂正渗透复合膜及其制备方法和应用 Download PDFInfo
- Publication number
- CN113828168A CN113828168A CN202111097715.XA CN202111097715A CN113828168A CN 113828168 A CN113828168 A CN 113828168A CN 202111097715 A CN202111097715 A CN 202111097715A CN 113828168 A CN113828168 A CN 113828168A
- Authority
- CN
- China
- Prior art keywords
- forward osmosis
- solvent
- porous support
- support layer
- composite membrane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000009292 forward osmosis Methods 0.000 title claims abstract description 47
- 239000002131 composite material Substances 0.000 title claims abstract description 44
- 239000002904 solvent Substances 0.000 title claims abstract description 43
- 239000012528 membrane Substances 0.000 title claims abstract description 35
- 238000002360 preparation method Methods 0.000 title description 6
- 238000000926 separation method Methods 0.000 claims abstract description 26
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003960 organic solvent Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 9
- PEVRKKOYEFPFMN-UHFFFAOYSA-N 1,1,2,3,3,3-hexafluoroprop-1-ene;1,1,2,2-tetrafluoroethene Chemical compound FC(F)=C(F)F.FC(F)=C(F)C(F)(F)F PEVRKKOYEFPFMN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000004952 Polyamide Substances 0.000 claims abstract description 7
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 7
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 7
- 229920002647 polyamide Polymers 0.000 claims abstract description 7
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 5
- 239000003814 drug Substances 0.000 claims abstract description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims abstract description 3
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 150000001298 alcohols Chemical class 0.000 claims abstract description 3
- 229940079593 drug Drugs 0.000 claims abstract description 3
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 claims abstract description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 29
- 239000000243 solution Substances 0.000 claims description 18
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 16
- 239000011259 mixed solution Substances 0.000 claims description 14
- 235000019441 ethanol Nutrition 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 11
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 8
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 claims description 4
- UWCPYKQBIPYOLX-UHFFFAOYSA-N benzene-1,3,5-tricarbonyl chloride Chemical compound ClC(=O)C1=CC(C(Cl)=O)=CC(C(Cl)=O)=C1 UWCPYKQBIPYOLX-UHFFFAOYSA-N 0.000 claims description 4
- 238000007664 blowing Methods 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229940018564 m-phenylenediamine Drugs 0.000 claims description 4
- 238000006011 modification reaction Methods 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 2
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 claims description 2
- XTUSEBKMEQERQV-UHFFFAOYSA-N propan-2-ol;hydrate Chemical compound O.CC(C)O XTUSEBKMEQERQV-UHFFFAOYSA-N 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 230000007774 longterm Effects 0.000 claims 1
- 239000005456 alcohol based solvent Substances 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 20
- 239000004698 Polyethylene Substances 0.000 description 5
- KIPLYOUQVMMOHB-MXWBXKMOSA-L [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O Chemical compound [Ca++].CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O.CN(C)[C@H]1[C@@H]2[C@@H](O)[C@H]3C(=C([O-])[C@]2(O)C(=O)C(C(N)=O)=C1O)C(=O)c1c(O)cccc1[C@@]3(C)O KIPLYOUQVMMOHB-MXWBXKMOSA-L 0.000 description 4
- 238000009295 crossflow filtration Methods 0.000 description 4
- VYFYYTLLBUKUHU-UHFFFAOYSA-N dopamine Chemical compound NCCC1=CC=C(O)C(O)=C1 VYFYYTLLBUKUHU-UHFFFAOYSA-N 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- KCBAIEZSAJCIEW-UHFFFAOYSA-M lithium;ethanol;chloride Chemical compound [Li+].[Cl-].CCO KCBAIEZSAJCIEW-UHFFFAOYSA-M 0.000 description 4
- 230000014759 maintenance of location Effects 0.000 description 4
- 229940063650 terramycin Drugs 0.000 description 4
- 229960003638 dopamine Drugs 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- B01D69/12—Composite membranes; Ultra-thin membranes
- B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/002—Forward osmosis or direct osmosis
-
- 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
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
- B01D69/105—Support pretreatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/24—Mechanical properties, e.g. strength
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Manufacturing & Machinery (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本发明公开了一种耐溶剂正渗透复合膜,该正渗透复合膜具有由分离层和多孔支撑层构成的上下两层复合结构,所述的分离层的材料为聚酰胺,所述的多孔支撑层的材料为高密度聚乙烯、聚四氟乙烯和全氟乙烯‑丙烯共聚物中的至少一种。本发明耐溶剂正渗透复合膜具有溶剂稳定性优异、机械性能强、使用寿命长等特点,能够长期稳定在醇类、二甲基甲酰胺、二甲基乙酰胺、N‑甲基吡咯烷酮、二甲基亚砜、四氢呋喃等有机溶剂中,在有机溶剂的正渗透分离过程中,尤其是醇类溶剂的正渗透分离过程和醇类溶剂中的药物浓缩过程中具有良好的应用前景。
Description
技术领域
本发明涉及正渗透膜分离技术领域,具体是一种耐溶剂正渗透复合膜及其制备方法和应用。
背景技术
正渗透技术作为一项水处理技术,被广泛应用于废水处理、海水淡化和果汁浓缩等领域。但现有商业化的正渗透复合膜为三层结构:选择分离层、多孔支撑层以及无纺布衬底。其中多孔支撑层大多采用聚砜、聚醚砜等材料,该原料长期依赖进口,价格较高,且无法长期在有机溶剂环境下稳定运行,导致其在有机溶剂环境下稳定性差。为了解决现有商业化正渗透复合膜的有机溶剂稳定性差和成本较高等问题,亟需开发一种耐有机溶剂、多孔、成本低、机械性能强的正渗透复合膜,取代现有的商业化正渗透复合膜,降低正渗透复合膜的生产成本,以便于实现大规模的商业化生产,以及拓展有机溶剂分离过程中的正渗透应用。
发明内容
本发明所要解决的技术问题是,针对现有技术的不足,提供一种耐溶剂正渗透复合膜及其制备方法和应用。
本发明解决上述技术问题所采用的技术方案为:一种耐溶剂正渗透复合膜,该正渗透复合膜具有由分离层和多孔支撑层构成的上下两层复合结构,所述的分离层的材料为聚酰胺,所述的多孔支撑层的材料为高密度聚乙烯、聚四氟乙烯和全氟乙烯-丙烯共聚物中的至少一种。
本发明耐溶剂正渗透复合膜,其多孔支撑层具有耐溶剂稳定性、高孔隙率、高机械强度等特点,与多孔支撑层复合的分离层具有耐溶剂稳定性、高溶剂渗透性、高溶质选择性等特点。本发明耐溶剂正渗透复合膜具有溶剂稳定性优异、机械性能强、使用寿命长等特点,在有机溶剂的正渗透分离过程中,尤其是醇类溶剂的正渗透分离过程中具有良好的应用前景。
上述正渗透复合膜能够长期稳定在以下有机溶剂中:醇类、二甲基甲酰胺、二甲基乙酰胺、N-甲基吡咯烷酮、二甲基亚砜或四氢呋喃。
上述耐溶剂正渗透复合膜的制备方法,包括以下步骤:
1)以高密度聚乙烯、聚四氟乙烯和全氟乙烯-丙烯共聚物中的至少一种材料为原料制备多孔支撑层;
2)对步骤1)得到的多孔支撑层进行亲水性改性,并用无水乙醇和去离子水清洗改性反应后的多孔支撑层表面,再将洗净后的多孔支撑层浸泡在异丙醇中12h,备用;
3)将步骤2)得到的多孔支撑层从异丙醇中取出,放入浓度为3.4wt%的间苯二胺的水-溶剂混合溶液中反应20min,再将多孔支撑层取出并利用气刀吹掉多孔支撑层表面多余的溶液,然后将多孔支撑层放入浓度为0.15wt%的均苯三甲酰氯的正己烷溶液中2min,最后取出并在烘箱中60℃热处理20min,即得到具有由分离层和多孔支撑层构成的上下两层复合结构的正渗透复合膜。
作为优选,所述的水-溶剂混合溶液为水-乙醇混合溶液、水-甲醇混合溶液或水-异丙醇混合溶液。
上述耐溶剂正渗透复合膜在有机溶剂正渗透分离过程中的应用。
作为优选,所述的有机溶剂正渗透分离过程为醇类溶剂的回收过程或醇类溶剂中的药物浓缩过程。
与现有技术相比,本发明具有如下优点:本发明耐溶剂正渗透复合膜具有溶剂稳定性优异、机械性能强、使用寿命长等特点,在有机溶剂的正渗透分离过程中,尤其是醇类溶剂的正渗透分离过程和醇类溶剂中的药物浓缩过程中具有良好的应用前景。
具体实施方式
以下结合实施例对本发明作进一步详细描述。
实施例1的耐溶剂正渗透复合膜,具有由聚酰胺(PA)分离层和高密度聚乙烯(PE)多孔支撑层构成的上下两层复合结构,该耐溶剂正渗透复合膜的制备方法,包括以下步骤:
1)以高密度聚乙烯(PE)为原料,利用商业已知的湿法或干法工艺制备多孔支撑层;
2)对步骤1)得到的多孔支撑层进行高压电晕放电改性,电晕处理的电压介于1~5kv之间,处理时间为3~5min,并用无水乙醇和去离子水清洗改性反应后的多孔支撑层表面,再将洗净后的多孔支撑层浸泡在异丙醇中12h,备用;
3)将步骤2)得到的多孔支撑层从异丙醇中取出,放入浓度为3.4wt%的间苯二胺的水-乙醇混合溶液中反应20min,再将多孔支撑层取出并利用气刀吹掉多孔支撑层表面多余的溶液,然后将多孔支撑层放入浓度为0.15wt%的均苯三甲酰氯的正己烷溶液中2min,最后取出并在烘箱中60℃热处理20min,即得到具有由分离层(<100nm)和多孔支撑层(<10μm)构成的上下两层复合结构的耐溶剂正渗透PA-PE复合膜。
在25℃下,对所制备的耐溶剂正渗透复合膜进行性能评价。
测试方式1为:采用错流过滤的方式,以无水乙醇为原料液,以1mol L-1的氯化锂-乙醇溶液为驱动液,测试时长为10h,测试三次取平均值,测试结果如表1所示。
表1
测试方式2为:采用错流过滤的方式,以100ppm土霉素-乙醇溶液为原料液,以1molL-1的氯化锂-乙醇溶液为驱动液,测试时长为24h,测试三次取平均值,测试结果如表2所示。
表2
样品 | 乙醇通量(L m<sup>-2</sup>h<sup>-1</sup>) | 土霉素截留率(%) |
PA-PE膜 | 1.80±0.08 | 99.52 |
耐溶剂稳定性测试:将制备的耐溶剂正渗透复合膜浸泡在二甲基甲酰胺(DMF)溶剂中30天,取出后按测试方式2重新进行性能测试,测试结果如表3所示。
表3
样品 | 乙醇通量(L m<sup>-2</sup>h<sup>-1</sup>) | 土霉素截留率(%) |
PA-PE膜 | 2.10±0.11 | 98.83 |
实施例2的耐溶剂正渗透复合膜,具有由聚酰胺(PA)分离层和全氟乙烯-丙烯共聚物(FEP)多孔支撑层构成的上下两层复合结构,该耐溶剂正渗透复合膜的制备方法,包括以下步骤:
1)以全氟乙烯-丙烯共聚物(FEP)为原料,利用商业已知的熔融挤出拉伸工艺制备多孔支撑层;
2)对步骤1)得到的多孔支撑层进行化学改性,即:将FEP多孔支撑层浸入到2g L-1的多巴胺的水-乙醇混合溶液中,其中乙醇浓度为10ppm,在烘箱中37℃下反应24h后取出多孔支撑层,用无水乙醇和去离子水清洗改性反应后的多孔支撑层表面,再将洗净后的多孔支撑层浸泡在异丙醇中12h,备用;
3)将步骤2)得到的多孔支撑层从异丙醇中取出,放入浓度为3.4wt%的间苯二胺的水-乙醇混合溶液中反应20min,再将多孔支撑层取出并利用气刀吹掉多孔支撑层表面多余的溶液,然后将多孔支撑层放入浓度为0.15wt%的均苯三甲酰氯的正己烷溶液中2min,最后取出并在烘箱中60℃热处理20min,即得到具有由分离层(<150nm)和多孔支撑层(<30μm)构成的上下两层复合结构的耐溶剂正渗透PA-FEP复合膜。
在25℃下,对所制备的耐溶剂正渗透复合膜进行性能评价。
测试方式1为:采用错流过滤的方式,以无水乙醇为原料液,以1mol L-1的氯化锂-乙醇溶液为驱动液,测试时长为10h,测试三次取平均值,测试结果如表4所示。
表4
测试方式2为:采用错流过滤的方式,以100ppm土霉素-乙醇溶液为原料液,以1molL-1的氯化锂-乙醇溶液为驱动液,测试时长为24h,测试三次取平均值,测试结果如表5所示。
表5
样品 | 乙醇通量(L m<sup>-2</sup>h<sup>-1</sup>) | 土霉素截留率(%) |
PA-FEP膜 | 2.80±0.07 | 98.48 |
耐溶剂稳定性测试:将制备的耐溶剂正渗透复合膜浸泡在二甲基甲酰胺(DMF)溶剂中30天,取出后按测试方式2重新进行性能测试,测试结果如表6所示。
表6
样品 | 乙醇通量(L m<sup>-2</sup>h<sup>-1</sup>) | 土霉素截留率(%) |
PA-FEP膜 | 3.60±0.13 | 97.63 |
以上内容仅仅是对本发明的举例和说明,所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,只要不偏离发明的构思或者超越本权利要求书所定义的范围,均应属于本发明的保护范围。
Claims (6)
1.一种耐溶剂正渗透复合膜,其特征在于,该正渗透复合膜具有由分离层和多孔支撑层构成的上下两层复合结构,所述的分离层的材料为聚酰胺,所述的多孔支撑层的材料为高密度聚乙烯、聚四氟乙烯和全氟乙烯-丙烯共聚物中的至少一种。
2.根据权利要求1所述的耐溶剂正渗透复合膜,其特征在于,该正渗透复合膜能够长期稳定在以下有机溶剂中:醇类、二甲基甲酰胺、二甲基乙酰胺、N-甲基吡咯烷酮、二甲基亚砜或四氢呋喃。
3.权利要求1或2所述的耐溶剂正渗透复合膜的制备方法,其特征在于,包括以下步骤:
1)以高密度聚乙烯、聚四氟乙烯和全氟乙烯-丙烯共聚物中的至少一种材料为原料制备多孔支撑层;
2)对步骤1)得到的多孔支撑层进行亲水性改性,并用无水乙醇和去离子水清洗改性反应后的多孔支撑层表面,再将洗净后的多孔支撑层浸泡在异丙醇中12h,备用;
3)将步骤2)得到的多孔支撑层从异丙醇中取出,放入浓度为3.4wt%的间苯二胺的水-溶剂混合溶液中反应20min,再将多孔支撑层取出并利用气刀吹掉多孔支撑层表面多余的溶液,然后将多孔支撑层放入浓度为0.15wt%的均苯三甲酰氯的正己烷溶液中2min,最后取出并在烘箱中60℃热处理20min,即得到具有由分离层和多孔支撑层构成的上下两层复合结构的正渗透复合膜。
4.根据权利要求3所述的制备方法,其特征在于,所述的水-溶剂混合溶液为水-乙醇混合溶液、水-甲醇混合溶液或水-异丙醇混合溶液。
5.权利要求1所述的耐溶剂正渗透复合膜在有机溶剂正渗透分离过程中的应用。
6.根据权利要求5所述的应用,其特征在于,所述的有机溶剂正渗透分离过程为醇类溶剂的回收过程或醇类溶剂中的药物浓缩过程。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111097715.XA CN113828168B (zh) | 2021-09-18 | 2021-09-18 | 一种耐溶剂正渗透复合膜及其制备方法和应用 |
PCT/CN2022/095102 WO2023040336A1 (zh) | 2021-09-18 | 2022-05-26 | 一种耐溶剂正渗透复合膜及其制备方法和应用 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202111097715.XA CN113828168B (zh) | 2021-09-18 | 2021-09-18 | 一种耐溶剂正渗透复合膜及其制备方法和应用 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113828168A true CN113828168A (zh) | 2021-12-24 |
CN113828168B CN113828168B (zh) | 2024-01-30 |
Family
ID=78959807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202111097715.XA Active CN113828168B (zh) | 2021-09-18 | 2021-09-18 | 一种耐溶剂正渗透复合膜及其制备方法和应用 |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN113828168B (zh) |
WO (1) | WO2023040336A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023040336A1 (zh) * | 2021-09-18 | 2023-03-23 | 宁波大学 | 一种耐溶剂正渗透复合膜及其制备方法和应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106621855A (zh) * | 2017-01-18 | 2017-05-10 | 南京湶膜科技有限公司 | 反渗透复合膜制备方法及反渗透复合膜 |
CN108295667A (zh) * | 2017-01-13 | 2018-07-20 | 宁波大学 | 一种基于大孔径基膜的正渗透复合膜及其制备方法 |
CN112535957A (zh) * | 2020-11-10 | 2021-03-23 | 同济大学 | 一种有机溶剂正渗透用带中间层复合膜及其制备方法和应用 |
CN112742221A (zh) * | 2019-10-29 | 2021-05-04 | 珠海恩捷新材料科技有限公司 | 基于亲水改性聚烯烃微孔基底的正渗透膜及制备方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012047282A2 (en) * | 2010-09-30 | 2012-04-12 | Porifera Inc. | Thin film composite membranes for forward osmosis, and their preparation methods |
EP2736959A4 (en) * | 2011-07-26 | 2015-06-17 | Hydration Systems Llc | METHOD FOR IMPROVING PERFORMANCE OF DIRECT OSMOSIS MEMBRANE |
CN104548967B (zh) * | 2014-12-24 | 2017-01-11 | 哈尔滨工业大学 | 一种高选择性正渗透聚酰胺复合膜的原位制备方法 |
CN106582315A (zh) * | 2016-11-29 | 2017-04-26 | 华中科技大学 | 一种聚酰胺复合膜及其制备方法 |
CN109012241A (zh) * | 2018-09-13 | 2018-12-18 | 中煤能源研究院有限责任公司 | 一种具有分离功能的复合正渗透膜及其制备方法 |
CN113828168B (zh) * | 2021-09-18 | 2024-01-30 | 宁波大学 | 一种耐溶剂正渗透复合膜及其制备方法和应用 |
-
2021
- 2021-09-18 CN CN202111097715.XA patent/CN113828168B/zh active Active
-
2022
- 2022-05-26 WO PCT/CN2022/095102 patent/WO2023040336A1/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108295667A (zh) * | 2017-01-13 | 2018-07-20 | 宁波大学 | 一种基于大孔径基膜的正渗透复合膜及其制备方法 |
CN106621855A (zh) * | 2017-01-18 | 2017-05-10 | 南京湶膜科技有限公司 | 反渗透复合膜制备方法及反渗透复合膜 |
CN112742221A (zh) * | 2019-10-29 | 2021-05-04 | 珠海恩捷新材料科技有限公司 | 基于亲水改性聚烯烃微孔基底的正渗透膜及制备方法 |
CN112535957A (zh) * | 2020-11-10 | 2021-03-23 | 同济大学 | 一种有机溶剂正渗透用带中间层复合膜及其制备方法和应用 |
Non-Patent Citations (2)
Title |
---|
YAYU WEI ET AL.,: "Simultaneous phase-inversion and crosslinking in organic coagulation bath to prepare organic solvent forward osmosis membranes", 《JOURNAL OF MEMBRANE SCIENCE》, vol. 620, pages 118829 * |
高林娜 等: "聚四氟乙烯及其共聚物微孔膜的制备和应用进展", 《浙江化工》, vol. 51, no. 11, pages 1 - 7 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023040336A1 (zh) * | 2021-09-18 | 2023-03-23 | 宁波大学 | 一种耐溶剂正渗透复合膜及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
WO2023040336A1 (zh) | 2023-03-23 |
CN113828168B (zh) | 2024-01-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9314736B2 (en) | Separation composite membrane and separating membrane module using the same | |
CN100402133C (zh) | 一种聚合物中空纤维复合纳滤膜的制备方法 | |
CN110053334B (zh) | 一种纳米纤维复合膜及其制备方法和应用 | |
Jiang et al. | A facile direct spray-coating of Pebax® 1657: Towards large-scale thin-film composite membranes for efficient CO2/N2 separation | |
CA1316311C (en) | Anisotropic membranes for gas separation | |
CN109925896B (zh) | 一种杂化复合膜、制备方法及其应用 | |
KR101716007B1 (ko) | 고성능 폴리아미드계 건식 수처리 분리막 및 그 제조방법 | |
CN109351190A (zh) | 一种交联含氟聚酰胺复合耐溶剂纳滤膜、制备方法及其应用 | |
EP3348323A1 (en) | Film-forming stock solution for use in non-solvent-induced phase separation methods, and method for producing porous hollow fiber membrane using same | |
KR20160026070A (ko) | 기체분리막의 제조 방법 | |
KR102068656B1 (ko) | 나노물질층이 구비된 역삼투용 나노복합막의 제조방법 및 이에 따라 제조된 역삼투용 나노복합막 | |
KR20150079176A (ko) | 나노섬유웹층을 포함하는 역삼투막 및 그 제조방법 | |
Salehian et al. | Two-dimensional (2D) particle coating on membranes for pervaporation dehydration of isopropanol: A new approach to seal defects and enhance separation performance | |
KR101972172B1 (ko) | 고기능성 역삼투막 및 그 제조방법 | |
CN113828168B (zh) | 一种耐溶剂正渗透复合膜及其制备方法和应用 | |
CN110662598A (zh) | 气体分离膜、气体分离膜元件、气体分离装置和气体分离方法 | |
CN109647222B (zh) | 一种利用单宁酸改性基膜制备兼具高通量高截留率芳香聚酰胺复合反渗透膜的方法 | |
KR20150079213A (ko) | 내압성이 우수한 역삼투막 및 이의 제조방법 | |
KR101659122B1 (ko) | 염제거율 및 투과유량 특성이 우수한 폴리아미드계 수처리 분리막 및 그 제조방법 | |
KR101467906B1 (ko) | 금속이온 착화합물을 이용한 투과증발막 제조 방법 | |
Haraya et al. | Asymmetric capillary membrane of a carbon molecular sieve | |
KR102041657B1 (ko) | 수처리 분리막의 제조방법 및 이에 의하여 제조된 수처리 분리막 및 수처리 분리막을 포함하는 수처리 모듈 | |
CN114534514B (zh) | 一种含单宁酸-铜络合网络中间层的复合耐溶剂膜、制备方法及应用 | |
KR20120077997A (ko) | 폴리아마이드계 역삼투 분리막의 제조방법 및 그에 의해 제조된 폴리아마이드계 역삼투 분리막 | |
KR20180107605A (ko) | 고염배제율 역삼투막 및 그 제조방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |