CN110787658A - 一种Pebax/ATP混合基质膜的制备方法 - Google Patents
一种Pebax/ATP混合基质膜的制备方法 Download PDFInfo
- Publication number
- CN110787658A CN110787658A CN201910970474.1A CN201910970474A CN110787658A CN 110787658 A CN110787658 A CN 110787658A CN 201910970474 A CN201910970474 A CN 201910970474A CN 110787658 A CN110787658 A CN 110787658A
- Authority
- CN
- China
- Prior art keywords
- membrane
- mixed matrix
- pebax
- atp
- nmp
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D53/228—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion characterised by specific membranes
-
- 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
- B01D67/0079—Manufacture of membranes comprising organic and inorganic components
-
- 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
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/02—Inorganic material
- B01D71/024—Oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/56—Polyamides, e.g. polyester-amides
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
本发明公开一种聚醚嵌段酰胺和凹凸棒土混合基质膜及其制备方法,具体步骤:1)将Pebax颗粒溶解于N‑甲基吡咯烷酮(NMP)中,回流搅拌形成均一的聚合物溶液;2)将凹凸棒土溶解于一定量的N‑甲基吡咯烷酮(NMP)中,进行超声搅拌混匀;3)混合上述两种溶液,超声处理后,持续回流搅拌一定时间,所得铸膜液浇注至培养皿室温固化成膜。基于凹凸棒土链层状的镁铝硅酸盐粘土矿物ATP和聚醚嵌段酰胺材料Pebax‑1657,采用溶剂共混挥发的制膜方式制备形态均一、混合均匀,具有优良二氧化碳分离性能的混合基质膜。
Description
技术领域
本发明属于膜材料制备技术,具体涉及一种聚醚嵌段酰胺Pebax/凹凸棒土ATP混合基质膜的制备方法。
背景技术
膜分离技术因其操作简单、占地面积小、能耗低等优点,逐渐成为气体分离、能源行业的新兴技术。然而,目前膜材料及其制备工艺制约着膜分离技术的发展。一方面,选择性与渗透性二者之间的相互制约关系是膜材料发展的一个研究难点。含有聚合物有机作为基质和无机材料做为填料的混合基质膜是解决该制约关系的一大途径。另一方面,在混合基质膜的制备过程中,聚合物基质、无机填料和溶剂三者之间的相容性、溶解性决定了最终混合基质膜的性能。
聚醚嵌段酰胺Pebax-1657是具有良好的耐用性、柔韧性和对酸性气体的选择性,是一种有前途的膜制备材料。而凹凸棒土是一种具有链层状结构的镁铝硅酸盐粘土矿物,其中四面体晶片角顶隔一定距离方向颠倒,形成层链状。在四面体条带间形成与链平行的通道,通道横断面约3.7*6.3A°,对动力学直径相当的二氧化碳气体具有快速通过的作用。同时,传统的溶剂挥发法采用乙醇/水作为溶剂,聚合物与其溶解度较差,往往导致制备的混合基质膜性能不佳。基于上述陈述,本方法提出一种以Pebax1657为聚合物基质,ATP为无机填料,在N-甲基吡咯烷酮(NMP)中制备混合基质膜,用于CO2/N2的分离。
发明内容
本发明的目的在于解决现有技术中存在的不足之处,提出了一种基于NMP溶剂,以Pebax-1657为聚合物基质,ATP为无机填料制备用于CO2分离的混合基质膜的方法。
本发明的技术方案是一种Pebax/ATP混合基质膜的制备方法:
S1:铸膜液A的制备:按质量比(6:65)称取Pebax-1657颗粒溶解于NMP中,在125℃的温度下回流搅拌3h,制备成铸膜液A;
S2:铸膜液B的制备:将一定量的ATP置于200℃烘箱中24h,按质量比(3:29)称取ATP粉末溶解于NMP溶液中,超声搅拌处理1h,使无机添加剂均匀分散于溶剂体系中,制备成铸膜液B;
S3:混合基质膜的制备:上述步骤中的铸膜液A、B等比例混合,形成ATP:Pebax:NMP质量比(3:6:94)的铸膜液,超声搅拌处理1h形成均一体系,并在120℃下回流搅拌3h;
S4:膜的干燥:上述溶液倒入平整洁净的四氟培养皿中,置于干燥箱中70℃,10h,挥发溶剂,而后取出置于50℃真空干燥箱中10h,进一步挥发溶剂分子。
与现有技术相比,本发明具有的优点:
1、本发明设计了有机/无机材料的混合基质膜,该混合基质膜不仅具有Pebax材料的机械性能、气体选择性能,同时兼备了ATP的链层状结构对CO2气体的快速通过性,使得该膜气体分离性能优于传统膜。
2、本发明采用NMP作为有机溶剂,聚合物发生较好的溶解,从而形成最低能级的晶格结构;形成更紧密的结晶结构。该膜具备更高的CO2的渗透性能,适用于实际应用。
3、本发明采用ATP作为无机填料,易获取且价格低廉。
附图说明
图1不同压力条件下气体分离性能图
图2两种溶剂NMP、DMF对混合基质膜性能的影响
图3两种溶剂NMP、DMF对混合基质膜FTIR测定的影响
图4两种溶剂NMP、DMF对混合基质膜SEM表征的影响
具体实施方式
以下结合附图和具体实施例来对本发明作进一步的说明。
实施例1单气体测试
通过单一气体测试实验,测定混合基质膜在不同压力条件下的CO2分离性能。分离实验采用恒压变体积的方式测定,通过在膜分离装置上游通入恒定压力的单一气体,气体通过混合基质膜后在下游引起气体体积变化,通过测定单位时间内气体体积的变化计算出气体的渗透性能与选择性能。膜池有效分离面积为8.55cm2,测试温度为40℃,重复试验5次,测定0.10、0.15、0.20、0.25、0.30MPa不同压力下的气体分离性能。
在实施例1的条件下,本发明中的混合基质膜的渗透性达120.20Barrer,CO2/N2选择性达69.31。
实施例2不同溶剂制备方法对比
(1)为验证本发明中,NMP作溶剂能够优化聚合物的晶体结构,NMP与DMF溶剂作为对比溶剂试剂,分别制备混合基质膜,气体分离性能如实施例1中所述。
在实施例2的条件下,相较于DMF,NMP作为溶剂时,如图3、4所示,混合基质膜能够拥有更均一的界面,ATP与Pebax基质的结合度也更高;同时混合基质膜拥有更高的渗透性,达120.20Barrer,远高于DMF作溶剂的混合基质膜(97.20Barrer),且选择性并未发生太大损失(76.48降至69.31)。
Claims (3)
1.一种Pebax/ATP混合基质膜的制备方法,其特征在于:按质量比例3:6:94的添加剂ATP、基质膜Pebax和溶解NMP制备混合基质膜;
将一定量的Pebax溶解于总体积70%的NMP溶剂中,120℃回流3h,形成均一的铸膜液A;
而后将一定量的ATP溶解于总体积30%的NMP溶剂中,超声处理,形成均一的铸膜液B;
之后将铸膜液A、B混合后,经超声处理、而后120℃回流3h制备成最终的铸膜液;
将上述铸膜液倒入干净平整的四氟培养皿中,置于70℃烘箱中干燥10h,而后置于50℃真空干燥箱干燥10h,除去混合基质膜中残留的溶剂分子。
2.根据权利要求1所述的一种Pebax/ATP混合基质膜的制备方法,其特征在于:将溶剂分成两份7:3制备成A、B铸膜液,分别搅拌而后混合,能够提高ATP在混合基质膜中的分散程度。
3.根据权利要求1所述的一种Pebax/ATP混合基质膜的制备方法,其特征在于:溶剂采用NMP,形成最低能级、更紧密的晶格结构。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910970474.1A CN110787658A (zh) | 2019-10-13 | 2019-10-13 | 一种Pebax/ATP混合基质膜的制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201910970474.1A CN110787658A (zh) | 2019-10-13 | 2019-10-13 | 一种Pebax/ATP混合基质膜的制备方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN110787658A true CN110787658A (zh) | 2020-02-14 |
Family
ID=69439117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201910970474.1A Pending CN110787658A (zh) | 2019-10-13 | 2019-10-13 | 一种Pebax/ATP混合基质膜的制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN110787658A (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115282791A (zh) * | 2022-08-03 | 2022-11-04 | 沈阳工业大学 | 一种基于改性三氧化铝与Pebax混合基质膜制备方法及应用 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103406034A (zh) * | 2013-07-30 | 2013-11-27 | 浙江国泰密封材料股份有限公司 | 一种用于膜蒸馏过程的聚醚嵌段酰胺微孔膜的制备方法 |
US20150053610A1 (en) * | 2012-01-30 | 2015-02-26 | California Institute Of Technology | Mixed matrix membranes with embedded polymeric particles and networks and related compositions, methods, and systems |
CN105032216A (zh) * | 2015-07-29 | 2015-11-11 | 南京工业大学 | 一种凹凸棒石-聚醚-b-聚酰胺混合基质膜及制备和应用 |
US20170291147A1 (en) * | 2014-05-08 | 2017-10-12 | Bettergy Corp. | Mixed matrix membranes for olefin/paraffin separation and method of making thereof |
CN110227358A (zh) * | 2019-05-31 | 2019-09-13 | 太原理工大学 | 一种基于二维层状材料的混合基质膜及其制备方法和应用 |
-
2019
- 2019-10-13 CN CN201910970474.1A patent/CN110787658A/zh active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20150053610A1 (en) * | 2012-01-30 | 2015-02-26 | California Institute Of Technology | Mixed matrix membranes with embedded polymeric particles and networks and related compositions, methods, and systems |
CN103406034A (zh) * | 2013-07-30 | 2013-11-27 | 浙江国泰密封材料股份有限公司 | 一种用于膜蒸馏过程的聚醚嵌段酰胺微孔膜的制备方法 |
US20170291147A1 (en) * | 2014-05-08 | 2017-10-12 | Bettergy Corp. | Mixed matrix membranes for olefin/paraffin separation and method of making thereof |
CN105032216A (zh) * | 2015-07-29 | 2015-11-11 | 南京工业大学 | 一种凹凸棒石-聚醚-b-聚酰胺混合基质膜及制备和应用 |
CN110227358A (zh) * | 2019-05-31 | 2019-09-13 | 太原理工大学 | 一种基于二维层状材料的混合基质膜及其制备方法和应用 |
Non-Patent Citations (2)
Title |
---|
MOJGAN ISANEJAD等: ""Pebax membrane for CO2/CH4 separation: Effects of various solvents on morphology and performance"", 《JOURNAL OF APPLIED POLYMER SCIENCE》 * |
王湛: "《膜分离技术基础》", 30 April 2000, 化学工业出版社 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115282791A (zh) * | 2022-08-03 | 2022-11-04 | 沈阳工业大学 | 一种基于改性三氧化铝与Pebax混合基质膜制备方法及应用 |
CN115282791B (zh) * | 2022-08-03 | 2024-04-19 | 沈阳工业大学 | 一种基于改性三氧化铝与Pebax混合基质膜制备方法及应用 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Li et al. | Effects of the porous structure on conductivity of nanocomposite polymer electrolyte for lithium ion batteries | |
CN107158964B (zh) | 一种基于金属有机骨架纳米片和氧化石墨烯的复合膜材料、制备方法及在气体分离上的应用 | |
CN109621739B (zh) | 一种高通量pvdf多孔膜亲水化改性方法 | |
CN103087342B (zh) | 一种氧化石墨烯/pvdf共混阳离子交换膜及其制备方法 | |
Wang et al. | Cation exchange hybrid membranes based on PVA for alkali recovery through diffusion dialysis | |
CN110404424B (zh) | 混合基质膜和制备方法及其应用 | |
CN112221358B (zh) | 改性碳纳米管与金属有机骨架复合材料的聚醚醚酮复合膜及其制备方法和应用 | |
CN105390721B (zh) | 一种磷酸硼包覆碳纳米管复合质子交换膜的制备方法 | |
CN102430343B (zh) | 一种聚偏氟乙烯平板微滤膜的制备方法 | |
CN104779400B (zh) | 一种用于质子交换膜的改性碳纳米管的制备方法 | |
CN102211012A (zh) | 一种锂离子筛膜及其制备方法 | |
CN110787658A (zh) | 一种Pebax/ATP混合基质膜的制备方法 | |
Huang et al. | A preliminary study of polymer inclusion membrane for lutetium (III) separation and membrane regeneration | |
CN110256704B (zh) | 一种柔性导电聚氨酯复合膜的制备方法 | |
Fan et al. | Solid-state synthesis of intrinsically proton-conducting covalent organic framework membrane | |
CN114377562A (zh) | 一种用于co2/ch4气体分离的混合基质膜及其制备方法 | |
CN105503505B (zh) | 分离乙烯中低浓度乙炔的生产工艺 | |
CN109286018B (zh) | 一种超薄二维碳片的制备方法 | |
CN112156660A (zh) | 一种金属有机骨架M-gallate混合基质膜及其制备和应用 | |
CN115253714B (zh) | 一种掺杂二硫化钼纳米片改性材料的混合基质膜及其制备方法和应用 | |
CN109126478B (zh) | 一种高分子分离膜的制备方法 | |
CN113121953B (zh) | 三维整体石墨烯气凝胶-聚亚胺复合材料及其制备方法 | |
CN107055511B (zh) | 一种三维交联碳纳米管及其制备方法 | |
CN113069933B (zh) | 一种分离n,n-二甲基甲酰胺/水混合物的有机/无机复合膜及其制备方法 | |
CN114772594A (zh) | 一种中孔发达活性炭及其制备方法 |
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 | ||
WD01 | Invention patent application deemed withdrawn after publication | ||
WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200214 |