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公开(公告)号：US20210339207A1
公开(公告)日：2021-11-04
申请号：US17374506
申请日：2021-07-13
摘要： A method of making a polymer membrane, the method including providing a first monomer solution having a first solvent, a second monomer solution having a second solvent, and a substrate having a surface, and including electrospraying the first monomer solution onto the substrate surface and electrospraying the second monomer solution onto the substrate surface to form the polymer membrane on at least a portion of the substrate surface.
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公开(公告)号：US10112153B2
公开(公告)日：2018-10-30
申请号：US14389799
申请日：2013-03-15
摘要： Provided are thin film composite membrane structures comprising: a selective membrane layer for ion rejection attached to a support layer, the support layer comprising a multi-zone microfiltration membrane comprising: a porous support material; and at least two microfiltration zones, where a first zone comprises a first membrane and a second zone that is attached to the first zone and that coats at least a portion of the porous support material. Thin film composite membrane structures may be provided in reverse osmosis systems or nanofiltration systems. Also, thin film composite membrane structures may be provided in direct osmotic concentration systems, forward osmosis systems, or pressure retarded osmosis systems.
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公开(公告)号：US20220226783A1
公开(公告)日：2022-07-21
申请号：US17610020
申请日：2020-05-11
发明人： Ayse Asatekin Alexiou , Samuel John Lounder , Jeffrey R. McCutcheon , Xin Qian , Tulasi Ravindran
IPC分类号： B01D67/00 , B33Y10/00 , B33Y70/00 , B33Y40/20 , B29C64/112 , B29C71/02 , B01D71/76 , B01D69/02 , B01D69/12 , B01D61/14 , C08F218/00 , C09D133/16
摘要： Disclosed are methods for preparing a thin film composite membrane by subjecting a solution comprising one or more zwitterionic copolymers to an electrospraying process, thereby preparing the thin film composite membrane.
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公开(公告)号：US11090615B2
公开(公告)日：2021-08-17
申请号：US16048240
申请日：2018-07-28
摘要： A method of making a polymer membrane, the method including providing a first monomer solution having a first solvent, a second monomer solution having a second solvent, and a substrate having a surface, and including electrospraying the first monomer solution onto the substrate surface and electrospraying the second monomer solution onto the substrate surface to form the polymer membrane on at least a portion of the substrate surface.
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公开(公告)号：US20240350982A1
公开(公告)日：2024-10-24
申请号：US18701137
申请日：2022-10-14
IPC分类号： B01D69/14 , B01D53/22 , B01D69/02 , B01D69/10 , B01D69/12 , B01D71/02 , B01D71/52 , B01D71/56 , B01D71/80 , B33Y80/00
CPC分类号： B01D69/14111 , B01D53/228 , B01D69/02 , B01D69/107 , B01D69/1216 , B01D71/028 , B01D71/52 , B01D71/56 , B01D71/80 , B33Y80/00 , B01D2256/10 , B01D2256/22 , B01D2325/04 , B01D2325/20
摘要： A thin-film composite membrane may comprise a mixed-matrix membrane supported by a substrate, the mixed-matrix membrane comprising two or more sublayers. At least one of the sublayers may comprise 10 by weight (wt %) to 75 wt % filler particles and 25 wt % to 90 wt % polymer. A method of making a thin-film composite membrane may include performing an electrospraying cycle, comprising electrospraying a first solution onto a surface of a substrate, the solution comprising a first solvent and filler particles, the substrate being positioned on a support surface; electrospraying a second solution onto the surface of the substrate, the second solution comprising a second solvent and a polymer; and after electrospraying a predetermined number of cycles, removing the substrate from the support surface.
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公开(公告)号：US20190030493A1
公开(公告)日：2019-01-31
申请号：US16048240
申请日：2018-07-28
摘要： A method of making a polymer membrane, the method including providing a first monomer solution having a first solvent, a second monomer solution having a second solvent, and a substrate having a surface, and including electrospraying the first monomer solution onto the substrate surface and electrospraying the second monomer solution onto the substrate surface to form the polymer membrane on at least a portion of the substrate surface.
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公开(公告)号：US20150060364A1
公开(公告)日：2015-03-05
申请号：US14389799
申请日：2013-03-15
CPC分类号： B01D71/56 , B01D67/0006 , B01D69/12 , B01D69/125 , B01D71/82 , B01D2323/40 , B01D2323/42 , B01D2325/02 , B01D2325/04 , C02F1/441 , C02F1/442
摘要： Provided are thin film composite membrane structures comprising: a selective membrane layer for ion rejection attached to a support layer, the support layer comprising a multi-zone microfiltration membrane comprising: a porous support material; and at least two microfiltration zones, where a first zone comprises a first membrane and a second zone that is attached to the first zone and that coats at least a portion of the porous support material. Thin film composite membrane structures may be provided in reverse osmosis systems or nanofiltration systems. Also, thin film composite membrane structures may be provided in direct osmotic concentration systems, forward osmosis systems, or pressure retarded osmosis systems.
摘要翻译： 提供的薄膜复合膜结构包括：附着在支撑层上的用于离子排斥的选择膜层，所述支撑层包括多区微滤膜，所述多区微滤膜包括：多孔载体材料; 和至少两个微滤区，其中第一区包括第一膜和连接到第一区的第二区，并涂覆至少一部分多孔载体材料。 可以在反渗透系统或纳滤系统中提供薄膜复合膜结构。 此外，可以在直接渗透浓缩系统，正向渗透系统或压力延迟渗透系统中提供薄膜复合膜结构。
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