公开(公告)号：US20240207793A1

公开(公告)日：2024-06-27

申请号：US18512011

申请日：2023-11-16

申请人： Research Institute of Chemical Defense , PLA Academy of Military Sciences

发明人： Zhanguo Li ,  Jun Li ,  Yi Wang ,  Yong Pan ,  Jian LI

IPC分类号： B01D69/12 ,  B01D69/14 ,  B01D71/02 ,  B01D71/56 ,  C01B32/907 ,  C08G69/04 ,  C08G69/32 ,  C08K3/14

CPC分类号： B01D69/1251 ,  B01D69/14111 ,  B01D71/02 ,  B01D71/56 ,  C01B32/907 ,  C08G69/04 ,  C08G69/32 ,  C08K3/14 ,  B01D61/025 ,  B01D2323/081 ,  B01D2323/082 ,  B01D2323/12 ,  C01P2004/64 ,  C08K2201/011

摘要： The present disclosure belongs to the technical field of membrane separation, and discloses a preparation method of a Ti3C2Tx MXene quantum dot (MQD)-modified polyamide (PA) reverse osmosis (RO) membrane. The preparation method includes the following steps: subjecting a Ti3C2Tx MXene material to liquid nitrogen intercalation and interlayer expansion to obtain a Ti3C2Tx MQD nanomaterial; preparing an aqueous phase solution with the Ti3C2Tx MQD nanomaterial and an organic phase solution; soaking an ultrafiltration (UF) base membrane in the aqueous phase solution , and removing the aqueous phase solution on a surface of the UF base membrane through blow-drying; soaking the second UF base membrane in the organic phase solution to allow interfacial polymerization to form an active layer; and allowing a composite membrane obtained after the interfacial polymerization to stand, followed by a heat treatment to further promote the interfacial polymerization.

公开(公告)号：US20230347295A1

公开(公告)日：2023-11-02

申请号：US17637169

申请日：2021-11-18

申请人： ARUN CO., LTD.

发明人： Soon Bong OH ,  Jun Won OH

IPC分类号： B01D67/00 ,  B01D69/14 ,  B01D71/34 ,  B01D71/02 ,  B01D69/10 ,  B01D69/02 ,  B01D69/12

CPC分类号： B01D67/00793 ,  B01D69/148 ,  B01D71/34 ,  B01D71/0211 ,  B01D71/0212 ,  B01D71/024 ,  B01D69/10 ,  B01D69/02 ,  B01D69/1213 ,  B01D2325/02834 ,  B01D2325/24 ,  B01D2325/20 ,  B01D2323/081 ,  B01D2323/082 ,  B01D2323/18 ,  B01D2323/2185 ,  B01D2323/2187 ,  B01D2323/21819 ,  B01D2323/56

摘要： A method of manufacturing a PVDF composite separation membrane according to an embodiment of the present disclosure has advantages in that it is possible to control the size of pores in various ways based on the nonsolvent-induced phase transition process and calcination process, and manufacture a porous high-strength PVDF composite separation membrane having high water permeability, and it is possible to manufacture a PVDF composite separation membrane which may exhibit durability that does not damage the membrane even under high pressure, while having heat resistance applicable even at a high temperature of 150° C., and excellent chemical resistance to acids and alkalis, and suppress heavy metal adsorption and biofouling phenomenon, and may allow an organic material to be decomposed by ultrasonic waves or UV photocatalysts. In addition, the PVDF composite separation membrane has excellent mechanical, thermal and chemical resistance properties, suppresses the biofouling phenomenon, and exhibits high ultrasonic reactivity.

公开(公告)号：US20230330602A1

公开(公告)日：2023-10-19

申请号：US18042671

申请日：2021-06-28

申请人： IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)

发明人： Ho Bum PARK ,  Tae Hoon LEE ,  Si Hyun DO

IPC分类号： B01D67/00 ,  B01D69/12 ,  B01D69/10 ,  B01D71/56 ,  B01D53/22 ,  C02F1/44

CPC分类号： B01D67/0002 ,  B01D69/12 ,  B01D69/107 ,  B01D71/56 ,  B01D53/228 ,  C02F1/44 ,  B01D2323/082

摘要： The present disclosure relates to an ultra-thin polymer separation membrane including: a porous polymer support layer; a gutter layer formed on the porous polymer support layer; and a semi-crystalline polymer selection layer formed on the gutter layer, wherein the semi-crystalline polymer selection layer is coated with a nanometer-level thickness in a state in which the temperature of a semi-crystalline polymer solution is 0° C. to −50° C. Therefore, the crystallinity and orientation of the ultra-thin polymer separation membrane, essentially required for the scale-up of a separation membrane process and the actual application in the industry, can be controlled easily using a low-temperature coating method, in which the temperature of the polymer solution is lowered, during the coating of the selection layer. Furthermore, separation performance can be enhanced remarkably by using only polymers as raw materials, without additional additives that have been used in the manufacturing of conventional ultra-thin polymer separation membranes.

公开(公告)号：US20230302411A1

公开(公告)日：2023-09-28

申请号：US18021074

申请日：2021-08-13

申请人： HANGZHOU COBETTER TECHNOLOGY CO., LTD.

发明人： Jiandong JIA ,  Mengze CHEN ,  Jiadai YU

IPC分类号： B01D69/08 ,  B01D69/02 ,  B01D71/26 ,  B01D53/22 ,  A61M1/16 ,  B01D67/00

CPC分类号： B01D69/082 ,  B01D69/02 ,  B01D71/26 ,  B01D53/228 ,  A61M1/16 ,  B01D67/0011 ,  B01D67/0083 ,  B01D2325/022 ,  B01D2325/38 ,  A61M2202/0241 ,  B01D2325/02833 ,  B01D2325/02834 ,  B01D2325/24 ,  B01D2325/04 ,  B01D2325/20 ,  B01D2323/082 ,  B01D2323/22 ,  B01D2323/18 ,  B01D2323/12 ,  B01D2323/081 ,  B01D2323/14

摘要： An asymmetric hydrophobic polyolefin hollow fiber membrane includes a support layer and a separation layer, the separation layer including an outer surface, the outer surface including a quantity of first pores with a certain pore size; presence of the first pores facilitates an anesthetic gas such as sevoflurane and remifentanil to permeate through the hollow fiber membrane into the human blood, allowing for the patient to maintain sedated throughout a surgical process; meanwhile, the first pores facilitate reduction of dosage of the anesthetic in the surgery, thereby reducing surgical costs and avoid overdosage of the anesthetic causing secondary impairment to the patient; in addition, the hollow fiber membrane offers a long plasma permeation duration, a high tensile strength and a high elongation at break to satisfy application needs, particularly suitable for human blood oxygenation including anesthetic gas and the gas-liquid separation areas.