公开(公告)号：US20240165566A1

公开(公告)日：2024-05-23

申请号：US18549064

申请日：2021-10-28

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION

发明人： Yiqun LIU ,  Yu LI ,  Changjiang WU ,  Guoyuan PAN ,  Yang ZHANG ,  Hao YU ,  Muhua ZHAO

IPC分类号： B01D69/12 ,  B01D61/00 ,  B01D61/02 ,  B01D61/14 ,  B01D67/00 ,  B01D69/02 ,  B01D71/56 ,  C02F1/44

CPC分类号： B01D69/1251 ,  B01D61/002 ,  B01D61/027 ,  B01D61/145 ,  B01D67/0011 ,  B01D67/0013 ,  B01D67/0016 ,  B01D69/02 ,  B01D71/56 ,  C02F1/442 ,  C02F1/444 ,  C02F1/445 ,  B01D2325/04

摘要： A polymer ultrafiltration membrane with a bicontinuous highly interconnected porous structure, a preparation method and applications thereof are provided. The ultrafiltration membrane has a bottom layer and a polymer layer. The polymer layer is divided into a sublayer and a surface layer. The surface layer is of a uniform small pore structure with a narrow pore size distribution. The sublayer is of a bicontinuous highly interconnected three-dimensional network porous structure. The bicontinuous highly interconnected porous structure of the bicontinuous highly interconnected porous ultrafiltration membrane is characterized as follows: in the thickness direction of the sublayer, the cross-sectional porosity on any XY cross-section perpendicular to the thickness direction is 40-90%, preferably 60-90%, and further preferably 70-90%; and the difference in the cross-sectional porosities between any two XY cross-sections does not exceed 10%, preferably not exceed 8%, and also preferably not exceed 5%.

公开(公告)号：US20220379266A1

公开(公告)日：2022-12-01

申请号：US17755535

申请日：2020-10-27

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHRMICAL CORPORATION

发明人： Yiqun LIU ,  Jing WANG ,  Guoyuan PAN ,  Yang ZHANG ,  Hao YU

IPC分类号： B01D69/02 ,  B01D69/14 ,  B01D67/00 ,  B01D71/42 ,  B01D71/02 ,  B01D71/16 ,  B01D71/34 ,  B01D71/28 ,  B01D71/68 ,  B01D61/14 ,  C02F1/44

摘要： A polymer film has a loofah-like structure. It has a fibrous framework structure formed by three-dimensional interwoven and interconnected polymer fibers and a three-dimensional interconnected network pore structure distributed in the fibrous framework structure. The polymer is an organic polymer and the fibrous framework structure is integrally formed by the polymer. The film has a volume porosity of from 50% to 95%. The film is obtained by means of a combination method for atomization pretreatment and non-solvent phase separation. The film can be used in the fields of gas filtration, liquid filtration, oil-water separation, adsorption materials, catalysis, pharmaceutical sustained release materials, anti-adhesion coatings, oil delivery and oil spill interception.