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公开(公告)号：US11806674B1
公开(公告)日：2023-11-07
申请号：US18124024
申请日：2023-03-21
Applicant: Harbin Engineering University
Inventor： Jun Wang , Jiaqi Yu , Qi Liu , Hongsen Zhang , Jingyuan Liu , Rongrong Chen , Jing Yu , Jiahui Zhu , Rumin Li , Peili Liu
CPC classification number: B01D67/0079 , B01D69/02 , B01D71/42 , B01D2323/02 , B01D2325/36 , C22B60/0265
Abstract: A high flux antibacterial polyacrylonitrile-based uranium-extraction-from-seawater-seawater desalination cogeneration membrane and a preparation method thereof are disclosed. To satisfy demand of uranium-extraction-from-seawater-seawater desalination cogeneration application, polyacrylonitrile, chitosan and amidoxime modified polyacrylonitrile are taken as raw materials and a proportion of raw materials of a casting membrane are optimized in a membrane forming process. The conversion rate of polyacrylonitrile is adjusted so that formation of an amidoxime modified polyacrylonitrile powder in a casting membrane liquid mixing system is regulated and controlled, thereby significantly improving the mechanical properties, the flux, the hydrophilicity, the antibacterial property and the uranium adsorptive property. A compound cogeneration membrane composed of a top membrane, a clipping membrane and a bottom membrane are also prepared according to actual function characteristics of seawater and the membrane material, and the uranium-extraction-from-seawater-seawater desalination performance of the membrane material is integrally improved.
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公开(公告)号：US12227671B2
公开(公告)日：2025-02-18
申请号：US17951125
申请日：2022-09-23
Applicant: Harbin Engineering University
Inventor： Jun Wang , Jiawei Tang , Rongrong Chen , Qi Liu , Jingyuan Liu , Jing Yu , Jiahui Zhu , Gaohui Sun , Peili Liu
IPC: C09D175/04 , C09D5/16
Abstract: A polypyrrole-graphene/polyurethane antifouling coating as well as a preparation method and an application thereof are provided. The polypyrrole-graphene/polyurethane antifouling coating includes component A and component B, wherein the component A mainly includes the following raw materials in parts by weight: 500 parts of group-hydrolyzable polyurethane prepolymer, 25-50 parts of bentonite, 25-50 parts of titanium dioxide, 60-120 parts of zinc oxide, 15-30 parts of talcum powder, and 15-30 parts of polypyrrole-graphene nanofiller; and the component B mainly includes the following raw materials in parts by weight: 5-7 parts of leveling agent, 5-7 parts of defoamer, 6-15 parts of chain extender, 10-25 parts of silane coupling agent, and 1-2 parts of catalyst. The two-component polyurethane coating of the present invention has relatively good adhesion, collision resistance and cracking resistance, and the antifouling property and the antifouling durability can be improved.
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Patent Agency Ranking
3.发明公开公开(公告)号：US20230381719A1
公开(公告)日：2023-11-30
申请号：US18195735
申请日：2023-05-10
Applicant: Harbin Engineering University
Inventor： Jun Wang , Bingtao Zhang , Hongsen Zhang , Qi Liu , Jiahui Zhu , Jingyuan Liu , Jing Yu , Rongrong Chen , Lele Wang
CPC classification number: B01D69/145 , B01D71/421 , B01D69/14111 , B01D69/105 , B01D69/108 , B01D69/02 , B01D67/00793 , B01D67/00113 , B01D67/0013 , B01D67/0016 , B01D61/025
Abstract: The present disclosure relates to the field of materials for uranium extraction from seawater (UES), and in particular, to a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The present disclosure provides a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The preparation method includes: fixing a treated carbon cloth to a glass plate, pouring a casting solution 1 onto the carbon cloth to form a first layer of film, forming a second layer of film using a casting solution 2, and putting the second layer of film into a first coagulation bath and a second coagulation bath in sequence to form the photothermal photocatalytic membrane. The photothermal photocatalytic membrane is supported by the carbon cloth, and a surface of the photothermal photocatalytic membrane is of a micro-nano structure.
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公开(公告)号：US11925906B1
公开(公告)日：2024-03-12
申请号：US18380211
申请日：2023-10-16
Applicant: Harbin Engineering University
Inventor： Jun Wang , Bingtao Zhang , Hongsen Zhang , Qi Liu , Jing Yu , Jiahui Zhu , Jingyuan Liu , Rongrong Chen
CPC classification number: B01D69/105 , B01D69/108 , B08B3/08 , D02J3/02 , D02J3/14 , D06B3/105 , D06B3/345 , B01D2323/081 , B01D2323/12 , B01D2323/42 , B01D2325/54
Abstract: A preparation method and a device for a seawater desalination-seawater extraction uranium membrane lining are provided. The preparation method is as follow: the lining is configured as a finished product for standby through the following process, including cleaning, drying, restoration of circular, generating burrs, fixing the length of burrs; the device includes the first module, the second module, the third module, the fourth module and the fifth module. The present invention has the advantages of simple operation, short time, low cost and obvious treatment effect, the bonding strength between the separation function layer and the lining is enhanced, and the separation function layer is not easy to fall off, the physical damage resistance is greatly increased, it is not easy to fall off and the initial bubble point pressure of the prepared enhanced film is high.
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公开(公告)号：US11879039B1
公开(公告)日：2024-01-23
申请号：US18233907
申请日：2023-08-15
Applicant: Harbin Engineering University
Inventor： Gaohui Sun , Kangkang Tao , Shihui Han , Rongrong Chen , Jun Wang
CPC classification number: C08J5/18 , C08G73/1007 , C08G73/1035 , C08G73/1067 , C08J3/005 , C08J3/247 , C08J2379/08
Abstract: A preparation method for thermoplastic multi-hybrid polyimide films is provided. The method includes the following steps: S1, adding an aromatic diisocyanate to an aromatic dianhydride solution system to obtain an anhydride-terminated polyimide precursor solution containing a seven-membered ring structure named a first solution; S2, adding an aromatic dianhydride to an aromatic diamine solution system to obtain an amino-terminated polyamic acid solution named a second solution; S3, mixing the first solution and the second solution to obtain a uniform multi-polymerization solution; S4, after extending the multi-polymerization solution to form a film, carrying out a gradient heating curing in a vacuum oven and an ordinary oven respectively to obtain a thermoplastic multi-hybrid polyimide film after cooling. The invention prepares a thermoplastic multi-hybrid polyimide film with better comprehensive performance rapidly, the preparation process is simple, and the production cost is effectively reduced.
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公开(公告)号：US11951445B2
公开(公告)日：2024-04-09
申请号：US18195735
申请日：2023-05-10
Applicant: Harbin Engineering University
Inventor： Jun Wang , Bingtao Zhang , Hongsen Zhang , Qi Liu , Jiahui Zhu , Jingyuan Liu , Jing Yu , Rongrong Chen , Lele Wang
IPC: B01D69/14 , B01D61/02 , B01D67/00 , B01D69/02 , B01D69/10 , B01D71/42 , C02F1/30 , C02F1/44 , C02F1/70 , C02F101/20 , C02F103/08
CPC classification number: B01D69/145 , B01D67/00113 , B01D67/0013 , B01D67/0016 , B01D67/00793 , B01D69/02 , B01D69/105 , B01D69/108 , B01D69/14111 , B01D71/421 , B01D61/025 , B01D2323/081 , B01D2323/12 , B01D2323/21 , B01D2323/21813 , B01D2323/21817 , B01D2323/2185 , B01D2323/2187 , B01D2323/22 , B01D2323/56 , B01D2325/025 , B01D2325/34 , C02F1/30 , C02F1/441 , C02F1/70 , C02F2101/20 , C02F2103/08
Abstract: The present disclosure relates to the field of materials for uranium extraction from seawater (UES), and in particular, to a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The present disclosure provides a photothermal photocatalytic membrane for seawater desalination and uranium extraction and a preparation method therefor. The preparation method includes: fixing a treated carbon cloth to a glass plate, pouring a casting solution 1 onto the carbon cloth to form a first layer of film, forming a second layer of film using a casting solution 2, and putting the second layer of film into a first coagulation bath and a second coagulation bath in sequence to form the photothermal photocatalytic membrane. The photothermal photocatalytic membrane is supported by the carbon cloth, and a surface of the photothermal photocatalytic membrane is of a micro-nano structure.
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公开(公告)号：US11795330B1
公开(公告)日：2023-10-24
申请号：US18127678
申请日：2023-03-29
Applicant: Harbin Engineering University
Inventor： Qi Liu , Yue Sun , Peili Liu , Rongrong Chen , Jun Wang , Gaohui Sun
IPC: C09D5/08 , C09D175/04
CPC classification number: C09D5/084 , C09D175/04
Abstract: A polypyrrole-coated graphene corrosion inhibitor container and its preparation method and a composite coating and its application are provided. The polypyrrole encapsulated graphene corrosion inhibitor container includes graphene oxide and a polyvinylo layer encapsulated on the surface of the graphene oxide. The invention is based on a polymerization reaction by mixing a polypyrrole acid solution, a graphene oxide dispersion, and an initiator to obtain a polypyrrole encapsulated graphene corrosion inhibitor container. The polypyrrole encapsulated graphene corrosion inhibitor container regulates the release rate of the corrosion inhibitor by wrapping the polypyrrole around the graphene oxide so that it is released rapidly in alkaline solutions and at a slower rate in neutral media. The results of the practical example show that the polypyrrole encapsulated graphene corrosion inhibitor container can regulate the release rate of the corrosion inhibitor and has excellent corrosion protection properties and corrosion protection durability.
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