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138 条记录 (耗时 0.022 秒)

    Electrochemical grafting of carbon fibers with aliphatic amines for improved composite strength
    5.
    发明授权
    Electrochemical grafting of carbon fibers with aliphatic amines for improved composite strength 有权

    公开(公告)号：US11225754B2

    公开(公告)日：2022-01-18

    申请号：US16604595

    申请日：2018-04-11

    申请人： Dow Global Technologies LLC

    发明人： Michael A. Lowe ,  Richard Baumer

    IPC分类号： D06M13/328 ,  C08J5/06 ,  D06M10/08 ,  D06M15/643 ,  D06M101/40

    摘要： The surface of a carbon fiber is electrochemically treated by a method to form nitrogen containing groups on the surface of the carbon fiber. The method comprises contacting a carbon fiber surface with an aqueous solution comprised of a non-cyclic aliphatic amine and water soluble inorganic hydroxide with said aqueous solution having a pH of at least 9. A positive electrical bias is then applied to the carbon fibers in the aqueous solution relative to another electrode in contact with the aqueous solution, wherein the positive electrical bias is at a voltage above the oxidation potential of water. The treated carbon fibers are useful for making epoxy reinforced carbon fiber composites.

    GREEN TECHNOLOGY FOR CROSSLINKING PROTEIN MOLECULES FOR VARIOUS USES
    7.
    发明申请
    GREEN TECHNOLOGY FOR CROSSLINKING PROTEIN MOLECULES FOR VARIOUS USES 有权

    公开(公告)号：US20210289906A1

    公开(公告)日：2021-09-23

    申请号：US17334673

    申请日：2021-05-28

    申请人： CORNELL UNIVERSITY

    发明人： Anil N. NETRAVALI ,  Yidong ZHONG

    IPC分类号： A45D7/06 ,  C08H1/02 ,  A45D2/00 ,  C08H1/06 ,  D06M10/08 ,  D06M13/165

    摘要： The present disclosure relates to, inter alia, a green technology for crosslinking protein molecules for various uses, where the protein molecules can be contained in protein fibers such as, but not limited to, human hair, animal fibers, and mixtures thereof. In one aspect, the present disclosure relates to a crosslinking agent comprising an oxidized sugar having at least two aldehyde groups. In another aspect, the present disclosure relates to a method of crosslinking protein fibers. This method involves providing the aforementioned crosslinking agent and infiltrating a plurality of non-crosslinked protein fibers with the crosslinking agent under conditions effective to cause protein molecules contained in the non-crosslinked protein fibers to become crosslinked, thereby yielding a population of crosslinked protein fibers.

    Electret and electret filter
    9.
    发明授权
    Electret and electret filter 有权

    公开(公告)号：US10940415B2

    公开(公告)日：2021-03-09

    申请号：US15764546

    申请日：2016-09-21

    申请人： TOYOBO CO., LTD.

    发明人： Yoshiyuki Kitagawa

    IPC分类号： B01D39/16 ,  B03C3/28 ,  B03C3/45 ,  B03C3/64 ,  D06M13/08 ,  D06M15/277 ,  D06M15/256 ,  D06M10/02 ,  D06M10/08 ,  D06N3/00 ,  D06N3/04

    摘要： An electret is disclosed including: a carrier, and polytetrafluoroethylene having a melting point of 35° C. or higher and 320° C. or lower deposited on the carrier, wherein the electret imparts an electrostatic charge to at least one of the carrier and the polytetrafluoroethylene, and has two or more melting point peaks in simultaneous thermogravimetry and differential thermal analysis. An electret filter is disclosed which preferably is used for a filter which requires durability to tobacco smoke. An electret filter is also disclosed having a fluorine-containing component deposited on a fiber surface, wherein an initial QF value is 0.5 mmAq−1 or more in collection efficiency of particles having a particle diameter of 0.3 to 0.5 μm at a wind speed of 5 cm/s, and a filter deterioration rate by tobacco smoke loading is −8/(g/m2) or more.