Preparation method and product of thermoplastic carbon fiber fabric prepreg

    公开(公告)号:US11981784B2

    公开(公告)日:2024-05-14

    申请号:US17675007

    申请日:2022-02-18

    Abstract: A preparation method and a product of thermoplastic carbon fiber fabric prepreg are provided. The preparation method includes: covering a thermoplastic polyimide non-woven fabric on a carbon fiber fabric to obtain a laminated structure, pressing the laminated structure, then spraying polyphenylene sulfide nanoparticles onto the thermoplastic polyimide non-woven fabric, and performing a two-stage hot melting preparation process which includes: in a first stage, heating up to make the polyphenylene sulfide nanoparticles be melted and infiltrate and keeping a hot melting time of 5-10 min; and in a second stage, heating up to make the thermoplastic polyimide non-woven fabric be melted and infiltrate into the carbon fiber fabric and cooling down after a duration of heat preservation to prepare the thermoplastic carbon fiber fabric prepreg. The thermoplastic carbon fiber fabric prepreg prepared by the two-stage hot melting has high strength and may be stored for a long period.

    Fogging nozzle assembly couplable to a typical handheld blower

    公开(公告)号:US11980908B2

    公开(公告)日:2024-05-14

    申请号:US17518509

    申请日:2021-11-03

    CPC classification number: B05B7/0441 B05B7/0081 B05B7/10 B05D1/02

    Abstract: A method and apparatus related to a fogging nozzle assembly including a housing, a metered core, and an air vortex core. The housing includes an air inlet opening at a first end to receive air from a blower distinct from the apparatus, and a fogging outlet opening to output a fog at a second end. The housing couples to a liquid container that stores a fogging liquid and to the blower. The metered core, disposed within the housing, includes a first plurality of radial angled fins to create a low-pressure zone within the housing which draws the fogging liquid from the liquid container into the housing. The air vortex core, disposed between the metered core and the fogging outlet opening, includes a second plurality of radial angled fins to mix the fogging liquid with the air and guide the fog exiting the housing at the fogging outlet opening.

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