AQUEOUS POLYMERIC DISPERSIONS, METHODS OF MAKING THE SAME AND SIZED FIBER TOWS

    公开(公告)号:US20200240075A1

    公开(公告)日:2020-07-30

    申请号:US16635589

    申请日:2018-08-01

    摘要: Various embodiments disclosed relate to an aqueous dispersion. The aqueous dispersion includes a plurality of particles. Each of the particles includes a polycarbonate component. Individual particles of the polycarbonate component have substantially the same size. The dispersion further includes a plasticizer component and a surfactant component. In an embodiment, a sized carbon fiber tow can comprise: a polycarbonate sizing on a carbon fiber tow, wherein the polycarbonate sizing has a concentration of volatile organic compounds less than 10 ppm, preferably less than 5 ppm, or less than 2 ppm; and an average sizing content of at least 0.5 wt % of the carbon fiber tow with a coefficient of variation less than 15%, preferably less than 11%.

    CARBON FIBER TOW WITH IMPROVED PROCESSABILITY

    公开(公告)号:US20200173100A1

    公开(公告)日:2020-06-04

    申请号:US16624025

    申请日:2018-08-01

    发明人: Reema Sinha

    IPC分类号: D06M15/53 D06M10/10 C08J5/06

    摘要: In one embodiment, a sized carbon fiber tow can comprise: an unsized carbon fiber tow sized with a sizing agent; wherein the sized carbon fiber tow has: a) a fuzz count of less than 8 counts/20 meters; b) a sizing content of at least 0.4 wt % of the unsized carbon fiber tow; and c) drapability less than 5.5 cm. A method of preparing a sized carbon fiber tow, comprising: spreading an unsized carbon fiber tow having a surface energy of at least 70 mJ/m2, over a spreader unit at a throughput line speed of at least 3 meter/minute and forming spread carbon fibers; sizing the spread carbon fibers in a sizing bath at a throughput line speed of at least 3 meter/minute and forming sized carbon fibers; and drying the sized carbon fibers and forming the sized carbon fiber tow.