Oxidation heat treatment oven and method for manufacturing oxidized fiber bundle and carbon fiber bundle

    公开(公告)号:US12031244B2

    公开(公告)日:2024-07-09

    申请号:US17438127

    申请日:2020-01-29

    IPC分类号: D01F9/32 D01F9/21

    CPC分类号: D01F9/328 D01F9/21 D01F9/32

    摘要: There is provided an oxidation heat treatment oven including a heat treatment chamber configured to heat-treat a fiber bundle that is an aligned acrylic fiber bundle in an oxidizing atmosphere to form an oxidized fiber bundle; a slit-shaped opening configured to take the fiber bundle in and out of the heat treatment chamber; guide rollers installed at both ends of the heat treatment chamber and configured to turn the fiber bundle back; a hot air supply nozzle that has a longitudinal axis along the width of the fiber bundle traveling and that blows out hot air, in a direction substantially parallel to a traveling direction of the fiber bundle, above and/or below the fiber bundle traveling in the heat treatment chamber; and a suction nozzle configured to suck the hot air blown out from the hot air supply nozzle, in which the hot air supply nozzle satisfies disclosed conditions (1) to (3).

    PROCESSES FOR PREPARING CARBON FIBERS USING GASEOUS SULFUR TRIOXIDE
    7.
    发明申请
    PROCESSES FOR PREPARING CARBON FIBERS USING GASEOUS SULFUR TRIOXIDE 有权
    使用三硫化钼制备碳纤维的方法

    公开(公告)号:US20150167201A1

    公开(公告)日:2015-06-18

    申请号:US14413457

    申请日:2013-07-03

    IPC分类号: D01F9/21

    CPC分类号: D01F9/21 D01F9/14 D01F9/20

    摘要: Disclosed herein are processes for preparing carbonized polymers, such as carbon fibers, comprising: sulfonating a polymer with a sulfonating agent that comprises SO3 gas to form a sulfonated polymer; treating the sulfonated polymer with a heated solvent, wherein the temperature of said solvent is at least 95° C.; and carbonizing the resulting product by heating it to a temperature of 500-3000° C.

    摘要翻译: 本文公开了制备碳化聚合物如碳纤维的方法,其包括:用包含SO 3气体的磺化剂磺化聚合物以形成磺化聚合物; 用加热的溶剂处理磺化聚合物,其中所述溶剂的温度为至少95℃。 并将所得产物加热至500-3000℃的温度进行碳化。

    CARBON FIBER AND METHOD FOR PRODUCING SAME
    9.
    发明申请
    CARBON FIBER AND METHOD FOR PRODUCING SAME 有权
    碳纤维及其制造方法

    公开(公告)号:US20140315460A1

    公开(公告)日:2014-10-23

    申请号:US14238968

    申请日:2013-11-11

    发明人: Kazuo Muramatsu

    摘要: The present invention relates to a method for producing a carbon fiber that can be suitably used as a transparent conductive material for forming transparent flexible conductive films and the like, more particularly, to a method for producing a carbon fiber having an outermost surface composed of edges of graphenes, and to a carbon fiber produced by the production method. The production method comprises a step of pre-baking a fiber of an organic compound so as to contain remaining hydrogen, and a step of putting the pre-baked fiber of the organic compound in a closed vessel made of a heat resistant material and subjecting the pre-baked fiber together with the vessel to hot isostatic pressing treatment using a compressed gas atmosphere, wherein a maximum ultimate temperature in the hot isostatic pressing treatment is 1000 to 2000° C.

    摘要翻译: 本发明涉及一种碳纤维的制造方法,其可以适合用作形成透明柔性导电膜等的透明导电材料,更具体地说,涉及具有由边缘构成的最外表面的碳纤维的制造方法 的石墨烯,以及通过该制造方法制造的碳纤维。 该制造方法包括将有机化合物的纤维预烘烤以含有剩余的氢的工序,以及将有机化合物的预烘焙纤维置于由耐热材料制成的密闭容器中的工序, 预先烘烤的纤维与容器一起使用压缩气体气氛进行热等静压处理,其中热等静压处理中的最大最终温度为1000-2000℃。

    CONTROLLED CHEMICAL STABILIZATION OF POLYVINYL PRECURSOR FIBER, AND HIGH STRENGTH CARBON FIBER PRODUCED THEREFROM
    10.
    发明申请
    CONTROLLED CHEMICAL STABILIZATION OF POLYVINYL PRECURSOR FIBER, AND HIGH STRENGTH CARBON FIBER PRODUCED THEREFROM 有权
    聚乙烯前驱纤维的控制化学稳定性及其生产的高强度碳纤维

    公开(公告)号:US20140306364A1

    公开(公告)日:2014-10-16

    申请号:US13860188

    申请日:2013-04-10

    申请人: UT-Battelle, LLC

    发明人: Amit K. Naskar

    IPC分类号: D01F9/21

    CPC分类号: D01F9/21 D01F9/12 D01F9/20

    摘要: Method for the preparation of carbon fiber, which comprises: (i) immersing functionalized polyvinyl precursor fiber into a liquid solution having a boiling point of at least 60° C.; (ii) heating the liquid solution to a first temperature of at least 25° C. at which the functionalized precursor fiber engages in an elimination-addition equilibrium while a tension of at least 0.1 MPa is applied to the fiber; (iii) gradually raising the first temperature to a final temperature that is at least 20° C. above the first temperature and up to the boiling point of the liquid solution for sufficient time to convert the functionalized precursor fiber to a pre-carbonized fiber; and (iv) subjecting the pre-carbonized fiber produced according to step (iii) to high temperature carbonization conditions to produce the final carbon fiber. Articles and devices containing the fibers, including woven and non-woven mats or paper forms of the fibers, are also described.

    摘要翻译: 制备碳纤维的方法,其包括:(i)将官能化的聚乙烯前体纤维浸入沸点至少为60℃的液体溶液中; (ii)将所述液体溶液加热至至少25℃的第一温度,在所述第一温度下,所述官能化的前体纤维在消除加成平衡状态下接合,同时对纤维施加至少0.1MPa的张力; (iii)将第一温度逐渐升高至高于第一温度至少20℃并且直到液体溶液沸点的最终温度足够的时间将官能化的前体纤维转化成预碳化纤维; 和(iv)使根据步骤(iii)生产的预碳化纤维经受高温碳化条件以产生最终的碳纤维。 还描述了包含纤维的制品和装置,包括织物和非织造毡或纤维的纸形式。