CARBON FIBER PRE-PREGS AND METHODS FOR MANUFACTURING THEREOF

    公开(公告)号:US20180016740A1

    公开(公告)日:2018-01-18

    申请号:US15211814

    申请日:2016-07-15

    摘要: Methods and components produced from carbon fiber pre-impregnated composite precursor materials (pre-preg) having enhanced flowability and moldability are provided. Discontinuous cut regions are introduced into a pre-preg. A sheet of pre-preg may be contacted with a patterned surface having a plurality of non-contiguous staggered cutters, so that the contacting creates discontinuous cuts in the pre-preg. A plurality of staggered discontinuous cut regions are formed in the plurality of continuous carbon fibers that define a first plurality of carbon fibers having a first length and a second plurality of carbon fibers having a second distinct length. The patterned surface may be provided on a cutter device that is a roller or a plate having the non-contiguous staggered cutters formed or disposed thereon. The discontinuous cut regions that are formed in the pre-preg reduce stiffness and improve moldability/flowability when forming carbon fiber polymeric composites, while retaining high strength levels.

    CARBON NANOTUBE FIBER AND METHOD FOR PRODUCING THE SAME
    20.
    发明申请
    CARBON NANOTUBE FIBER AND METHOD FOR PRODUCING THE SAME 审中-公开
    碳纳米纤维及其制造方法

    公开(公告)号:US20170044689A1

    公开(公告)日:2017-02-16

    申请号:US15304192

    申请日:2014-08-04

    IPC分类号: D01D5/00 D01F9/21 D01D10/02

    摘要: The present invention relates to carbon nanotube fiber and a producing method thereof. The carbon nanotube fiber has a tensile strength which exceeds 5 GPa, and the producing method includes: producing a carbon nanotube fiber precursor consisting of carbon nanotubes; evenly dispersing a cross-linking agent on the carbon nanotube fiber precursor; and acquiring carbon nanotube fiber by thermally treating the carbon nanotube fiber precursor wherein the cross-linking agent is evenly dispersed, wherein the acquired carbon nanotube fiber has cross-linking between wall surfaces of the carbon nanotubes each other.

    摘要翻译: 碳纳米管纤维及其制造方法技术领域本发明涉及碳纳米管纤维及其制造方法。 碳纳米管纤维的拉伸强度超过5GPa,制造方法包括:制造由碳纳米管构成的碳纳米管纤维前体; 均匀分散在碳纳米管纤维前体上的交联剂; 并且通过热处理所述交联剂均匀分散的碳纳米管纤维前体获得碳纳米管纤维,其中所述获得的碳纳米管纤维在所述碳纳米管的壁表面之间具有交联。