COMPOSITE MATERIAL EVALUATION METHOD AND PRODUCTION METHOD, AND COMPOSITE MATERIAL

    公开(公告)号:EP3978900A1

    公开(公告)日:2022-04-06

    申请号:EP20814877.5

    申请日:2020-05-25

    申请人: Zeon Corporation

    发明人: TAKAGI, Kazuki

    摘要: Provided is a technique for quantitatively evaluating a disentanglement state of fibrous carbon nanostructures in a composite material by a simple method. A method of evaluating a composite material containing a polymer and fibrous carbon nanostructures includes: a step (A) of heating the composite material in an inert gas atmosphere to remove a polymer component from the composite material and obtain a polymer-removed product; a step (B) of performing thermogravimetric analysis of the polymer-removed product in an oxygen-containing atmosphere to measure change over time of mass of the polymer-removed product; and a step (C) of evaluating a disentanglement state of the fibrous carbon nanostructures in the composite material from a relationship between mass change of the polymer-removed product and elapsed time obtained in the step (B).