GRAPHENE-REINFORCED POLYMER MATRIX COMPOSITES
    2.
    发明公开
    GRAPHENE-REINFORCED POLYMER MATRIX COMPOSITES 审中-公开
    石墨增强聚合物基复合材料

    公开(公告)号:EP3174827A1

    公开(公告)日:2017-06-07

    申请号:EP15826460.6

    申请日:2015-07-29

    IPC分类号: C01B32/182

    摘要: A graphene-reinforced polymer matrix composite comprising an essentially uniform distribution in a thermoplastic polymer of about 10% to about 50% of total composite weight of particles selected from graphite microp articles, single-layer graphene nanoparticles, multilayer graphene nanoparticles, and combinations thereof, where at least 50 wt % of the particles consist of single- and/or multi-layer graphene nanoparticles less than 50 nanometers thick along a c-axis direction. The graphene-reinforced polymer matrix is prepared by a method comprising (a) distributing graphite microparticles into a molten thermoplastic polymer phase comprising one or more matrix polymers; and (b) applying a succession of shear strain events to the molten polymer phase so that the matrix polymers exfoliate the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along a c-axis direction.

    摘要翻译: 一种石墨烯增强的聚合物基质复合材料,其包含在热塑性聚合物中基本均匀分布的选自石墨微粒制品,单层石墨烯纳米粒子,多层石墨烯纳米粒子及其组合的颗粒的总复合重量的约10%至约50% 其中至少50重量%的颗粒由沿着c轴方向小于50纳米厚的单层和/或多层石墨烯纳米颗粒组成。 该石墨烯增强的聚合物基体通过包括以下的方法制备:(a)将石墨微粒分布到包含一种或多种基体聚合物的熔融热塑性聚合物相中; 和(b)向熔融聚合物相施加一系列剪切应变事件,使得基体聚合物在每次事件中连续地剥离石墨,直到石墨的至少50%被剥离以在熔融聚合物相的单层中形成分布, 以及沿c轴方向小于50纳米厚的多层石墨烯纳米颗粒。