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    • 8. 发明申请
    • COMPOSITE MATERIAL
    • 复合材料
    • WO2017046577A1
    • 2017-03-23
    • PCT/GB2016/052821
    • 2016-09-13
    • INTEGRATED MATERIALS TECHNOLOGY LTD
    • FORD, Roger
    • B29C70/54B29C70/14B29C70/20B29B11/02B29B11/16
    • B29C70/545B29C70/14B29C70/205
    • A method for preparing a composite material layer (400, 500, 600), said composite material layer (400, 500, 600, 700, 800) comprising discrete fibre domains (402, 502, 602, 702) comprising discontinuous fibres, wherein a said discontinuous fibre does not extend beyond a said fibre domain, the method comprising: providing a continuous pre-preg layer comprising reinforcing fibres dispersed in a matrix, wherein said reinforcing fibres are generally aligned in a fibre alignment direction; making a plurality of first disconnected cuts through an entire thickness of said pre-preg layer, wherein said first disconnected cuts are separated in said fibre alignment direction, and wherein said first disconnected cuts have a component perpendicular to said fibre alignment direction; and making one or more of second disconnected cuts through an entire thickness of said pre-preg layer, wherein a said second disconnected cut is made along a line which is generally parallel to said fibre alignment direction, and wherein a said line connects corresponding, respective end points of said first disconnected cuts.
    • 一种制备复合材料层(400,500,600)的方法,所述复合材料层(400,500,600,700,800)包括包含不连续纤维的离散纤维畴(402,502,602,702),其中a 所述不连续纤维不延伸超过所述纤维结构域,所述方法包括:提供包含分散在基质中的增强纤维的连续预浸层,其中所述增强纤维通常沿纤维排列方向排列; 在所述预浸层的整个厚度上形成多个第一断开的切口,其中所述第一断开切口在所述纤维排列方向上分离,并且其中所述第一断开切口具有垂直于所述纤维排列方向的分量; 并且通过所述预浸料层的整个厚度制造一个或多个第二断开的切口,其中所述第二断开切口沿着大致平行于所述纤维排列方向的线制成,并且其中所述线连接相应的相应的 所述第一次断开切断的终点。