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    • 46. 发明申请
    • SHAPE MEMORY POLYMER (SMP) FLOW MEDIA FOR RESIN INFUSION
    • 形状记忆聚合物(SMP)流媒体用于树脂输注
    • US20160158977A1
    • 2016-06-09
    • US14562909
    • 2014-12-08
    • Spirit AeroSystems, Inc.
    • William Tod Ross
    • B29C43/56B29C59/02B29C43/36
    • B29C43/3642B29C35/02B29C37/0067B29C37/0075B29C59/02B29C70/443B29C70/548B29C2043/3605B29C2043/3644B29C2043/3647B29C2043/3655B29K2101/00B29K2995/0096B29L2031/772
    • A system and method of vacuum assisted resin transfer molding (VARTM) using a reconfigurable material, such as shape memory polymer (SMP), for a caul sheet or a forming tool. The reconfigurable material may have a rough or non-smooth, deformed configuration to serve as a flow media during resin transfer, but may be triggered to return to a smooth memory shape at composite cure temperatures at least high enough to place the reconfigurable material into a malleable state. Thus, a surface of the composite material facing the reconfigurable material will have a substantially smooth finish following curing thereof. The rough or non-smooth deformed configuration may be created by embossing or otherwise forming various patterns into the reconfigurable material in the malleable state, and holding this pattern while triggering the reconfigurable material back to a rigid state for use during resin transfer.
    • 使用诸如形状记忆聚合物(SMP)的可重构材料的真空辅助树脂传递模塑(VARTM)的系统和方法,用于胶片或成形工具。 可重构材料可以具有粗糙或非平滑的变形构型,以在树脂转移期间用作流动介质,但是可以被触发以在复合固化温度下恢复到平滑的记忆形状,至少足够高以将可重新配置的材料置于 韧性状态 因此,面对可重构材料的复合材料的表面在其固化之后将具有基本平滑的整理。 粗糙或不平滑的变形构型可以通过在可延展状态下将各种图案压花或以其它方式形成到可重构材料中,并且保持该图案,同时将可重构材料触发回刚性状态以在树脂转移期间使用来产生。