Thermoplastic fiber composites having high volume fiber loading and methods and apparatus for making same

    公开(公告)号:US10160146B2

    公开(公告)日:2018-12-25

    申请号:US13208780

    申请日:2011-08-12

    摘要: A method and apparatus are provided which enable formation of a thermoplastic article having a high volume loading of a long fiber reinforcement. The method includes providing a first thermoplastic composite material having at least about 40 volume percent of at least one reinforcing fiber; providing at least one mold, the mold(s) each comprising at least one first mold section having an inlet and an outlet and defining a first mold cavity and at least one second mold section having an inlet and an outlet and defining a second mold cavity, wherein the outlet of the first mold section is in communication with the inlet of the second mold section; introducing the first thermoplastic composite material into the first mold cavity; applying heat and pressure to the first thermoplastic composite material in the first mold cavity until the first mold section reaches at least a first process temperature; releasing the pressure on the mold; and reapplying pressure to the mold while cooling, wherein at least a portion of the first thermoplastic composite material flows out of the least one outlet of the first mold section and into the second mold cavity, wherein said cooling solidifies the first thermoplastic composite to form a molded article having the shape of the second mold cavity. Articles formed from such methods and apparatus are also disclosed.

    Thermoplastic Fiber Composites Having High Volume Fiber Loading and Methods and Apparatus for Making Same
    2.
    发明申请
    Thermoplastic Fiber Composites Having High Volume Fiber Loading and Methods and Apparatus for Making Same 审中-公开
    具有大体积纤维负载的热塑性纤维复合材料及其制造方法和装置

    公开(公告)号:US20120040170A1

    公开(公告)日:2012-02-16

    申请号:US13208780

    申请日:2011-08-12

    IPC分类号: B32B27/04 B32B9/04

    摘要: A method and apparatus are provided which enable formation of a thermoplastic article having a high volume loading of a long fiber reinforcement. The method includes providing a first thermoplastic composite material having at least about 40 volume percent of at least one reinforcing fiber; providing at least one mold, the mold(s) each comprising at least one first mold section having an inlet and an outlet and defining a first mold cavity and at least one second mold section having an inlet and an outlet and defining a second mold cavity, wherein the outlet of the first mold section is in communication with the inlet of the second mold section; introducing the first thermoplastic composite material into the first mold cavity; applying heat and pressure to the first thermoplastic composite material in the first mold cavity until the first mold section reaches at least a first process temperature; releasing the pressure on the mold; and reapplying pressure to the mold while cooling, wherein at least a portion of the first thermoplastic composite material flows out of the least one outlet of the first mold section and into the second mold cavity, wherein said cooling solidifies the first thermoplastic composite to form a molded article having the shape of the second mold cavity. Articles formed from such methods and apparatus are also disclosed.

    摘要翻译: 提供了一种方法和装置,其能够形成具有高纤维增强体的高体积负荷的热塑性制品。 该方法包括提供具有至少约40体积%的至少一种增强纤维的第一热塑性复合材料; 提供至少一个模具,每个模具包括至少一个具有入口和出口的第一模具部分,并限定第一模腔和至少一个具有入口和出口的第二模具部分,并且限定第二模腔 其中,所述第一模具部分的出口与所述第二模具部分的入口连通; 将第一热塑性复合材料引入第一模腔中; 对第一模腔中的第一热塑性复合材料施加热和压力,直到第一模具部分达到至少第一工艺温度; 释放模具上的压力; 并且在冷却期间将压力重新施加到模具,其中第一热塑性复合材料的至少一部分流出第一模具部分的至少一个出口并进入第二模腔,其中所述冷却固化第一热塑性复合材料以形成 具有第二模腔形状的模制品。 还公开了由这些方法和装置形成的物品。