Thermoplastic composite material made from natural fibers
    4.
    发明授权
    Thermoplastic composite material made from natural fibers 有权
    由天然纤维制成的热塑复合材料

    公开(公告)号:US09139707B2

    公开(公告)日:2015-09-22

    申请号:US14404718

    申请日:2013-05-30

    申请人: ARKEMA FRANCE

    摘要: A method of producing a composite material, comprising an assembly of natural fibers, impregnated with an amorphous or semi-crystalline thermoplastic polymer, said method including: i) a step of impregnating said assembly with a precursor composition in the molten state and including: a) at least one prepolymer P(X)n of said thermoplastic polymer, having a molecular chain P having, at the ends of same, n reactive functions X, with n ranging from 1 to 3, in particular n being 1 or 2, and preferably 2 b) at least one chain extender Y-A-Y including reactive functions Y with at least one of said functions X ii) a step of polymerization by mass (poly)addition, in the molten state, of said prepolymer with said chain extender with: said thermoplastic polymer being the result of said polymerization by mass polyaddition and said impregnation i) and polymerization ii) taking place at a temperature lower than 250° C.

    摘要翻译: 一种生产复合材料的方法,包括用无定形或半结晶热塑性聚合物浸渍的天然纤维的组合物,所述方法包括:i)用熔融状态的前体组合物浸渍所述组合物的步骤,包括: )所述热塑性聚合物的至少一种预聚物P(X)n,其分子链P在相同末端具有n个反应性官能团X,n为1至3,特别是n为1或2,以及 优选为b)至少一种包含具有至少一种所述功能的反应性官能团Y的扩链剂YII ii)在所述预聚物与所述扩链剂的质量(聚)加成反应中聚合的步骤为:所述 热塑性聚合物是通过质量加聚所述聚合的结果,所述浸渍i)和聚合ii)在低于250℃的温度下进行。

    SCREW SEGMENT
    8.
    发明申请
    SCREW SEGMENT 有权
    螺丝部分

    公开(公告)号:US20120125738A1

    公开(公告)日:2012-05-24

    申请号:US13384503

    申请日:2009-08-18

    IPC分类号: B65G33/24

    摘要: There are provided screw segments 100, 200 that are capable of shearing and kneading feedstock without causing plugs within a cylinder 1 of a screw extruder, and of extruding it from the cylinder 1. The screw segments 100, 200 each comprise a shaft part 111 to be affixed to a screw shaft 7, and a tooth part 112 that protrudes radially outward from the shaft part 111. The tooth part 112 comprises a tooth surface 116 that is formed on the front side relative to the rotation direction of the screw shaft 7, and that is so sloped as to transition gradually forward relative to the rotation direction as it transitions radially outward from the shaft part 111.

    摘要翻译: 提供了能够剪切和捏合原料而不会在螺杆挤出机的圆柱体1内产生塞子并将其从圆筒1挤出的螺杆段100,200。螺杆段100,200分别包括轴部分111至 固定到螺杆轴7和从轴部111径向向外突出的齿部112.齿部112包括相对于螺杆轴7的旋转方向形成在前侧的齿面116, 并且随着其从轴部111径向向外转变而相对于旋转方向逐渐向前倾斜。