Fiber-reinforced polyamide composition and method of producing same
    9.
    发明公开
    Fiber-reinforced polyamide composition and method of producing same 失效
    Faserverstärkte聚合物 - Zusammensetzung und Verfahren zu deren Herstellung。

    公开(公告)号:EP0333518A2

    公开(公告)日:1989-09-20

    申请号:EP89302716.9

    申请日:1989-03-20

    IPC分类号: C08L77/00 C08L23/02

    摘要: Fiber-reinforced polymer compositions containing resin components including (a) 30-90 weight % of polyamide resins, and (b) 10-70 weight % of polyolefins + unsaturated carboxylic acid-modified polyolefins, based on the resin components; and (c) 5-50 parts by weight of glass fibers per 100 parts by weight of the total compositions, a molar ratio of end amino groups in the polyamide resins to carboxyl groups in the modified polyolefins being 10-1000. The compositions have a morphology in which polyolefin domains having an average size of 0.5-5 pm are uniformly dispersed in polyamide matrix phases. The are produced by a double-screw extruder having a length/inner diameter (L/D) ratio of 25 or more and having a first hopper (1) for introducing the resin components, a second hopper (3) for introducing the glass fibers, a vent (4) and a die exit (2) in this order, and further having at least one first kneading zone (5) for strongly kneading the resin components, and at least one second kneading zone (6) disposed between the second hopper and the vent for strongly kneading the resin components and the glass fibers.

    摘要翻译: 含有树脂组分的纤维增强聚合物组合物包括(a)30-90重量%的聚酰胺树脂,和(b)基于树脂组分的10-70重量%的聚烯烃+不饱和羧酸改性的聚烯烃; 和(c)每100重量份总组合物为5-50重量份的玻璃纤维,聚酰胺树脂中的末端氨基与改性聚烯烃中的羧基的摩尔比为10-1000。 组合物具有其平均尺寸为0.5-5μm的聚烯烃区域均匀分散在聚酰胺基体相中的形态。 它们通过长度/内径(L / D)比为25以上并具有用于引入树脂成分的第一料斗(1)的双螺杆挤出机生产,用于引入玻璃纤维的第二料斗(3) ,排气口(4)和模具出口(2),并且还具有用于强烈捏合树脂成分的至少一个第一捏合区域(5)和设置在第二混合区域(6)之间的至少一个第二捏合区域(6) 漏斗和用于强烈捏合树脂部件和玻璃纤维的通风口。