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    • 3. 发明申请
    • METHOD OF PRODUCING HIGH STRENGTH ELONGATED PRODUCTS CONTAINING NANOTUBES
    • 生产含有纳米粒子的高强度拉伸产品的方法
    • WO2003069032A1
    • 2003-08-21
    • PCT/NL2003/000083
    • 2003-02-07
    • DSM N.V.MARISSEN, RoelofVAN ES, Martin, Antonius
    • MARISSEN, RoelofVAN ES, Martin, Antonius
    • D01F1/10
    • B82Y30/00C08K3/041D01F1/10D01F6/04D01F6/605Y10T428/249945C08L23/06
    • The present invention relates to a method of producing a high strength and high modulus elongated product comprising the steps of (a) making a composition comprising a semi-crystalline polymer and carbon nanotubes, (b) extruding said composition into an elongated product, and (c) stretching the product below the melting point of the polymer, wherein in step (a) the composition is a colloidal dispersion of nanotubes in a solution of the polymer. The advantages of the invention include production of elongated products, like fibres with higher tensile properties, especially strength, with a lower concentration of nanotubes than with a known method. The invention also concerns a high strength elongated product containing nanotubes obtainable by the method according to the invention, especially a polyolefin fibre containing nanotubes having a tensile strength of higher than 3.0 GPa. The invention also relates to a process for making composite articles wherein high strength elongated products, preferably fibres, according to the invention are used and to anti-ballistic composites comprising said products.
    • 本发明涉及一种生产高强度和高模量细长产品的方法,包括以下步骤:制备包含半结晶聚合物和碳纳米管的组合物,b将所述组合物挤出成细长产品,和c将产品拉伸到下面 聚合物的熔点,其中在步骤中组合物是纳米管在聚合物溶液中的胶态分散体。 本发明的优点包括生产细长产品,如具有较高拉伸性能的纤维,特别是强度,具有比已知方法更低的纳米管浓度。 本发明还涉及通过根据本发明的方法获得的含有纳米管的高强度细长产品,特别是含有拉伸强度高于3.0GPa的纳米管的聚烯烃纤维。 本发明还涉及用于制造复合制品的方法,其中使用根据本发明的高强度细长产品,优选纤维,以及包含所述产品的抗弹道复合材料。