ELECTRICALLY CONDUCTIVE COMPOSITE MATERIAL
    21.
    发明申请
    ELECTRICALLY CONDUCTIVE COMPOSITE MATERIAL 有权
    电导电复合材料

    公开(公告)号:US20090117269A1

    公开(公告)日:2009-05-07

    申请号:US11609113

    申请日:2006-12-11

    摘要: An electrically conductive composite material includes metallic nanostrands distributed throughout a matrix constructed of a polymer, ceramic, or elastomer. The nanostrands may have an average diameter under four microns and an average aspect ratio over ten-to-one. Larger fibers may also be included to enhance electrical conductivity or other properties. The nanostrands and/or fibers may be magnetically oriented to enhance electrical conductivity along one direction. A pressure sensor may be formed by utilizing an elastomer for the matrix. Electrical conductivity through the composite material varies in proportion to deflection of the elastomer. A composite material may be applied to a surface as an electrically conductive paint. Composite materials may be made by cutting a blank of the nanostrands to the desired shape, inserting the matrix, and curing the matrix. Alternatively, a suspension agent may first be used to dispose powdered nanostrands in the desired shape.

    摘要翻译: 导电复合材料包括分布在由聚合物,陶瓷或弹性体构成的基体中的金属纳米链。 纳米链可以具有四微米以下的平均直径和十对一的平均纵横比。 也可以包括更大的纤维以增强导电性或其它性质。 纳米链和/或纤维可以是磁性取向的,以增强沿着一个方向的导电性。 可以通过利用用于基质的弹性体来形成压力传感器。 通过复合材料的导电性与弹性体的挠曲成比例地变化。 复合材料可以作为导电涂料施加到表面。 可以通过将纳米链的坯料切割成所需的形状,插入基质和固化基体来制备复合材料。 或者,悬浮剂可以首先用于处理所需形状的粉末状纳米链。

    Wetting indicator for composites
    23.
    发明授权
    Wetting indicator for composites 失效
    复合材料润湿指示剂

    公开(公告)号:US6079351A

    公开(公告)日:2000-06-27

    申请号:US894083

    申请日:1997-08-13

    申请人: Anders Lonno

    发明人: Anders Lonno

    摘要: The invention relates to a device for obtaining, in the manufacture of a high-strength composite, an indication the reinforcement layer of the composite has been wetted throughout by the matrix material of the composite. The reinforcement layer is of the type which mainly consists of fibers or fiber bundles which do not become translucent or transparent when wetted by the matrix material, such as carbon or aramide fibers or fiber bundles. The matrix material of thermosetting plastic is applied in a liquid state in the manufacture according to, for instance, the technique of hand lay-up. The reinforcement layer includes indicating fibers which become translucent or transparent when wetted by the matrix material. A good indication is obtained if the indicating fibers have such properties that they become translucent only when the adjoining reinforcing material has been completely wetted throughout. Preferably the indicating fibres are uniformly distributed across the reinforcement layer and in an amount that does not affect the properties of the composite significantly.

    摘要翻译: PCT No.PCT / SE96 / 00187 Sec。 371日期1997年8月13日 102(e)日期1997年8月13日PCT PCT 1996年2月13日PCT公布。 出版物WO96 / 25655 日期1996年8月22日本发明涉及一种用于在制造高强度复合材料时获得复合材料的增强层已经被复合材料的基体材料润湿的指示。 加强层是主要由纤维或纤维束组成的类型,当由基体材料(例如碳或芳族聚酰胺纤维或纤维束)润湿时,纤维或纤维束不会变得半透明或透明。 热固性塑料的基质材料根据例如手工铺设的技术在制造中以液态施加。 增强层包括当被基质材料润湿时变得半透明或透明的指示纤维。 如果指示纤维具有这样的特性,则仅当相邻的增强材料已经完全润湿时,它们变得半透明才能获得良好的指示。 优选地,指示纤维均匀地分布在加强层上并且以不显着影响复合材料的性质的量。

    Method of stamping composite sheets
    29.
    发明授权
    Method of stamping composite sheets 失效
    冲压复合片材的方法

    公开(公告)号:US5681887A

    公开(公告)日:1997-10-28

    申请号:US678117

    申请日:1996-07-11

    摘要: A method of stamping composite sheets to prepare a molding. The method including heating a plurality of composite sheets and stamping the heated composite sheets in a mold. Each composite sheet comprising a propylene-based resin and a glass fiber mixture. The glass fiber mixture includes short glass fibers and long glass fibers. The weight ratio of the short glass fibers to the long glass fibers in the glass fiber mixture is 2/1-1/2. The weight ratio of the propylene-based resin to the glass fiber mixture is 85/15-50/50. The melt index of the propylene-based resin in the composition making up the composite sheets is 20 g/10 minutes or greater. The resultant composite sheets can be easily handled during the molding process, and exhibit desirable mechanical strength. In addition, the glass fibers fill even the corners of the moldings, thus improving the strength of the edges, and provide uniform mold shrinkage factors, with a low occurrence of deformation and cracking. Furthermore, the resultant composite sheets have desirable shaping properties.

    摘要翻译: 一种压制复合片材以制备模制品的方法。 该方法包括加热多个复合片材并在模具中冲压加热的复合片材。 每个复合片材包含丙烯类树脂和玻璃纤维混合物。 玻璃纤维混合物包括短玻璃纤维和长玻璃纤维。 玻璃纤维混合物中短玻璃纤维与长玻璃纤维的重量比为2 / 1-1 / 2。 丙烯类树脂与玻璃纤维混合物的重量比为85 / 15-50 / 50。 构成复合片材的组合物中丙烯类树脂的熔融指数为20g / 10分钟以上。 所得到的复合片材可以在成型过程中容易地处理,并且表现出期望的机械强度。 此外,玻璃纤维甚至填充模制品的角部,从而提高边缘的强度,并提供均匀的模具收缩因子,并且发生变形和开裂的发生率低。 此外,所得的复合片材具有期望的成形性能。