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    • 2. 发明申请
    • Modified discontinuous glass fibers for use in the formation of thermoplastic fiber-reinforced composite articles
    • 用于形成热塑性纤维增强复合制品的改性不连续玻璃纤维
    • US20080160286A1
    • 2008-07-03
    • US11645963
    • 2006-12-27
    • Jawed AsrarThomas Burghardt
    • Jawed AsrarThomas Burghardt
    • B32B5/16D02G3/18B29C45/14C03C17/22
    • B29C45/0005B29C43/003B29C70/12B29C70/16B82Y30/00C03C25/20C03C25/28C03C25/47Y10T428/25Y10T428/2927
    • Surface-modified discontinuous glass fibers are provided for incorporation in a thermoplastic matrix to form a fiber-reinforced composite article by injection or compression molding which displays enhanced mechanical properties, including improved tensile strength. Good binding between the discontinuous glass fibers and the thermoplastic matrix is achieved through the presence of finely roughened surfaces on the fibers of nanoparticles of an inorganic material. Such nanoparticles are provided from an alkaline aqueous size composition containing the nanoparticles dispersed therein (as described). The glass fibers are initially provided in continuous form followed by cutting into discontinuous lengths and drying with the retention of the nanoparticles on the surfaces of the fibers. Improved color in the resulting injection or compression molded thermoplastic discontinuous glass fiber-reinforced composite articles is made possible in combination with enhanced mechanical properties.
    • 提供表面改性的不连续玻璃纤维用于结合到热塑性基质中以通过注射或压缩模塑形成纤维增强复合制品,其显示增强的机械性能,包括改进的拉伸强度。 通过在无机材料的纳米颗粒的纤维上存在细粗糙表面,实现不连续玻璃纤维和热塑性基体之间的良好结合。 这种纳米颗粒由含有分散在其中的纳米颗粒的碱性水性组合物提供(如所述)。 玻璃纤维最初以连续形式提供,然后切割成不连续的长度,并将纳米颗粒保留在纤维的表面上进行干燥。 所得到的注射或压塑热塑性不连续玻璃纤维增​​强复合制品中的改进的颜色可以与增强的机械性能相结合。
    • 6. 发明申请
    • Modified fibers for use in the formation of thermoplastic fiber-reinforced composite articles and process
    • 用于形成热塑性纤维增强复合制品的改性纤维和工艺
    • US20080160302A1
    • 2008-07-03
    • US11699516
    • 2007-01-29
    • Jawed AsrarThomas Burghardt
    • Jawed AsrarThomas Burghardt
    • D02G3/00B29D11/00C03B37/16
    • D06M13/513C03C25/42C03C25/47C08J5/08C08J2323/12D06M11/00D06M11/79D06M15/227D06M23/08D06M2200/50Y10T428/24372Y10T428/2933Y10T428/2938
    • A surface-modified fibrous material is provided for incorporation in a thermoplastic matrix to form a fiber-reinforced composite article. Good binding between the fibrous material and the thermoplastic matrix is achieved through the presence of finely roughened surfaces on the fibers of nanoparticles of an inorganic material. Such nanoparticles are provided from an alkaline aqueous size composition containing the nanoparticles dispersed therein (as described). The fibrous material may be provided in continuous or discontinuous form. In a preferred embodiment glass fibers are initially provided in continuous form followed by cutting into discontinuous lengths and drying with the retention of the nanoparticles on the surfaces of the fibers. The surface-roughened fibrous material is incorporated in a thermoplastic matrix as fibrous reinforcement with the application of heat whereby the thermoplastic matrix is rendered melt processable. In preferred embodiments injection or compression molding is utilized. Improved long-fiber thermoplastics also may be formed to advantage.
    • 提供表面改性的纤维材料用于结合到热塑性基质中以形成纤维增强的复合制品。 通过在无机材料的纳米颗粒的纤维上存在细粗糙表面,可以实现纤维材料与热塑性基体之间的良好结合。 这种纳米颗粒由含有分散在其中的纳米颗粒的碱性水性组合物提供(如所述)。 纤维材料可以以连续或不连续形式提供。 在优选实施方案中,玻璃纤维最初以连续形式提供,随后切割成不连续的长度,并且通过在纤维的表面上保留纳米颗粒进行干燥。 表面粗糙化的纤维材料通过施加热量被结合到作为纤维增强材料的热塑性基质中,由此使热塑性基质熔融加工。 在优选实施例中,使用注射或压缩成型。 也可以形成改进的长纤维热塑性塑料。