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    • 74. 发明授权
    • Composite materials comprising PPTA and nanotubes
    • 包含PPTA和纳米管的复合材料
    • US07534486B2
    • 2009-05-19
    • US10588160
    • 2005-03-18
    • Hanneke BoerstoelHendrik SwierengaAart Klinkhamer
    • Hanneke BoerstoelHendrik SwierengaAart Klinkhamer
    • B32B27/04
    • D01F1/02B82Y30/00D01D1/02D01F6/605Y10T428/249924Y10T428/24994Y10T428/2913Y10T428/2927Y10T428/30
    • The invention pertains to a composite material comprising PPTA (poly-p-phenyleneterephthalamide) and nanotubes having an aspect ratio of at least 100 and a cross-sectional diameter of 5 nm or less, the composite material containing up to 12 wt. % of nanotubes, obtainable by adding the nanotubes to sulfuric acid, decreasing the temperature to solidify the mixture, adding PPTA to the solid mixture, heating to above the solidifying point and mixing the mixture, and spinning, casting, or molding the mixture to the composite material.The process comprises the steps: a) adding nanotubes having an aspect ratio of at least 100 and a cross-sectional diameter of 5 nm or less to sulfuric acid at a temperature above the solidifying point of the sulfuric acid; b) decreasing the temperature to below the solidifying point of the sulfuric acid and mixing for a sufficient time to solidify the mixture; c) adding PPTA to the solid mixture; and d) heating to above the solidifying point and mixing the mixture.
    • 本发明涉及包含PPTA(聚对苯二甲酰对苯二胺)和纵横比至少为100且横截面直径为5nm或更小的纳米管的复合材料,该复合材料含有至多12wt。 通过将纳米管加入到硫酸中可获得的纳米管的百分比,降低温度以固化混合物,将PPTA加入到固体混合物中,加热到凝固点上方并混合该混合物,并将该混合物纺丝, 复合材料。 该方法包括以下步骤:a)在高于硫酸固化点的温度下,向硫酸中加入纵横比为至少100,横截面直径为5nm或更小的纳米管; b)将温度降低到硫酸的凝固点以下并混合足够的时间以固化混合物; c)向固体混合物中加入PPTA; 和d)加热到固化点上方并混合混合物。
    • 78. 发明申请
    • Near Infrared Absorbing Fiber and Fiber Article Using Same
    • 近红外吸收纤维和纤维制品使用相同
    • US20080308775A1
    • 2008-12-18
    • US11665009
    • 2005-10-24
    • Kayo Yabuki
    • Kayo Yabuki
    • F21V9/04
    • D01F1/10D01F6/62D06M11/48D06M23/08D06M2200/30Y10T428/256Y10T428/2913Y10T428/2915Y10T428/2927Y10T428/2933Y10T428/294Y10T428/2958Y10T428/2964
    • An inexpensive fiber that has heat retaining properties, satisfactory weather resistance and heat absorption efficiency, and includes a heat absorbing material having excellent transparency; and a fiber article that uses the fiber. A particle dispersion of Cs0.33WO3 is obtained by mixing Cs0.33WO3 microparticles, toluene, and a microparticle dispersing agent to create a liquid dispersion, and then removing the toluene. The particle dispersion is added to and uniformly mixed with pellets of polyethylene terephthalate resin, after which the mixture is extruded, the strands thus obtained are formed into pellets, and a master batch including Cs0.33WO3 microparticles is obtained. This master batch is mixed with a master batch to which inorganic microparticles have not been added, and the mixture thus obtained is melt spun and stretched to manufacture a polyester multifilament yarn. The polyester multifilament yarn is cut, polyester staple fibers are created, and a spun yarn is manufactured. A heat retentive knit article is obtained using the spun yarn.
    • 具有保温性,耐候性和吸热效果好的廉价纤维,具有透明性优异的吸热材料, 以及使用该纤维的纤维制品。 通过混合Cs0.33WO3微粒,甲苯和微粒分散剂以产生液体分散体,然后除去甲苯,得到Cs0.33WO3的颗粒分散体。 将颗粒分散体加入并与聚对苯二甲酸乙二醇酯树脂颗粒均匀混合,然后将混合物挤出,将得到的线形成颗粒,得到包含Cs0.33WO3微粒的母料。 将该母料与未添加无机微粒的母料混合,将得到的混合物熔融纺丝并拉伸,制造聚酯复丝纱线。 聚酯复丝纱线被切割,生成聚酯短纤维,制造细纱。 使用细纱获得保温针织物。