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    Surface treatment
    1.
    发明授权
    Surface treatment 失效
    表面处理

    公开(公告)号：US06521052B2

    公开(公告)日：2003-02-18

    申请号：US09780132

    申请日：2001-02-09

    申请人： Cheol Park ,  Sharon E. Lowther ,  Terry L. St. Clair

    发明人： Cheol Park ,  Sharon E. Lowther ,  Terry L. St. Clair

    IPC分类号： C23C2200

    CPC分类号： C23C22/66 ,  C23C22/62 ,  C23C22/64 ,  C23C22/78

    摘要： A simple surface treatment process is provided which offers a high performance surface for a variety of applications at low cost. This novel surface treatment, which is particularly useful for Ti-6Al-4V alloys, is achieved by forming oxides on the surface with a two-step chemical process and without mechanical abrasion. First, after solvent degreasing, sulfuric acid is used to generate a fresh titanium surface. Next, an alkaline perborate solution is used to form an oxide on the surface. This acid-followed-by-base treatment is cost effective and relatively safe to use in commercial applications. In addition, it is chromium-free, and has been successfully used with a sol-gel coating to afford a strong adhesive bond that exhibits excellent durability after the bonded specimens have been subjected to a harsh 72 hour water boil immersion. Phenylethynyl containing adhesives were used to evaluate this surface treatment with a novel coupling agent containing both trialkoxysilane and phenylethynyl groups.

    摘要翻译： 提供了一种简单的表面处理工艺，为低成本的各种应用提供了高性能表面。 对Ti-6Al-4V合金特别有用的这种新型表面处理是通过在两个阶段的化学工艺上形成氧化物并且没有机械磨损来实现的。 首先，在溶剂脱脂后，使用硫酸生成新鲜的钛表面。 接下来，使用碱性过硼酸盐溶液在表面上形成氧化物。 这种酸 - 逐个处理在商业应用中具有成本效益和相对安全性。 此外，它是无铬的，并且已经成功地用于溶胶 - 凝胶涂层以提供强烈的粘合剂粘合，其在粘合的样品经受了苛刻的72小时水煮浸渍后显示出优异的耐久性。 使用含苯基乙炔基的粘合剂来评价该表面处理，其中含有三烷氧基硅烷和苯基乙炔基的新型偶联剂。

    Metallized nanotube polymer composite (MNPC) and methods for making same
    4.
    发明授权
    Metallized nanotube polymer composite (MNPC) and methods for making same 有权
    金属化纳米管聚合物复合材料（MNPC）及其制备方法

    公开(公告)号：US09550870B2

    公开(公告)日：2017-01-24

    申请号：US12313945

    申请日：2008-11-26

    申请人： Cheol Park ,  Joycelyn S. Harrison ,  Negin Nazem ,  Larry Taylor ,  Jin Ho Kang ,  Jae-Woo Kim ,  Godfrey Sauti ,  Peter T. Lillehei ,  Sharon E. Lowther

    发明人： Cheol Park ,  Joycelyn S. Harrison ,  Negin Nazem ,  Larry Taylor ,  Jin Ho Kang ,  Jae-Woo Kim ,  Godfrey Sauti ,  Peter T. Lillehei ,  Sharon E. Lowther

    IPC分类号： C08J7/02 ,  B29C70/88 ,  C08J3/20 ,  C08J7/06 ,  B29K105/16 ,  B82Y30/00

    CPC分类号： C08J7/02 ,  B29C70/882 ,  B29K2105/167 ,  B82Y30/00 ,  C08J3/203 ,  C08J7/06 ,  C08J2379/08 ,  Y02P20/544

    摘要： A novel method to develop highly conductive functional materials which can effectively shield various electromagnetic effects (EMEs) and harmful radiations. Metallized nanotube polymer composites (MNPC) are composed of a lightweight polymer matrix, superstrong nanotubes (NT), and functional nanoparticle inclusions. MNPC is prepared by supercritical fluid infusion of various metal precursors (Au, Pt, Fe, and Ni salts), incorporated simultaneously or sequentially, into a solid NT-polymer composite followed by thermal reduction. The infused metal precursor tends to diffuse toward the nanotube surface preferentially as well as the surfaces of the NT-polymer matrix, and is reduced to form nanometer-scale metal particles or metal coatings. The conductivity of the MNPC increases with the metallization, which provides better shielding capabilities against various EMEs and radiations by reflecting and absorbing EM waves more efficiently. Furthermore, the supercritical fluid infusion process aids to improve the toughness of the composite films significantly regardless of the existence of metal.

    摘要翻译： 一种开发高导电功能材料的新方法，可有效屏蔽各种电磁效应（EME）和有害辐射。 金属化纳米管聚合物复合材料（MNPC）由轻质聚合物基体，超细纳米管（NT）和功能性纳米粒子夹杂物组成。 MNPC通过将各种金属前体（Au，Pt，Fe和Ni盐）的超临界流体输注同时或依次并入固体NT-聚合物复合材料中，然后热还原制备。 注入的金属前体倾向于优先扩散到纳米管表面以及NT-聚合物基体的表面，并且被还原以形成纳米级金属颗粒或金属涂层。 MNPC的电导率随着金属化而增加，通过更有效地反射和吸收EM波，可以提供更好的屏蔽能力，抵抗各种EME和辐射。 此外，超临界流体浸渍工艺有助于显着地提高复合膜的韧性，而不管金属的存在。

    Metallized nanotube polymer composite (MNPC) and methods for making same
    6.
    发明申请
    Metallized nanotube polymer composite (MNPC) and methods for making same 有权
    金属化纳米管聚合物复合材料（MNPC）及其制备方法

    公开(公告)号：US20110068291A1

    公开(公告)日：2011-03-24

    申请号：US12313945

    申请日：2008-11-26

    申请人： Cheol Park ,  Joycelyn S. Harrison ,  Negin Nazem ,  Larry T. Taylor ,  Jin Ho Kang ,  Jae-Woo Kim ,  Godfrey Sauti ,  Peter T. Lillehei ,  Sharon E. Lowther

    发明人： Cheol Park ,  Joycelyn S. Harrison ,  Negin Nazem ,  Larry T. Taylor ,  Jin Ho Kang ,  Jae-Woo Kim ,  Godfrey Sauti ,  Peter T. Lillehei ,  Sharon E. Lowther

    IPC分类号： H01F1/26 ,  B05D1/24 ,  B05D3/10 ,  B82Y30/00

    CPC分类号： C08J7/02 ,  B29C70/882 ,  B29K2105/167 ,  B82Y30/00 ,  C08J3/203 ,  C08J7/06 ,  C08J2379/08 ,  Y02P20/544

    摘要： A novel method to develop highly conductive functional materials which can effectively shield various electromagnetic effects (EMEs) and harmful radiations. Metallized nanotube polymer composites (MNPC) are composed of a lightweight polymer matrix, superstrong nanotubes (NT), and functional nanoparticle inclusions. MNPC is prepared by supercritical fluid infusion of various metal precursors (Au, Pt, Fe, and Ni salts), incorporated simultaneously or sequentially, into a solid NT-polymer composite followed by thermal reduction. The infused metal precursor tends to diffuse toward the nanotube surface preferentially as well as the surfaces of the NT-polymer matrix, and is reduced to form nanometer-scale metal particles or metal coatings. The conductivity of the MNPC increases with the metallization, which provides better shielding capabilities against various EMEs and radiations by reflecting and absorbing EM waves more efficiently. Furthermore, the supercritical fluid infusion process aids to improve the toughness of the composite films significantly regardless of the existence of metal.

    摘要翻译： 一种开发高导电功能材料的新方法，可有效屏蔽各种电磁效应（EME）和有害辐射。 金属化纳米管聚合物复合材料（MNPC）由轻质聚合物基体，超细纳米管（NT）和功能性纳米粒子夹杂物组成。 MNPC通过将各种金属前体（Au，Pt，Fe和Ni盐）的超临界流体输注同时或依次并入固体NT-聚合物复合材料中，然后热还原制备。 注入的金属前体倾向于优先扩散到纳米管表面以及NT-聚合物基体的表面，并且被还原以形成纳米级金属颗粒或金属涂层。 MNPC的电导率随着金属化而增加，通过更有效地反射和吸收EM波，可以提供更好的屏蔽能力，抵抗各种EME和辐射。 此外，超临界流体浸渍工艺有助于显着地提高复合膜的韧性，而不管金属的存在。

    Boron nitride and boron nitride nanotube materials for radiation shielding
    10.
    发明申请
    Boron nitride and boron nitride nanotube materials for radiation shielding 审中-公开
    氮化硼和氮化硼纳米管材料用于辐射屏蔽

    公开(公告)号：US20130119316A1

    公开(公告)日：2013-05-16

    申请号：US13068329

    申请日：2011-05-09

    申请人： Godfrey Sauti ,  Cheol Park ,  Jin Ho Kang ,  Jae-Woo Kim ,  Joycelyn S. Harrison ,  Michael W. Smith ,  Kevin Jordan ,  Sharon E. Lowther ,  Peter T. Lillehei ,  Sheila A. Thibeault

    发明人： Godfrey Sauti ,  Cheol Park ,  Jin Ho Kang ,  Jae-Woo Kim ,  Joycelyn S. Harrison ,  Michael W. Smith ,  Kevin Jordan ,  Sharon E. Lowther ,  Peter T. Lillehei ,  Sheila A. Thibeault

    IPC分类号： G21F1/10

    CPC分类号： G21F1/103 ,  G21F1/00

    摘要： Effective radiation shielding is required to protect crew and equipment in various fields including aerospace, defense, medicine and power generation. Light elements and in particular hydrogen are most effective at shielding against high-energy particles including galactic cosmic rays, solar energetic particles and fast neutrons. However, pure hydrogen is highly flammable, has a low neutron absorption cross-section, and cannot be made into structural components. Nanocomposites containing the light elements Boron, Nitrogen, Carbon and Hydrogen as well dispersed boron nano-particles, boron nitride nanotubes (BNNTs) and boron nitride nano-platelets, in a matrix, provide effective radiation shielding materials in various functional forms. Boron and nitrogen have large neutron absorption cross-sections and wide absorption spectra. The incorporation of boron and nitrogen containing nanomaterials into hydrogen containing matrices provides composites that can effectively shield against neutrons and a wide range of radiation species of all energies without fragmentation and the generation of harmful secondary particles.

    摘要翻译： 需要有效的辐射屏蔽来保护航空航天，国防，医药和发电等各个领域的船员和设备。 轻元素，特别是氢是最有效的屏蔽高能粒子，包括星系宇宙射线，太阳能能粒子和快中子。 然而，纯氢是高度易燃的，具有低的中子吸收横截面，并且不能制成结构部件。 含有轻质元素的纳米复合材料可以提供各种功能形式的有效的辐射屏蔽材料，硼，氮，碳和氢以及分散的硼纳米颗粒，氮化硼纳米管（BNNTs）和氮化硼纳米血小板。 硼和氮具有大的中子吸收截面和宽的吸收光谱。 将含硼和氮的纳米材料掺入含氢基质提供了复合材料，可以有效地屏蔽所有能量的中子和宽范围的辐射种类，而不会产生碎片和产生有害的二次粒子。