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。

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。

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。

公开(公告)号：US10435293B2

公开(公告)日：2019-10-08

申请号：US12925047

申请日：2010-10-13

申请人： Jin Ho Kang ,  Cheol Park ,  Joycelyn S. Harrison ,  Michael W. Smith ,  Sharon E. Lowther ,  Jae-Woo Kim ,  Godfrey Sauti

发明人： Jin Ho Kang ,  Cheol Park ,  Joycelyn S. Harrison ,  Michael W. Smith ,  Sharon E. Lowther ,  Jae-Woo Kim ,  Godfrey Sauti

IPC分类号： B82Y40/00 ,  B82Y30/00 ,  H01L41/08 ,  H01L41/293 ,  H01L41/00 ,  H01L41/37 ,  G01R29/14

摘要： Formation of a boron nitride nanotube nanocomposite film by combining a boron nitride nanotube solution with a matrix such as a polymer or a ceramic to form a boron nitride nanotube/polyimide mixture and synthesizing a boron nitride nanotube/polyimide nanocomposite film as an electroactive layer.

公开(公告)号：US20110192016A1

公开(公告)日：2011-08-11

申请号：US12925047

申请日：2010-10-13

申请人： Jin Ho Kang ,  Cheol Park ,  Joycelyn S. Harrison ,  Michael W. Smith ,  Sharon E. Lowther ,  Jae-Woo Kim ,  Godfrey Sauti

发明人： Jin Ho Kang ,  Cheol Park ,  Joycelyn S. Harrison ,  Michael W. Smith ,  Sharon E. Lowther ,  Jae-Woo Kim ,  Godfrey Sauti

IPC分类号： H05K13/00 ,  H01L41/26 ,  H01L41/24 ,  B82Y99/00 ,  B82Y30/00

CPC分类号： B82Y40/00 ,  B82Y30/00 ,  G01R29/14 ,  H01L41/00 ,  H01L41/0805 ,  H01L41/082 ,  H01L41/293 ,  H01L41/37 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/49155

摘要： Electroactive actuation characteristics of novel BNNT based materials are described. Several series of BNNT based electroactive materials including BNNT/polyimide composites and BNNT films are prepared. The BNNT based electroactive materials show high piezoelectric coefficients, d13, about 14.80 pm/V as well as high electrostrictive coefficients, M13, 3.21×10−16 pm2N2. The BNNT based electroactive materials will be used for novel electromechanical energy conversion devices.

摘要翻译： 描述了新型BNNT基材料的电活性致动特性。 制备了几种BNNT基电活性材料系列，包括BNNT /聚酰亚胺复合材料和BNNT薄膜。 基于BNNT的电活性材料显示出高压电系数d13，约14.80μm/ V以及高电致伸缩系数M13,3.21×10-16pm2N2。 基于BNNT的电活性材料将用于新型机电能量转换装置。

公开(公告)号：US20120186742A1

公开(公告)日：2012-07-26

申请号：US13136216

申请日：2011-07-26

申请人： Jin Ho Kang ,  Cheol Park ,  Godfrey Sauti ,  Michael W. Smith ,  Kevin C. Jordan ,  Sharon E. Lowther ,  Robert George Bryant

发明人： Jin Ho Kang ,  Cheol Park ,  Godfrey Sauti ,  Michael W. Smith ,  Kevin C. Jordan ,  Sharon E. Lowther ,  Robert George Bryant

IPC分类号： B29C70/50 ,  C08L33/24 ,  C08K3/38 ,  B82Y40/00 ,  B82Y30/00

CPC分类号： B32B5/26 ,  B32B2260/046 ,  B32B2262/0269 ,  B32B2264/107 ,  B32B2307/554 ,  B32B2307/558 ,  B32B2571/02 ,  B82Y30/00 ,  C08J5/005 ,  C08J5/046 ,  C08J2375/04 ,  D01D5/38 ,  D01F1/10 ,  F41H5/0414 ,  F41H5/0442 ,  F41H5/0471 ,  F41H5/0485

摘要： Boron nitride nanotubes (BNNTs), boron nitride nanoparticles (BNNPs), carbon nanotubes (CNTs), graphites, or combinations, are incorporated into matrices of polymer, ceramic or metals. Fibers, yarns, and woven or nonwoven mats of BNNTs are used as toughening layers in penetration resistant materials to maximize energy absorption and/or high hardness layers to rebound or deform penetrators. They can be also used as reinforcing inclusions combining with other polymer matrices to create composite layers like typical reinforcing fibers such as Kevlar®, Spectra®, ceramics and metals. Enhanced wear resistance and usage time are achieved by adding boron nitride nanomaterials, increasing hardness and toughness. Such materials can be used in high temperature environments since the oxidation temperature of BNNTs exceeds 800° C. in air. Boron nitride based composites are useful as strong structural materials for anti-micrometeorite layers for spacecraft and space suits, ultra strong tethers, protective gear, vehicles, helmets, shields and safety suits/helmets for industry.

摘要翻译： 氮化硼纳米管（BNNTs），氮化硼纳米颗粒（BNNP），碳纳米管（CNTs），石墨或组合被掺入聚合物，陶瓷或金属的基体中。 BNNTs的纤维，纱线和织造或非织造毡被用作耐渗透材料中的增韧层，以使能量吸收和/或高硬度层最大化以使穿透物反弹或变形。 它们也可以用作与其他聚合物基质结合的增强夹杂物，以产生像典型的增强纤维如Kevlar，Spectra，陶瓷和金属的复合层。 增加耐磨性和使用时间可以通过添加氮化硼纳米材料来提高硬度和韧性。 这种材料可以在高温环境中使用，因为BNNT的氧化温度在空气中超过800℃。 氮化硼基复合材料可用作航天器和太空服，超强系绳，防护装备，车辆，头盔，护罩和工业用安全套/头盔的抗微陨石层的强结构材料。

公开(公告)号：US10262951B2

公开(公告)日：2019-04-16

申请号：US14279601

申请日：2014-05-16

申请人： Jin Ho Kang ,  Godfrey Sauti ,  Cheol Park ,  Luke Gibbons ,  Sheila Ann Thibeault ,  Sharon E. Lowther ,  Robert G. Bryant

发明人： Jin Ho Kang ,  Godfrey Sauti ,  Cheol Park ,  Luke Gibbons ,  Sheila Ann Thibeault ,  Sharon E. Lowther ,  Robert G. Bryant

IPC分类号： H01L21/44 ,  H01L23/556 ,  H01L23/552 ,  H01L21/78 ,  H01L23/31 ,  H01L21/311 ,  H01L23/495 ,  H01L23/00

摘要： A novel radiation hardened chip package technology protects microelectronic chips and systems in aviation/space or terrestrial devices against high energy radiation. The proposed technology of a radiation hardened chip package using rare earth elements and mulitlayered structure provides protection against radiation bombardment from alpha and beta particles to neutrons and high energy electromagnetic radiation.

公开(公告)号：US09067385B2

公开(公告)日：2015-06-30

申请号：US13136216

申请日：2011-07-26

申请人： Jin Ho Kang ,  Cheol Park ,  Godfrey Sauti ,  Michael W. Smith ,  Kevin C. Jordan ,  Sharon E. Lowther ,  Robert George Bryant

发明人： Jin Ho Kang ,  Cheol Park ,  Godfrey Sauti ,  Michael W. Smith ,  Kevin C. Jordan ,  Sharon E. Lowther ,  Robert George Bryant

IPC分类号： C09J5/00 ,  C04B37/00 ,  C08K3/00 ,  B32B5/26 ,  F41H5/04 ,  B82Y30/00

CPC分类号： B32B5/26 ,  B32B2260/046 ,  B32B2262/0269 ,  B32B2264/107 ,  B32B2307/554 ,  B32B2307/558 ,  B32B2571/02 ,  B82Y30/00 ,  C08J5/005 ,  C08J5/046 ,  C08J2375/04 ,  D01D5/38 ,  D01F1/10 ,  F41H5/0414 ,  F41H5/0442 ,  F41H5/0471 ,  F41H5/0485

摘要： Boron nitride nanotubes (BNNTs), boron nitride nanoparticles (BNNPs), carbon nanotubes (CNTs), graphites, or combinations, are incorporated into matrices of polymer, ceramic or metals. Fibers, yarns, and woven or nonwoven mats of BNNTs are used as toughening layers in penetration resistant materials to maximize energy absorption and/or high hardness layers to rebound or deform penetrators. They can be also used as reinforcing inclusions combining with other polymer matrices to create composite layers like typical reinforcing fibers such as Kevlar®, Spectra®, ceramics and metals. Enhanced wear resistance and usage time are achieved by adding boron nitride nanomaterials, increasing hardness and toughness. Such materials can be used in high temperature environments since the oxidation temperature of BNNTs exceeds 800° C. in air. Boron nitride based composites are useful as strong structural materials for anti-micrometeorite layers for spacecraft and space suits, ultra strong tethers, protective gear, vehicles, helmets, shields and safety suits/helmets for industry.

摘要翻译： 氮化硼纳米管（BNNTs），氮化硼纳米颗粒（BNNP），碳纳米管（CNTs），石墨或组合被掺入聚合物，陶瓷或金属的基体中。 BNNTs的纤维，纱线和织造或非织造毡被用作耐渗透材料中的增韧层，以使能量吸收和/或高硬度层最大化以使穿透物反弹或变形。 它们也可以用作与其他聚合物基质结合的增强夹杂物，以产生像典型的增强纤维如Kevlar，Spectra，陶瓷和金属的复合层。 增加耐磨性和使用时间可以通过添加氮化硼纳米材料来提高硬度和韧性。 这种材料可以在高温环境中使用，因为BNNT的氧化温度在空气中超过800℃。 氮化硼基复合材料可用作航天器和太空服，超强系绳，防护装备，车辆，头盔，护罩和工业用安全套/头盔的抗微陨石层的强结构材料。