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1.发明申请公开(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
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。
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2.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
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。
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3.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
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。
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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
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.
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5.发明申请Energy conversion materials fabricated with boron nitride nanotubes (BNNTs) and BNNT polymer composites 审中-公开用氮化硼纳米管（BNNTs）和BNNT聚合物复合材料制成的能量转换材料公开(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
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。
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公开(公告)号：US07666939B2
公开(公告)日：2010-02-23
申请号：US11432201
申请日：2006-05-11
申请人： Kristopher Eric Wise , Cheol Park , Emilie J. Siochi , Joycelyn S. Harrison , Peter T. Lillehei , Sharon E. Lowther
发明人： Kristopher Eric Wise , Cheol Park , Emilie J. Siochi , Joycelyn S. Harrison , Peter T. Lillehei , Sharon E. Lowther
IPC分类号： C08K3/04
CPC分类号： C08K7/24
摘要： Dispersions of carbon nanotubes exhibiting long term stability are based on a polymer matrix having moieties therein which are capable of a donor-acceptor complexation with carbon nanotubes. The carbon nanotubes are introduced into the polymer matrix and separated therein by standard means. Nanocomposites produced from these dispersions are useful in the fabrication of structures, e.g., lightweight aerospace structures.
摘要翻译： 显示长期稳定性的碳纳米管的分散体基于其中具有其中能够与碳纳米管的供体 - 受体络合的部分的聚合物基质。 将碳纳米管引入聚合物基质中并通过标准方法分离。 由这些分散体制备的纳米复合材料可用于制造结构，例如轻质的航空航天结构。
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公开(公告)号：US20110105293A1
公开(公告)日：2011-05-05
申请号：US12893289
申请日：2010-09-29
CPC分类号： H01B3/38 , C08G73/18 , C08L79/04 , G02F1/0009 , G02F2202/30 , G02F2202/42 , H01B1/12 , H01B3/12
摘要： Metamaterials or artificial negative index materials (NIMs) have generated great attention due to their unique and exotic electromagnetic properties. One exemplary negative dielectric constant material, which is an essential key for creating the NIMs, was developed by doping ions into a polymer, a protonated poly(benzimidazole) (PBI). The doped PBI showed a negative dielectric constant at megahertz (MHz) frequencies due to its reduced plasma frequency and an induction effect. The magnitude of the negative dielectric constant and the resonance frequency were tunable by doping concentration. The highly doped FBI showed larger absolute magnitude of negative dielectric constant at just above its resonance frequency than the less doped PBI.
摘要翻译： 由于其特有的和异乎寻常的电磁特性，超材料或人造负指数材料（NIM）引起了极大的关注。 通过将离子掺杂到聚合物质子化的聚（苯并咪唑）（PBI）中，开发了一种示例性的负介电常数材料，其是产生NIM的关键。 掺杂的PBI由于其降低的等离子体频率和诱导效应而以兆赫（MHz）频率显示出负的介电常数。 负介电常数和谐振频率的大小可以通过掺杂浓度来调节。 高掺杂的FBI在较高的谐振频率下显示出更大的负介电常数绝对值，而不是较少掺杂的PBI。
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公开(公告)号：US08696940B2
公开(公告)日：2014-04-15
申请号：US12893289
申请日：2010-09-29
IPC分类号： H01B1/06
CPC分类号： H01B3/38 , C08G73/18 , C08L79/04 , G02F1/0009 , G02F2202/30 , G02F2202/42 , H01B1/12 , H01B3/12
摘要： Metamaterials or artificial negative index materials (NIMs) have generated great attention due to their unique and exotic electromagnetic properties. One exemplary negative dielectric constant material, which is an essential key for creating the NIMs, was developed by doping ions into a polymer, a protonated poly(benzimidazole) (PBI). The doped PBI showed a negative dielectric constant at megahertz (MHz) frequencies due to its reduced plasma frequency and an induction effect. The magnitude of the negative dielectric constant and the resonance frequency were tunable by doping concentration. The highly doped PBI showed larger absolute magnitude of negative dielectric constant at just above its resonance frequency than the less doped PBI.
摘要翻译： 由于其特有的和异乎寻常的电磁特性，超材料或人造负指数材料（NIM）引起了极大的关注。 通过将离子掺杂到聚合物质子化的聚（苯并咪唑）（PBI）中，开发了一种示例性的负介电常数材料，其是产生NIM的关键。 掺杂的PBI由于其降低的等离子体频率和诱导效应而以兆赫（MHz）频率显示出负的介电常数。 负介电常数和谐振频率的大小可以通过掺杂浓度来调节。 高掺杂的PBI在较高的谐振频率下的负介电常数绝对值大于掺杂较少的PBI。
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公开(公告)号：US07998368B2
公开(公告)日：2011-08-16
申请号：US12272826
申请日：2008-11-18
IPC分类号： H01B1/06
CPC分类号： B82Y30/00 , B82Y40/00 , C01B32/174 , C01B2202/28 , H01M4/92 , H01M4/926 , Y10S977/746 , Y10S977/75 , Y10S977/752
摘要： Carbon nanotubes (CNTs) are dispersed in an aqueous buffer solution consisting of at least 50 weight percent water and a remainder weight percent that includes a buffer material. The buffer material has a molecular structure defined by a first end, a second end, and a middle disposed between the first and second ends. The first end is a cyclic ring with nitrogen and oxygen heteroatomes, the middle is a hydrophobic alkyl chain, and the second end is a charged group.
摘要翻译： 碳纳米管（CNT）分散在由至少50重量％的水组成的缓冲水溶液中，其余的重量百分比包括缓冲材料。 缓冲材料具有由第一端，第二端和设置在第一端和第二端之间的中间限定的分子结构。 第一端是具有氮和氧的杂原子的环状环，中间是疏水性烷基链，第二端是带电基团。
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公开(公告)号：US20090134362A1
公开(公告)日：2009-05-28
申请号：US12272826
申请日：2008-11-18
IPC分类号： H01B1/24
CPC分类号： B82Y30/00 , B82Y40/00 , C01B32/174 , C01B2202/28 , H01M4/92 , H01M4/926 , Y10S977/746 , Y10S977/75 , Y10S977/752
摘要： Carbon nanotubes (CNTs) are dispersed in an aqueous buffer solution consisting of at least 50 weight percent water and a remainder weight percent that includes a buffer material. The buffer material has a molecular structure defined by a first end, a second end, and a middle disposed between the first and second ends. The first end is a cyclic ring with nitrogen and oxygen heteroatomes, the middle is a hydrophobic alkyl chain, and the second end is a charged group.
摘要翻译： 碳纳米管（CNT）分散在由至少50重量％的水组成的缓冲水溶液中，其余的重量百分比包括缓冲材料。 缓冲材料具有由第一端，第二端和设置在第一端和第二端之间的中间限定的分子结构。 第一端是具有氮和氧的杂原子的环状环，中间是疏水性烷基链，第二端是带电基团。
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