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209 条记录 (耗时 0.036 秒)

    Method for making reinforced polymer matrix composites
    81.
    发明授权
    Method for making reinforced polymer matrix composites 有权
    制备增强聚合物基体复合材料的方法

    公开(公告)号：US08445587B2

    公开(公告)日：2013-05-21

    申请号：US12838474

    申请日：2010-07-18

    申请人： Dongsheng Mao ,  Zvi Yaniv

    发明人： Dongsheng Mao ,  Zvi Yaniv

    IPC分类号： C08K13/02 ,  C08K9/02 ,  C08K3/10 ,  C08K3/34 ,  C08K3/36 ,  C08K3/38 ,  C08K3/40

    CPC分类号： B02C17/10 ,  B82Y30/00 ,  C08J3/203 ,  C08J5/005 ,  C08J2377/04 ,  C08K3/01 ,  C08L77/00

    摘要： Improved mechanical properties of either clay or carbon nanotube (CNT)-reinforced polymer matrix nanocomposites are obtained by pre-treating nanoparticles and polymer pellets prior to a melt compounding process. The clay or CNTs are coated onto the surfaces of the polymer pellets by a milling process. The introduction of moisture into the mixture of the nanoparticles and the polymer pellets results in the nanoparticles more easily, firmly, and thoroughly coating onto the surfaces of the polymer pellets.

    摘要翻译： 通过在熔融混合过程之前预处理纳米颗粒和聚合物颗粒，获得粘土或碳纳米管（CNT）增强的聚合物基质纳米复合材料的改进的机械性能。 通过研磨方法将粘土或CNT涂覆在聚合物颗粒的表面上。 将水分引入纳米颗粒和聚合物颗粒的混合物中导致纳米颗粒更容易，牢固地且完全地涂覆在聚合物颗粒的表面上。

    Method and apparatus for sensing hydrogen gas
    85.
    发明授权
    Method and apparatus for sensing hydrogen gas 失效
    检测氢气的方法和装置

    公开(公告)号：US07762121B2

    公开(公告)日：2010-07-27

    申请号：US11928373

    申请日：2007-10-30

    申请人： Kwok Ng ,  Greg Monty ,  Yunjun Li ,  Zvi Yaniv ,  Prabhu Soundarrajan

    发明人： Kwok Ng ,  Greg Monty ,  Yunjun Li ,  Zvi Yaniv ,  Prabhu Soundarrajan

    IPC分类号： G01N27/04 ,  G01N30/64 ,  G01N33/22

    CPC分类号： B82Y15/00 ,  G01N27/127 ,  G01N33/005

    摘要： A hydrogen sensor and/or switch fabricated from an array of nanowires or a nanoparticle thick film composed of metal or metal alloys. The sensor and/or switch demonstrates a wide operating temperature range and shortened response time due to fabrication materials and methods. The nanowires or nanoparticle thick films demonstrate an increase in conductivity in the presence of hydrogen.

    摘要翻译： 由纳米线阵列或由金属或金属合金构成的纳米颗粒厚膜制成的氢传感器和/或开关。 由于制造材料和方法，传感器和/或开关显示出宽的工作温度范围和缩短的响应时间。 在存在氢的情况下，纳米线或纳米颗粒厚膜表现出导电性的增加。

    Enhanced electron field emission from carbon nanotubes without activation
    86.
    发明授权
    Enhanced electron field emission from carbon nanotubes without activation 有权
    来自碳纳米管的未激活的增强的电子场发射

    公开(公告)号：US07736209B2

    公开(公告)日：2010-06-15

    申请号：US11215696

    申请日：2005-08-30

    申请人： Dongsheng Mao ,  Richard Fink ,  Zvi Yaniv

    发明人： Dongsheng Mao ,  Richard Fink ,  Zvi Yaniv

    IPC分类号： H01J9/00

    CPC分类号： H01J1/304 ,  B82Y10/00 ,  H01J9/025 ,  H01J31/127 ,  H01J2201/30469

    摘要： A method for forming cathodes for use in field emission devices using nanoparticles, such as carbon nanotubes (CNTs), is disclosed. The CNT layer comprises the electron emitting material on the surface of the cathode. Using the methods of the present invention, the density of the deposited CNTs may be modulated by forming emitter islands on the surface of the cathode. The size and distribution of the CNT emitter islands serve to optimize the field emission properties of the resulting CNT layer. In one embodiment, the CNT emitter islands are formed using a screen-printing deposition method. The present invention may be practiced without further process steps after deposition which activate or align the carbon nanotubes for field emission.

    摘要翻译： 公开了一种用于形成使用纳米颗粒的场发射器件（例如碳纳米管（CNTs））的阴极的方法。 CNT层包括阴极表面上的电子发射材料。 使用本发明的方法，沉积的CNT的密度可以通过在阴极的表面上形成发射极岛来调制。 CNT发射体岛的尺寸和分布用于优化所得CNT层的场致发射性质。 在一个实施例中，使用丝网印刷沉积方法形成CNT发射岛。 本发明可以在沉积之后没有进一步的工艺步骤来实现，其激活或对准用于场发射的碳纳米管。

    Remote identification of explosives and other harmful materials
    87.
    发明授权
    Remote identification of explosives and other harmful materials 失效
    远程识别爆炸物和其他有害物质

    公开(公告)号：US07632548B2

    公开(公告)日：2009-12-15

    申请号：US10633335

    申请日：2003-08-01

    申请人： Zvi Yaniv

    发明人： Zvi Yaniv

    IPC分类号： B05D3/06

    CPC分类号： G01N21/643 ,  B82Y30/00 ,  G01N33/0057

    摘要： The present invention is for a process of sensing chemicals with nanoparticles, particularly nanoparticles whose bandgap has been altered from that of their corresponding bulk material by reducing their particle size below their quantum confinement threshold. The photoluminescent properties of these nanoparticles can be altered as a result of interaction with their chemical environment. Thus, by carefully understanding how a particular chemical species alters the chemical environment and changes the photoluminescence of the nanoparticles, the identification of—and the screening for—a wide range of chemical species can be accomplished. Furthermore, in embodiments in which the chemical species of interest is a harmful material, detection and screening of said harmful material can be carried out in a pre-emptive manner.

    摘要翻译： 本发明涉及一种用纳米颗粒感测化学品的方法，特别是纳米颗粒的带隙已经通过将它们的粒度降低到其量子限制阈值以下而与其相应的本体材料的带隙相比较。 这些纳米颗粒的光致发光性能可能因与其化学环境的相互作用而改变。 因此，通过仔细了解特定化学物质如何改变化学环境并改变纳米颗粒的光致发光，可以实现对多种化学物质的鉴定和筛选。 此外，在感兴趣的化学物质是有害物质的实施方案中，可以以优先的方式进行所述有害物质的检测和筛选。