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    • 2. 发明申请
    • Electrically conductive, optically transparent films of exfoliated graphite nanoparticles and methods of making the same
    • 剥离石墨纳米粒子的导电,光学透明薄膜及其制备方法
    • US20100092809A1
    • 2010-04-15
    • US12587645
    • 2009-10-09
    • Lawrence T. DrzalSanjib Biswas
    • Lawrence T. DrzalSanjib Biswas
    • H01M8/00B05D5/12H01M10/00H01M6/02B32B5/00
    • H01M4/1393H01M4/0416H01M4/133H01M4/583H01M4/881H01M4/8882H01M4/96Y10T428/26
    • Fabrication techniques are disclosed for the formation of electrically conductive, optically transparent films of exfoliated graphite nanoparticles (EGN). The techniques allow the controlled deposition of EGN nanoplatelets (graphene sheets) and other nanoparticles (e.g., metals, metal oxides) in compact monolayer or multilayer film structures. The compact films have high electrical conductivities and optical transparencies in the visible spectrum of electromagnetic radiation. A first method relates to the deposition of nanoparticles onto a substrate from a bulk suspension using a convective assembly technique. A second method relates to the suspension deposition of EGN nanoplatelets from a from a liquid-liquid interface onto a substrate. Both methods can be used to form EGN film-coated substrates. The second method also can be used to form multilayer, free-standing, defect-free EGN films. The processes have the potential to produce transparent conductors as a replacement for indium tin oxide (ITO) and fluorine tin oxide (FTO) in optoelectronics applications.
    • 公开了用于形成剥离石墨纳米颗粒(EGN)的导电的,光学透明的膜的制造技术。 这些技术允许将EGN纳米片(石墨烯片)和其它纳米颗粒(例如,金属,金属氧化物)控制沉积在致密单层或多层膜结构中。 致密膜在电磁辐射的可见光谱中具有高电导率和光学透明度。 第一种方法涉及使用对流装配技术从大块悬浮液将纳米颗粒沉积到基底上。 第二种方法涉及将EGN纳米片从液 - 液界面悬浮沉积到基底上。 这两种方法都可以用于形成EGN薄膜基材。 第二种方法也可用于形成多层,独立,无缺陷的EGN膜。 这些工艺有可能在光电子应用中生产透明导体作为铟锡氧化物(ITO)和氟氧化锡(FTO)的替代品。
    • 5. 发明授权
    • Method and apparatus for determining and quantifying resistance to scuff
damage of a film adhered on a panel
    • 用于确定和定量粘附在面板上的胶片对擦伤力的抵抗力的方法和装置
    • US6000284A
    • 1999-12-14
    • US832385
    • 1997-04-02
    • Euy-Sik Eugene ShinRoger J. MorganLawrence T. Drzal
    • Euy-Sik Eugene ShinRoger J. MorganLawrence T. Drzal
    • G01N3/42G01N3/46G01N3/56
    • G01N3/46G01N3/42
    • A method and system (100) for determining and quantifying the resistance to scuff damage of a film (152) adhered to a substrate (150) of a panel (154), is described. The system includes a computer (102), pressure control valves (104) and a test module (10). The test module has an indentor support plate (12) with an indentor (24 or 224), a compression moving plate (14) and an end plate (16). The plates are connected together by rods (18). The indentor support plate and the end plate are mounted at opposite ends of the rods with the compression moving plate mounted therebetween. An actuator (36) having bellows (42) is mounted between the end plate and the compression moving plate. The panel is mounted on a sliding panel support plate (58) which is connected to a load cell (106). In use, the panel support plate and the panel are positioned between the compression moving plate and the indentor support plate so that the indentor is adjacent the film on the substrate. Next, air is provided to the actuator which moves the moving plate toward the indentor support plate and causes the indentor to make contact with the film on the substrate. The panel support plate and the panel are moved down between the plates such that the indentor produces a scuff on the film. The indentation load on the panel is read by the computer from the load cell.
    • 描述了用于确定和定量粘附到面板(154)的基板(150)上的薄膜(152)的抗磨损性的方法和系统(100)。 该系统包括计算机(102),压力控制阀(104)和测试模块(10)。 测试模块具有带有压头(24或224),压缩移动板(14)和端板(16)的压头支撑板(12)。 板通过杆(18)连接在一起。 压头支撑板和端板安装在杆的相对端,压缩移动板安装在它们之间。 具有波纹管(42)的致动器(36)安装在端板和压缩移动板之间。 面板安装在与负载传感器(106)连接的滑动面板支撑板(58)上。 在使用中,面板支撑板和面板位于压缩移动板和压头支撑板之间,使得压头邻近衬底上的膜。 接下来,向致动器提供空气,致动器将移动板朝向压头支撑板移动,并使压头与基板上的膜接触。 面板支撑板和面板在板之间向下移动,使得压头在薄膜上产生磨损。 面板上的压痕负载由计算机从称重传感器读取。
    • 7. 发明授权
    • Nanoparticle graphite-based minimum quantity lubrication method and composition
    • 纳米石墨基最小润滑方法及组成
    • US09080122B2
    • 2015-07-14
    • US12655649
    • 2010-01-05
    • Patrick KwonLawrence T. Drzal
    • Patrick KwonLawrence T. Drzal
    • C10M125/02
    • C10M125/02C10M2201/041C10M2207/401C10N2220/08C10N2220/082C10N2230/06C10N2230/40C10N2240/401C10N2240/402C10N2250/12C10N2270/00
    • A lubricant composition is disclosed that includes (a) a machining oil and (b) an exfoliated graphite nanoparticle (EGN) material stably dispersed in the machining oil. The lubricant composition is a stable suspension and is suitable for use as a liquid lubricant in a Minimum Quantity Lubrication (MQL) process. In the MQL process, the lubricant composition is applied/transferred to a worksite in the form of a mist. The presence of the EGN material in the lubricant composition provides high-temperature stability and lubricity under MQL conditions. A very small amount is transferred especially at high cutting speeds where the mist of the machining oil evaporates, but the EGN material remains on the surface to provide lubricity. Any operation involving machining can benefit from this lubricant composition. The method provides important benefits of reducing chipping on cutting tools and providing the additional lubricity especially when the cutting become very hot and thus extending tool life.
    • 公开了一种润滑剂组合物,其包括(a)机械油和(b)稳定分散在机械油中的剥离石墨纳米颗粒(EGN)材料。 润滑剂组合物是稳定的悬浮液,适用于最小数量润滑(MQL)工艺中的液体润滑剂。 在MQL工艺中,将润滑剂组合物以薄雾的形式施加/转移到工地。 EGN材料在润滑剂组合物中的存在可在MQL条件下提供高温稳定性和润滑性。 特别是在加工油雾蒸发的高切削速度下,非常少量的转移,但是EGN材料保留在表面上以提供润滑性。 任何涉及加工的操作均可从该润滑剂组合物中受益。 该方法提供了减少切削刀具切屑和提供附加润滑性的重要优点,特别是当切削变得非常热并因此延长刀具寿命时。