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公开(公告)号：US07541509B2
公开(公告)日：2009-06-02
申请号：US11216303
申请日：2005-08-31
申请人： Wolfgang M. Sigmund , Sung-Hwan Lee , Benjamin Koopman , Brij Moudgil , Georgios Pyrgiotakis , Vijay Krishna
发明人： Wolfgang M. Sigmund , Sung-Hwan Lee , Benjamin Koopman , Brij Moudgil , Georgios Pyrgiotakis , Vijay Krishna
CPC分类号： B01J35/004 , A61L9/205 , B01J21/063 , B01J21/185 , B01J37/0217 , B82Y30/00 , C02F1/32 , C02F1/725 , C02F2305/10
摘要： A photocatalyst nanocomposite which can be used to destroying biological agents includes a carbon nanotube core, and a photocatalyst coating layer covalently or ionically bound to a surface of the nanotube core. The coating layer has a nanoscale thickness. A method of forming photocatalytic nanocomposites includes the steps of providing a plurality of dispersed carbon nanotubes, chemically oxidizing the nanotubes under conditions to produce surface functionalized nanotubes to provide C and O including groups thereon which form ionic or covalent bonds to metal oxides, and processing a metal oxide photocatalyst sol-gel precursor in the presence of the nanotubes, wherein a nanoscale metal oxide photocatalyst layer becomes covalently or ionically bound to the nanotubes.
摘要翻译： 可用于破坏生物制剂的光催化剂纳米复合材料包括碳纳米管核心和与纳米管核心的表面共价或离子键合的光催化剂涂层。 涂层具有纳米级厚度。 形成光催化剂纳米复合材料的方法包括以下步骤：提供多个分散的碳纳米管，在产生表面官能化纳米管的条件下化学氧化纳米管，以提供C和O，其上包括与金属氧化物形成离子或共价键的基团，并处理 金属氧化物光催化剂溶胶 - 凝胶前体，其中纳米级金属氧化物光催化剂层与纳米管共价或离子结合。
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公开(公告)号：US07851056B2
公开(公告)日：2010-12-14
申请号：US11149006
申请日：2005-06-09
申请人： Wolfgang M. Sigmund , Joachim Spatz
发明人： Wolfgang M. Sigmund , Joachim Spatz
IPC分类号： B32B29/00
CPC分类号： B05D5/08 , B05D1/16 , B08B17/06 , B08B17/065 , B82Y30/00 , C03C17/007 , C03C2217/42 , Y10T428/249924 , Y10T428/249933 , Y10T428/24994 , Y10T428/249942 , Y10T428/2991 , Y10T428/31855
摘要： Ultralyophobe interfaces that are substantially inert to contaminants, thereby resulting in surfaces that are hydrophobic and/or lyophobic. The substrates include a substrate surface and have a bonding layer and a plurality of flexible fibers bound to the bonding layer. The flexible fibers have an elastic modulus and an aspect ratio, wherein as the elastic modulus of the fiber increases, the aspect ratio increases such that the flexible fibers bend upon contact of a liquid surface.
摘要翻译： 对于污染物基本上是惰性的超生物界面，从而导致疏水和/或疏液的表面。 基板包括基板表面，并且具有结合层和结合到结合层的多个柔性光纤。 柔性纤维具有弹性模量和长宽比，其中当纤维的弹性模量增加时，纵横比增加，使得柔性纤维在液体表面接触时弯曲。
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3.发明授权Ceramic nanofibers for liquid or gas filtration and other high temperature (> 1000° C.) applications 失效陶瓷纳米纤维用于液体或气体过滤等高温（> 1000℃）应用公开(公告)号：US08585795B2
公开(公告)日：2013-11-19
申请号：US12530703
申请日：2008-03-12
申请人： Wolfgang M. Sigmund , Vasana Maneeratana , Paolo Colombo , Chang-Yu Wu , Hyoungjun Park , Qi Zhang
发明人： Wolfgang M. Sigmund , Vasana Maneeratana , Paolo Colombo , Chang-Yu Wu , Hyoungjun Park , Qi Zhang
CPC分类号： B01D39/2086 , B01D2239/025 , B01D2239/0258 , B01D2239/0407 , B01D2239/065
摘要： In accordance with the invention there are devices and processes for making ceramic nanofiber mats and ceramic filters for use in high temperature and in corrosive environments. The process for forming a ceramic filter can include electrospinning a preceramic polymer solution into a preceramic polymer fiber having a diameter from about 10 nm to about 1 micron and forming a preceramic polymer fiber web from the preceramic polymer fiber onto a collector. The process can also include pyrolyzing the preceramic polymer fiber web to form a ceramic nanofiber mat having a diameter less than the diameter of the preceramic polymer fiber, the ceramic nanofiber mat comprising one or more of an oxide ceramic and a non-oxide ceramic such that the ceramic fiber mat can withstand temperature greater than about 1000 ° C.
摘要翻译： 根据本发明，存在用于制造用于高温和腐蚀性环境的陶瓷纳米纤维毡和陶瓷过滤器的装置和方法。 用于形成陶瓷过滤器的方法可以包括将预陶瓷聚合物溶液电纺丝成直径为约10nm至约1微米的预陶瓷聚合物纤维，并从预陶瓷聚合物纤维形成预收缩聚合物纤维网到收集器上。 该方法还可以包括热解预陶瓷聚合物纤维网以形成直径小于预陶瓷聚合物纤维的直径的陶瓷纳米纤维垫，陶瓷纳米纤维垫包含一种或多种氧化物陶瓷和非氧化物陶瓷，使得 陶瓷纤维毡可承受大于约1000℃的温度
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4.发明申请CERAMIC NANOFIBERS FOR LIQUID OR GAS FILTRATION AND OTHER HIGH TEMPERATURE (> 1000 °C) APPLICATIONS 失效用于液体或气体过滤和其他高温（> 1000°C）的陶瓷纳米纤维应用公开(公告)号：US20100139226A1
公开(公告)日：2010-06-10
申请号：US12530703
申请日：2008-03-12
申请人： Wolfgang M. Sigmund , Vasana Maneeratana , Paolo Colombo , Chang-Yu Wu , Hyoungjun Park , Qi Zhang
发明人： Wolfgang M. Sigmund , Vasana Maneeratana , Paolo Colombo , Chang-Yu Wu , Hyoungjun Park , Qi Zhang
CPC分类号： B01D39/2086 , B01D2239/025 , B01D2239/0258 , B01D2239/0407 , B01D2239/065
摘要： In accordance with the invention there are devices and processes for making ceramic nanofiber mats and ceramic filters for use in high temperature and in corrosive environments. The process for forming a ceramic filter can include electrospinning a preceramic polymer solution into a preceramic polymer fiber having a diameter from about 10 nm to about 1 micron and forming a preceramic polymer fiber web from the preceramic polymer fiber onto a collector. The process can also include pyrolyzing the preceramic polymer fiber web to form a ceramic nanofiber mat having a diameter less than the diameter of the preceramic polymer fiber, the ceramic nanofiber mat comprising one or more of an oxide ceramic and a non-oxide ceramic such that the ceramic fiber mat can withstand temperature greater than about 1000° C.
摘要翻译： 根据本发明，存在用于制造用于高温和腐蚀性环境的陶瓷纳米纤维毡和陶瓷过滤器的装置和方法。 用于形成陶瓷过滤器的方法可以包括将预陶瓷聚合物溶液电纺丝成直径为约10nm至约1微米的预陶瓷聚合物纤维，并从预陶瓷聚合物纤维形成预收缩聚合物纤维网到收集器上。 该方法还可以包括热解预陶瓷聚合物纤维网以形成直径小于预陶瓷聚合物纤维的直径的陶瓷纳米纤维垫，陶瓷纳米纤维垫包含一种或多种氧化物陶瓷和非氧化物陶瓷，使得 陶瓷纤维毡可承受大于约1000℃的温度
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5.发明授权Transparent inorganic-organic hybrid materials via aqueous sol-gel processing 有权透明无机 - 有机杂化材料通过水溶胶 - 凝胶加工公开(公告)号：US08728579B2
公开(公告)日：2014-05-20
申请号：US13126206
申请日：2009-09-11
IPC分类号： B05D1/00
CPC分类号： C09D183/02 , B82Y20/00 , B82Y30/00 , C08G77/14 , C08G77/58 , C08K3/32 , C08K3/36 , C08L83/00 , C09D183/04 , C09D183/06 , C09D183/14 , G02B1/105 , G02B1/14
摘要： A sol to form an inorganic-organic hybrid coating having a thick highly transparent hard coating is described. The hybrid coating is formed from a combined aqueous sol with least one hydrolyzable silane and at least one hydrolyzable metal oxide precursor where the only organic solvents present are those liberated upon hydrolysis of the silanes and metal oxide precursors. In one embodiment an inorganic-organic hybrid coating is formed by combination of a sol, prepared by the hydrolysis of tetraethoxysilane and γ-glycidoxypropyltrimethoxysilane with an excess of water, and a sol, prepared by the hydrolysis of titanium tetrabutoxide and γ-glycidoxypropyltrimethoxysilane with a deficiency of water. A plastic substrate can be coated with the combined sol and the combined sol gelled to a thickness of at least 5 μm with heating to less than 150° C.
摘要翻译： 描述了形成具有厚度高透明硬涂层的无机 - 有机复合涂层的溶胶。 混合涂层由具有至少一种可水解硅烷和至少一种可水解金属氧化物前体的组合水性溶胶形成，其中存在的唯一有机溶剂是在硅烷和金属氧化物前体水解时释放的那些。 在一个实施方案中，通过将四乙氧基硅烷和γ-环氧丙氧基丙基三甲氧基硅烷水解制备的溶胶与过量的水组合形成无机 - 有机杂化涂层，以及通过四丁氧基钛和γ-缩水甘油氧基丙基三甲氧基硅烷水解制备的溶胶， 缺水 可以用合并的溶胶涂覆塑料基材，并将合并的溶胶凝胶化至至少5μm的厚度，加热至小于150℃。
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公开(公告)号：US20120022199A1
公开(公告)日：2012-01-26
申请号：US13145709
申请日：2010-01-22
CPC分类号： D21H17/675 , C01F11/185 , D21H17/37 , D21H19/385 , D21H21/08
摘要： Water structure breakers are included with dispersants in high solids aqueous slurries to stabilize the aqueous solution structure over a long period of time. The incorporation of a dispersant and a water structure breaker effectively inhibits the viscosity increase typically associated with high solid slurries, such as ground calcium carbonate (GCC) slurries, The inclusion of a small amount of water structure breaker inhibits change in the solution structure over that of a typical slurry lacking the water structure breaker, allowing longer storage and distribution periods for such slurries.
摘要翻译： 在高固体含水浆料中的分散剂中包含水结构断裂剂，以在长时间内稳定水溶液结构。 分散剂和水结构破碎剂的结合有效地抑制了通常与高固体浆料相关的粘度增加，例如研磨的碳酸钙（GCC）浆料。包含少量的水结构破碎剂抑制了溶液结构的变化， 缺乏水结构破碎剂的典型浆料，允许这种浆料更长的储存和分配期。
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7.发明申请FAST RESPONSE NANOFIBER ARTICLES WITH TUNABLE WETTABILITY AND BULK PROPERTIES 审中-公开具有易挥发性和膨胀性的快速响应纳米纤维制品公开(公告)号：US20140213136A1
公开(公告)日：2014-07-31
申请号：US14240963
申请日：2012-08-23
IPC分类号： D04H1/728
CPC分类号： D04H1/728 , D01D5/0007 , D01F6/36 , D01F6/56 , D04H1/544 , Y10T442/615 , Y10T442/626
摘要： A fibrous properties-switching article comprises a mat consisting of fibers having a fiber diameter of 2 microns or less. The fibers comprise a polymer, copolymer, polymer blend, or polymer network, wherein the fibers have a diameter of 2 gm or less. The surface and/or bulk property of the mat changes over a range of temperatures, wherein the polymer, copolymer, polymer blend, or polymer network undergoes a structural change over the range of temperatures. The fiber mat is formed by electrospinning. In an exemplary embodiment, a blend of polystyrene and poly((N-isopropyl acrylamide) (b1-PS/PNIPA) in dimethylformamide (DMF) is electrospun to form a mat consisting of fibers with a diameter less than 2 μm that shows a transition from a superhydrophilic surface to a nearly superhydrophobic surface over a temperature range from 30° C. to 45° C. A fiber mat formed by electrospinning a DMF solution comprising poly(N-isopropyl acrylamide-co-methacylicacid) (PNIPAMAA), comprises fibers having a diameter less than 2 μm and are cross linked after spinning. The crosslinked PNIPAMAA, (x1-PNIPAMAA) fiber mat displays a transition from a hydrophilic surface to a nearly hydrophobic surface over a temperature range from 30° C. to 45° C.
摘要翻译： 纤维性质转换制品包括由纤维直径为2微米或更小的纤维组成的垫。 纤维包括聚合物，共聚物，聚合物共混物或聚合物网络，其中纤维的直径为2gm或更小。 垫的表面和/或体积特性在一定温度范围内变化，其中聚合物，共聚物，聚合物共混物或聚合物网络在温度范围内经历结构变化。 纤维毡通过静电纺丝形成。 在一个示例性实施方案中，将聚苯乙烯和聚（（N-异丙基丙烯酰胺）（b1-PS / PNIPA））在二甲基甲酰胺（DMF）中的共混物电纺丝以形成由直径小于2μm的纤维组成的垫，其显示出转变 在30℃至45℃的温度范围内从超亲水表面到几乎超疏水表面。通过静电纺丝包含聚（N-异丙基丙烯酰胺 - 共 - 甲酰丙酸）的DMF溶液（PNIPAMAA）形成的纤维垫包含纤维 直径小于2μm，并且在纺丝后交联。交联的PNIPAMAA（x1-PNIPAMAA）纤维垫在30℃至45℃的温度范围内显示从亲水表面到接近疏水表面的转变 。
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8.发明申请TRANSPARENT INORGANIC-ORGANIC HYBRID MATERIALS VIA AQUEOUS SOL-GEL PROCESSING 有权透明无机有机混合材料通过水溶胶凝胶处理公开(公告)号：US20110206831A1
公开(公告)日：2011-08-25
申请号：US13126206
申请日：2009-09-11
CPC分类号： C09D183/02 , B82Y20/00 , B82Y30/00 , C08G77/14 , C08G77/58 , C08K3/32 , C08K3/36 , C08L83/00 , C09D183/04 , C09D183/06 , C09D183/14 , G02B1/105 , G02B1/14
摘要： A sol to form an inorganic-organic hybrid coating having a thick highly transparent hard coating is described. The hybrid coating is formed from a combined aqueous sol with least one hydrolyzable silane and at least one hydrolyzable metal oxide precursor where the only organic solvents present are those liberated upon hydrolysis of the silanes and metal oxide precursors. In one embodiment an inorganic-organic hybrid coating is formed by combination of a sol, prepared by the hydrolysis of tetraethoxysilane and γ-glycidoxypropyltrimethoxysilane with an excess of water, and a sol, prepared by the hydrolysis of titanium tetrabutoxide and γ-glycidoxypropyltrimethoxysilane with a deficiency of water. A plastic substrate can be coated with the combined sol and the combined sol gelled to a thickness of at least 5 μm with heating to less than 150° C.
摘要翻译： 描述了形成具有厚度高透明硬涂层的无机 - 有机复合涂层的溶胶。 混合涂层由具有至少一种可水解硅烷和至少一种可水解金属氧化物前体的组合水性溶胶形成，其中存在的唯一有机溶剂是在硅烷和金属氧化物前体水解时释放的那些。 在一个实施方案中，通过将四乙氧基硅烷和γ-环氧丙氧基丙基三甲氧基硅烷水解制备的溶胶与过量的水组合形成无机 - 有机杂化涂层，以及通过四丁氧基钛和γ-缩水甘油氧基丙基三甲氧基硅烷水解制备的溶胶， 缺水 可以用合并的溶胶涂覆塑料基材，并将合并的溶胶凝胶化至至少5μm的厚度，加热至小于150℃。
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公开(公告)号：US09475105B2
公开(公告)日：2016-10-25
申请号：US13884059
申请日：2011-11-08
申请人： Wolfgang M. Sigmund , Shu-Hau Hsu
发明人： Wolfgang M. Sigmund , Shu-Hau Hsu
CPC分类号： B08B17/065 , B05D1/62 , B05D5/00 , B29C33/424 , B29C37/0053 , B29K2105/162 , C08J7/047 , C08J2427/12 , Y10T428/24355 , Y10T428/24372
摘要： A superhydrophobic and oleophobic thermoplastic article has a surface with a multiplicity of re-entrant structures extending from the article's surface where a conformal coating comprising a perfluoroalkane covers at least the distal portion of the re-entrant structures. The thermoplastic article can be prepared by contacting a heated thermoplastic and a mold with voids with a sufficient pressure to cause the thermoplastic to extend into the voids to form features that upon removal of the mold results in re-entrant structures. The surface having the re-entrant structures is conformally coated with a compound comprising a perfluoroalkane. Alternately microparticles or nanoparticles and a resin can be deposited on substrate and cured to adhere or mechanically fix the particles where a portion thereof forms re-entrant structures. The microparticles or nanoparticles can comprise a perfluoroalkane or can be conformally coated with a compound comprising a perfluoroalkane, to render the surface superhydrophobic and oleophobic.
摘要翻译： 超疏水性和疏油性热塑性制品具有从制品表面延伸的多个入口结构的表面，其中包含全氟烷烃的保形涂层至少覆盖重入结构的远端部分。 热塑性制品可以通过使加热的热塑性塑料和模具与足够压力的空隙接触来制备，以使热塑性材料延伸到空隙中，以形成在去除模具时导致重入结构的特征。 具有入口结构的表面共形地涂覆有包含全氟烷烃的化合物。 可替代地，微粒或纳米颗粒和树脂可以沉积在基底上并固化以粘附或机械地固定颗粒，其中其一部分形成重结构。 微粒或纳米颗粒可以包含全氟烷烃，或者可以共形地涂覆包含全氟烷烃的化合物，以使表面超疏水和疏油。
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公开(公告)号：US20130230695A1
公开(公告)日：2013-09-05
申请号：US13884059
申请日：2011-11-08
申请人： Wolfgang M. Sigmund , Shu-Hau Hsu
发明人： Wolfgang M. Sigmund , Shu-Hau Hsu
CPC分类号： B08B17/065 , B05D1/62 , B05D5/00 , B29C33/424 , B29C37/0053 , B29K2105/162 , C08J7/047 , C08J2427/12 , Y10T428/24355 , Y10T428/24372
摘要： A thermoplastic article has a surface with a multiplicity of re-entrant structures extending from the article's surface where a conformal coating comprising a perfluoroalkane covers at least the distal portion of the re-entrant structures to render the article superhydrophobic and oleophobic. A method to prepare the article having a superhydrophobic and oleophobic surface comprises contacting a heated thermoplastic and a mold with voids having at least one dimension of 100 nm to 10 μm with a sufficient pressure to cause the thermoplastic to extend into the voids to form features that upon removal of the mold from the thermoplastic article results in re-entrant structures having at least one dimension of 100 nm to 5 μm. The surface having the re-entrant structures is conformally coated with a compound comprising a perfluoroalkane. Another method to prepare the article having a superhydrophobic and oleophobic surface comprises deposition of microparticles or nanoparticles and a resin on a surface of a substrate and curing the resin such that the microparticles or nanoparticles are adhered or mechanically fixed to the substrate with a portion of the microparticles or nanoparticles extending from the surface to form re-entrant structures. The microparticles or nanoparticles can comprise a perfluoroalkane or can be conformally coated with a compound comprising a perfluoroalkane, to render the surface superhydrophobic and oleophobic.
摘要翻译： 热塑性制品具有从制品的表面延伸的多个重入结构的表面，其中包含全氟烷烃的保形涂层至少覆盖入口结构的远端部分以使制品超疏水和疏油。 制备具有超疏水和疏油表面的制品的方法包括使加热的热塑性塑料和模具具有至少一个尺寸为100nm至10μm的空隙，并具有足够的压力使热塑性塑料延伸到空隙中以形成特征， 当从热塑性制品中取出模具时，导致具有至少一个尺寸为100nm至5μm的尺寸的重入结构。 具有入口结构的表面共形地涂覆有包含全氟烷烃的化合物。 制备具有超疏水和疏油表面的制品的另一种方法包括将微粒或纳米颗粒和树脂沉积在基材的表面上并固化树脂，使得微粒或纳米颗粒被粘附或机械固定到基底上，其中一部分 微粒或纳米颗粒从表面延伸以形成重结构。 微粒或纳米颗粒可以包含全氟烷烃，或者可以共形地涂覆包含全氟烷烃的化合物，以使表面超疏水和疏油。
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