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公开(公告)号：KR1020110097427A
公开(公告)日：2011-08-31
申请号：KR1020100017265
申请日：2010-02-25
Applicant: 서울대학교산학협력단
IPC: C09K3/00 , C10M125/26
Abstract: 본 발명은 실리카-이산화티타늄 중공구조 나노입자를 포함한 전기유변유체의 제조방법에 관한 것으로, 유전상수가 높은 이산화티타늄을 역평행패어링 효과를 감소시키고, 전기장에 반응하는 계면을 증가시키기 위하여 실리카와 혼합하여 중공구조 입자의 외부벽을 이루게 한 실리카-이산화티타늄 중공구조 나노입자를 절연유체에 도입한 후, 분산시켜 전기유변현상이 효율적으로 나타나는 실리카-이산화티타늄 중공구조 나노입자를 포함한 전기유변유체를 제조하는 방법을 제공한다.
본 발명에 따르면, 실리카-이산화티타늄 중공구조 나노입자가 이산화티타늄과 실리카가 혼합된 외부벽을 가지고, 이로 인하여 많은 이산화티타늄과 실리카의 계면을 가지며, 상기 계면이 전기유변유체에 있어서 저해요소인 역평행패어링 효과를 감소시키고 분극성능을 향상시킴으로써, 높은 항복응력을 가지는 전기유변유체를 용이하게 제조할 수 있는 장점을 가진다. 더욱이, 본 발명에서 제조될 수 있는 실리카-이산화티타늄 중공구조 나노입자를 포함한 전기유변유체는 중공구조 나노입자의 함량, 나노입자의 크기, 이산화티타늄의 도입량에 따라서 항복응력의 용이한 조절이 가능하다.-
公开(公告)号：KR1020110093203A
公开(公告)日：2011-08-18
申请号：KR1020100013101
申请日：2010-02-12
Applicant: 서울대학교산학협력단
IPC: C10M125/26 , C10M171/00 , B82B3/00
CPC classification number: C10M171/001 , B82B3/00 , C10M125/10 , C10M125/26
Abstract: PURPOSE: A producing method of electro rheological fluid containing silica/titania core-shell nanoparticles is provided to mass-produce the electro rheological fluid with simple producing processes. CONSTITUTION: A producing method of electro rheological fluid containing silica/titania core-shell nanoparticles comprises the following steps: drying the silica/titania core-shell nanoparticles using a vacuum oven; inserting the dried silica/titania core-shell nanoparticles into insulating fluid; and dispersing the silica/titania core-shell nanoparticles in the insulating fluid.
Abstract translation: 目的：提供含有二氧化硅/二氧化钛核壳纳米颗粒的电流变液的生产方法，以简单的生产工艺大量生产电流变液。 构成：含有二氧化硅/二氧化钛核壳纳米粒子的电流变液的制备方法包括以下步骤：使用真空烘箱干燥二氧化硅/二氧化钛核 - 壳纳米颗粒; 将干燥的二氧化硅/二氧化钛核 - 壳纳米颗粒插入绝缘流体中; 并将二氧化硅/二氧化钛核 - 壳纳米颗粒分散在绝缘流体中。
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公开(公告)号：KR1020110065600A
公开(公告)日：2011-06-16
申请号：KR1020090122163
申请日：2009-12-10
Applicant: 서울대학교산학협력단
CPC classification number: H01B3/20 , B01J19/10 , B82Y40/00 , C01B33/12 , C01B33/14 , C01P2004/64 , H01B1/14
Abstract: PURPOSE: A producing method of silica/titanium dioxide nanotube, and the application of the silica/titanium dioxide nanotube to electrorheological fluid are provided to economically produce the silica/titanium dioxide nanotube. CONSTITUTION: A producing method of silica/titanium dioxide nanotube comprises the following steps: dispersing silica nanotubes inside an ethanol and acetonitrile mixture solution; adding an ammonia solution into the silica nanotube dispersed solution, for applying ammonium positive ions to the surface of the silica nanotubes; inserting a titanium dioxide precursor into the silica nanotube dispersed solution for performing an interface sol-gel reaction on the surface of the silica nanotubes; and dispersing the obtained silica/titanium dioxide nanotube in silicon fluid for obtaining electrorheological fluid.
Abstract translation: 目的：提供二氧化硅/二氧化钛纳米管的制备方法以及将二氧化硅/二氧化钛纳米管应用于电流变流体以经济地生产二氧化硅/二氧化钛纳米管。 构成：二氧化硅/二氧化钛纳米管的制备方法包括以下步骤：将二氧化硅纳米管分散在乙醇和乙腈混合溶液中; 向二氧化硅纳米管分散溶液中加入氨溶液，将铵正离子施加到二氧化硅纳米管的表面; 将二氧化钛前体插入到二氧化硅纳米管分散溶液中，以在二氧化硅纳米管的表面上进行界面溶胶 - 凝胶反应; 并将得到的二氧化硅/二氧化钛纳米管分散在硅液中，得到电流变流体。
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Patent Agency Ranking14.发明公开폴리(3,4-에틸렌다이옥시싸이오펜) 나노튜브를 이용한 분산안정성 및 재분산성이 향상된 나노전기유변유체의 제조방법 无效具有超级分散稳定性和使用聚（3,4-乙烯二氧基苯乙烯纳米粒子的可重复性）的电动流体的制备方法
公开(公告)号：KR1020100078569A
公开(公告)日：2010-07-08
申请号：KR1020080136867
申请日：2008-12-30
Applicant: 서울대학교산학협력단
CPC classification number: C10M171/001 , B82Y40/00
Abstract: PURPOSE: A producing method of nano electro rheological fluid is provided to use an oil-soluble surfactant to improve the dispersion stability of the nano electro rheological fluid, and to secure the electro-rheological property of the fluid by the content of nanoparticles. CONSTITUTION: A producing method of nano electro rheological fluid comprises the following steps: controlling the electrical property of a poly(3,4-ethylenedioxythiophene) nanotube by dedoping; forming the nano electro rheological fluid by dispersing the dedoped poly(3,4-ethylenedioxythiophene) nanotube an oil-soluble surfactant to silicon fluid; considering the electro-rheological property of the nano electro rheological fluid using a rheometer connected with a DC power supply; and considering the dispersion stability of the nano electro rheological fluid by calculating the sedimentation rate by the time.
Abstract translation: 目的：提供纳米电流变流体的制备方法，使用油溶性表面活性剂来改善纳米电流变流体的分散稳定性，并通过纳米粒子的含量确保流体的电流变性能。 构成：纳米电流变流体的制备方法包括以下步骤：通过去掺杂来控制聚（3,4-亚乙基二氧噻吩）纳米管的电性能; 通过将去掺杂的聚（3,4-亚乙基二氧噻吩）纳米管分散在油溶性表面活性剂中形成纳米电流变流体; 考虑使用与直流电源连接的流变仪的纳米电流变流体的电流变特性; 并考虑到纳米电流变流体的分散稳定性，计算出当时的沉降速率。
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公开(公告)号：KR1020100059104A
公开(公告)日：2010-06-04
申请号：KR1020080117755
申请日：2008-11-25
Applicant: 서울대학교산학협력단
Abstract: PURPOSE: A fabrication method of electrorheological fluids using poly(3,4-ethylenedioxythiophene) nanomaterials is provided to easily introduce conductive poly(3,4-ethylenedioxythiophene) nanotubes to nanoelectrorheological fluids by simply controlling conductivity. CONSTITUTION: A fabrication method and measurement method of nanoelectrorheological fluids comprise the following steps: controlling electrical properties through a dedoping process of poly(3,4-ethylenedioxythiophene) nanotubes; fabricating the nanoelectrorheological fluids by dispersing the poly(3,4-ethylenedioxythiophene) nanotubes in silicon fluid using various dispersion methods; and considering the content of various nanoparticles and electrorheological properties in an external electric field using a rheometer which is connected to a DC power supplying device.
Abstract translation: 目的：提供使用聚（3,4-亚乙基二氧噻吩）纳米材料的电流变流体的制造方法，通过简单地控制电导率，容易地将导电聚（3,4-亚乙基二氧噻吩）纳米管引入纳米电流变流体。 构成：纳米电流体流体的制造方法和测量方法包括以下步骤：通过聚（3,4-亚乙基二氧噻吩）纳米管的去掺杂工艺控制电性能; 通过使用各种分散方法将聚（3,4-亚乙基二氧噻吩）纳米管分散在硅液中制造纳米电流体流体; 并且使用连接到DC供电装置的流变仪考虑外部电场中的各种纳米颗粒的含量和电流变性质。
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公开(公告)号：KR1020130033211A
公开(公告)日：2013-04-03
申请号：KR1020110097157
申请日：2011-09-26
Applicant: 서울대학교산학협력단
Abstract: PURPOSE: A graphene sheet using inkjet printing and a wideband dipole antenna application are provided to minimize the loss of raw material and time. CONSTITUTION: Waterborne graphene oxide nano particle solution is manufactured and is used for conductive ink of inkjet printing. The chemical characteristic of the waterborne graphene oxide nano particle solution is changed in order to form a detailed pattern on a supporting material. The waterborne graphene oxide nano particle solution is injected to a printer head, and an oxide graphene thin film is formed. The supporting material including the oxide graphene thin film is located in a vapor deposition reactor, and an oxidation-reduction reaction is executed. A graphene sheet based broadband dipole antenna electrode is connected to an antenna analysis device, and the performance of the antenna is measured.
Abstract translation: 目的：提供使用喷墨印刷和宽带偶极天线应用的石墨烯片，以最大限度地减少原材料和时间的损失。 构成：制造水性石墨烯氧化物纳米颗粒溶液，用于喷墨印刷的导电油墨。 改变水性石墨烯氧化物纳米颗粒溶液的化学特性，以便在支撑材料上形成详细图案。 将水性氧化石墨烯氧化物纳米颗粒溶液注入到打印头中，形成氧化石墨烯薄膜。 包含氧化石墨烯薄膜的支撑材料位于气相沉积反应器中，并进行氧化还原反应。 将基于石墨烯片的宽带偶极天线电极连接到天线分析装置，并测量天线的性能。
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公开(公告)号：KR101157382B1
公开(公告)日：2012-06-20
申请号：KR1020090131037
申请日：2009-12-24
Applicant: 서울대학교산학협력단
Abstract: PURPOSE: A manufacturing method of magnetic carbon nanoparticle including nitrogen is provided to manufacture magnetic carbon nanoparticle with high portion of nitrogen by using a carbonization process at a specific temperature range. CONSTITUTION: The manufacturing method of magnetic carbon nanoparticle including nitrogen includes following steps. (A) A spherical polymer nanoparticle is manufactured from a polymer monomer containing nitrogen by using a micro-emulsion polymerization.(B) The sphere polymer nanoparticle is divided from reactant, dried and collected.(C) After a charring process, the magnetic carbon nanoparticle including nitrogen is manufactured from the dried sphere polymer nanoparticle. The polymer monomer contains nitrogen and is polypyrrole, polyaniline, and polyacrylonitrile or polyrhodanine. The temperature of the charring process is 500-1000°C.
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公开(公告)号：KR1020100072402A
公开(公告)日：2010-07-01
申请号：KR1020080130805
申请日：2008-12-22
Applicant: 서울대학교산학협력단
CPC classification number: H01B3/22 , C08G73/0611 , G01N2011/0066
Abstract: PURPOSE: A method for fabricating and measuring nano-electrorheological fluids are provided to easily introduce conductive polypyrrole nanotube into the nano-electrorheological fluid by simply controlling conductivity and to confirm the content of nanoparticles and electrorheological properties according to the intensity of electric field. CONSTITUTION: A method for fabricating and measuring nano-electrorheological fluids comprises the following steps: controlling electrical properties through a dedoping process of polypyrrole nanotube; fabricating the nano-electrorheological fluids by dispersing the polypyrrole nanotube into a silicone fluid; and observing electrorheological properties in external magnetic field and the content of various nanoparticles using a rheometer which is connected to a DC power supply.
Abstract translation: 目的：提供一种纳米电流变流体的制造和测量方法，通过简单的控制电导率，根据电场强度确定纳米粒子的含量和电流变特性，便可将导电聚吡咯纳米管引入纳米电流变流体。 构成：纳米电流变流体的制造和测量方法包括以下步骤：通过聚吡咯纳米管的去掺杂工艺控制电性能; 通过将聚吡咯纳米管分散到硅氧烷流体中来制造纳米电流变流体; 并使用连接到直流电源的流变仪观察外部磁场中的电流变特性和各种纳米粒子的含量。
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