专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US09233850B2 Nano-scaled graphene plate films and articles 有权
标题翻译：纳米级石墨烯薄膜和制品
公开(公告)号：US09233850B2
公开(公告)日：2016-01-12
申请号：US11784606
申请日：2007-04-09
申请人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
发明人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
IPC分类号： H01B1/04 , C01B31/00 , C01B31/04 , B82Y30/00 , B82Y40/00 , C04B35/52
CPC分类号： C01B31/0423 , B82Y30/00 , B82Y40/00 , C01B32/182 , C01B32/19 , C01B32/194 , C01B32/196 , C01B32/225 , C01B32/23 , C01B2204/04 , C01B2204/22 , C01B2204/24 , C04B35/521 , C04B35/522 , H01B1/04
摘要： Disclosed is a nano-scaled graphene article comprising a non-woven aggregate of nano-scaled graphene platelets wherein each of the platelets comprises a graphene sheet or multiple graphene sheets and the platelets have a thickness no greater than 100 nm (preferably smaller than 10 nm) and platelets contact other platelets to define a plurality of conductive pathways along the article. The article has an exceptional thermal conductivity (typically greater than 500 Wm−1K−1) and excellent electrical conductivity (typically greater than 1,000 S/cm). Thin-film articles of the present invention can be used for thermal management in micro-electronic devices and for current-dissipating on an aircraft skin against lightning strikes.
摘要翻译：公开了一种纳米级石墨烯制品，其包含纳米级石墨烯片晶的无纺聚集体，其中每个血小板包含石墨烯片或多个石墨烯片，并且所述血小板具有不大于100nm（优选小于10nm））和血小板接触其他血小板以限定沿着物品的多个导电途径。该产品具有卓越的导热性（通常大于500 Wm-1K-1）和优异的导电性（通常大于1,000 S / cm）。本发明的薄膜制品可用于微电子装置中的热管理，并可用于飞机皮肤上的电流消散，以防雷击。

2. 发明授权

US08691129B2 Method of producing exfoliated graphite composite compositions for fuel cell flow field plates 有权
标题翻译：生产燃料电池流场板用剥离石墨复合材料组合物的方法
公开(公告)号：US08691129B2
公开(公告)日：2014-04-08
申请号：US11800730
申请日：2007-05-08
申请人： Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
IPC分类号： B29C43/00
CPC分类号： B22F1/0059 , B22F2998/10 , B22F3/02
摘要： A method of producing an electrically conductive composite composition, which is particularly useful for fuel cell bipolar plate applications. The method comprises: (a) providing a supply of expandable graphite powder; (b) providing a supply of a non-expandable powder component comprising a binder or matrix material; (c) blending the expandable graphite with the non-expandable powder component to form a powder mixture wherein the non-expandable powder component is in the amount of between 3% and 60% by weight based on the total weight of the powder mixture; (d) exposing the powder mixture to a temperature sufficient for exfoliating the expandable graphite to obtain a compressible mixture comprising expanded graphite worms and the non-expandable component; (e) compressing the compressible mixture at a pressure within the range of from about 5 psi to about 50,000 psi in predetermined directions into predetermined forms of cohered graphite composite compact; and (f) treating the so-formed cohered graphite composite to activate the binder or matrix material thereby promoting adhesion within the compact to produce the desired composite composition. Preferably, the non-expandable powder component further comprises an isotropy-promoting agent such as non-expandable graphite particles. Further preferably, step (e) comprises compressing the mixture in at least two directions. The method leads to composite plates with exceptionally high thickness-direction electrical conductivity.
摘要翻译：一种制造导电复合材料组合物的方法，其特别适用于燃料电池双极板应用。该方法包括：（a）提供可膨胀石墨粉的供应; （b）提供包含粘合剂或基质材料的不可膨胀粉末组分的供应; （c）将可膨胀石墨与不可发泡粉末组分混合以形成粉末混合物，其中基于粉末混合物的总重量，不可发泡粉末组分的量为3重量％至60重量％; （d）将粉末混合物暴露于足以剥离可膨胀石墨的温度以获得包含膨胀石墨蠕虫和不可膨胀组分的可压缩混合物; （e）在预定方向上以约5psi至约50,000psi范围内的压力将可压缩混合物压缩成预定形式的粘结石墨复合材料; 和（f）处理如此形成的粘结石墨复合材料以活化粘合剂或基质材料，从而促进压块内的粘合以产生所需的复合组合物。优选地，不可膨胀粉末组分还包含各向同性促进剂，例如不可膨胀石墨颗粒。进一步优选地，步骤（e）包括在至少两个方向压缩混合物。该方法导致具有非常高的厚度方向电导率的复合板。

3. 发明授权

US07824651B2 Method of producing exfoliated graphite, flexible graphite, and nano-scaled graphene platelets 有权
标题翻译：生产剥离石墨，柔性石墨和纳米级石墨烯血小板的方法
公开(公告)号：US07824651B2
公开(公告)日：2010-11-02
申请号：US11800728
申请日：2007-05-08
申请人： Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
IPC分类号： C01B31/04
CPC分类号： C01B32/225
摘要： The present invention provides a method of exfoliating a layered material (e.g., graphite and graphite oxide) to produce nano-scaled platelets having a thickness smaller than 100 nm, typically smaller than 10 nm. The method comprises (a) dispersing particles of graphite, graphite oxide, or a non-graphite laminar compound in a liquid medium containing therein a surfactant or dispersing agent to obtain a stable suspension or slurry; and (b) exposing the suspension or slurry to ultrasonic waves at an energy level for a sufficient length of time to produce separated nano-scaled platelets. The nano-scaled platelets are candidate reinforcement fillers for polymer nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.
摘要翻译：本发明提供一种剥离层状材料（例如石墨和氧化石墨）以产生厚度小于100nm，通常小于10nm的纳米级片晶的方法。该方法包括（a）将石墨，氧化石墨或非石墨层状化合物的颗粒分散在其中含有表面活性剂或分散剂的液体介质中以获得稳定的悬浮液或浆料; 和（b）将悬浮液或浆料以能量水平暴露于超声波足够长的时间以产生分离的纳米级血小板。纳米级血小板是聚合物纳米复合材料的候选增强填料。纳米级石墨烯血小板是碳纳米管或碳纳米纤维成本低廉的替代品。

4. 发明申请

US20090169467A1 Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads 有权
标题翻译：从中碳微珠生产超薄纳米级石墨烯血小板
公开(公告)号：US20090169467A1
公开(公告)日：2009-07-02
申请号：US12005015
申请日：2007-12-26
申请人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
IPC分类号： C01B31/04
CPC分类号： C01B31/0469 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/22 , C01B2204/04 , C01B2204/32 , C01P2004/03 , C01P2004/32 , C01P2006/12 , C09C1/44 , C09C1/46 , C09C1/565
摘要： A method of producing nano-scaled graphene platelets (NGPs) having an average thickness no greater than 50 nm, typically less than 2 nm, and, in many cases, no greater than 1 nm. The method comprises (a) intercalating a supply of meso-carbon microbeads (MCMBs) to produce intercalated MCMBs; and (b) exfoliating the intercalated MCMBs at a temperature and a pressure for a sufficient period of time to produce the desired NGPs. Optionally, the exfoliated product may be subjected to a mechanical shearing treatment, such as air milling, air jet milling, ball milling, pressurized fluid milling, rotating-blade grinding, or ultrasonicating. The NGPs are excellent reinforcement fillers for a range of matrix materials to produce nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.
摘要翻译：制备平均厚度不超过50nm，通常小于2nm，并且在许多情况下不大于1nm的纳米级石墨烯片晶（NGP）的方法。该方法包括：（a）插入供应的中碳微珠（MCMB）以产生嵌入的MCMB; 和（b）在温度和压力下将嵌入的MCMBs剥离足够的时间以产生所需的NGP。任选地，剥离的产品可以经受机械剪切处理，例如空气研磨，空气喷射研磨，球磨，加压流体研磨，旋转叶片研磨或超声波处理。 NGP是用于生产纳米复合材料的一系列基质材料的优良增强填料。纳米级石墨烯血小板是碳纳米管或碳纳米纤维成本低廉的替代品。

5. 发明申请

US20090155578A1 Nano-scaled graphene platelets with a high length-to-width aspect ratio 有权
标题翻译：具有高长宽比长度的纳米级石墨烯血小板
公开(公告)号：US20090155578A1
公开(公告)日：2009-06-18
申请号：US12002278
申请日：2007-12-17
申请人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
IPC分类号： C01B31/02 , B32B9/00
CPC分类号： C25B1/00 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/22 , C01B2204/04 , C01P2004/24 , H05K9/009 , Y10S977/734 , Y10S977/762 , Y10S977/773 , Y10T428/265 , Y10T428/2982
摘要： This invention provides a nano-scaled graphene platelet (NGP) having a thickness no greater than 100 nm and a length-to-width ratio no less than 3 (preferably greater than 10). The NGP with a high length-to-width ratio can be prepared by using a method comprising (a) intercalating a carbon fiber or graphite fiber with an intercalate to form an intercalated fiber; (b) exfoliating the intercalated fiber to obtain an exfoliated fiber comprising graphene sheets or flakes; and (c) separating the graphene sheets or flakes to obtain nano-scaled graphene platelets. The invention also provides a nanocomposite material comprising an NGP with a high length-to-width ratio. Such a nanocomposite can become electrically conductive with a small weight fraction of NGPs. Conductive composites are particularly useful for shielding of sensitive electronic equipment against electromagnetic interference (EMI) or radio frequency interference (RFI), and for electrostatic charge dissipation.
摘要翻译：本发明提供具有不大于100nm厚度且长度与宽度之比不小于3（优选大于10）的纳米级石墨烯片（NGP）。具有高长宽比的NGP可以通过使用以下方法制备：（a）将碳纤维或石墨纤维插入插层以形成插层纤维; （b）剥离插层的纤维以获得包含石墨烯片或薄片的剥离纤维; 和（c）分离石墨烯片或薄片以获得纳米级石墨烯血小板。本发明还提供了纳米复合材料，其包括具有高长宽比的NGP。这种纳米复合材料可以用小的重量份数的NGP导电。导电复合材料特别适用于屏蔽电磁干扰（EMI）或射频干扰（RFI）以及静电电荷耗散的敏感电子设备。

6. 发明申请

US20080020193A1 Hybrid fiber tows containning both nano-fillers and continuous fibers, hybrid composites, and their production processes 审中-公开
标题翻译：混合纤维束包含纳米填料和连续纤维，混合复合材料及其生产工艺
公开(公告)号：US20080020193A1
公开(公告)日：2008-01-24
申请号：US11491657
申请日：2006-07-24
申请人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo , Lulu Song
发明人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo , Lulu Song
IPC分类号： D04H13/00
CPC分类号： D02J1/18 , B29B15/12 , B29B15/125 , B29C70/025 , B29C70/20 , B29K2105/162 , D04C1/12 , D04H3/04 , D04H3/12 , D06B1/04 , Y10T428/249924
摘要： Disclosed is a hybrid fiber tow that comprises multiple continuous filaments and nanoscale fillers embedded in the interstitial spaces between continuous filaments. Nanoscale fillers may be selected from a nanoscale graphene plate, non-graphite platelet, carbon nano-tube, nano-rod, carbon nano-fiber, non-carbon nano-fiber, or a combination thereof. Also disclosed are a hybrid fiber tow impregnated with a matrix material and a composite structure fabricated from a hybrid fiber tow. The composite exhibits improved physical properties (e.g., thermal conductivity) in a direction transverse to the continuous fiber axis. A roll-to-roll process for producing a continuous fiber tow or matrix-impregnated fiber tow and an automated process for producing composite structures containing both continuous filaments and nanoscale fillers are also provided.
摘要翻译：公开了一种混合纤维束，其包含多个连续长丝和嵌入连续长丝之间的间隙中的纳米级填料。纳米级填料可以选自纳米级石墨烯板，非石墨片，碳纳米管，纳米棒，碳纳米纤维，非碳纳米纤维或其组合。还公开了浸渍有基质材料和由混合纤维丝束制成的复合结构的混合纤维丝束。该复合材料在横向于连续纤维轴线的方向上显示出改进的物理性能（例如导热性）。还提供了用于生产连续纤维丝束或基体浸渍纤维丝束的卷对卷方法和用于生产包含连续长丝和纳米级填料的复合结构的自动化方法。

7. 发明授权

US08883114B2 Production of ultra-thin nano-scaled graphene platelets from meso-carbon micro-beads 有权
标题翻译：从中碳微珠生产超薄纳米级石墨烯血小板
公开(公告)号：US08883114B2
公开(公告)日：2014-11-11
申请号：US12005015
申请日：2007-12-26
申请人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
IPC分类号： C01B31/04 , C09C1/56 , B82Y30/00 , B82Y40/00 , C09C1/44 , C09C1/46
CPC分类号： C01B31/0469 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/22 , C01B2204/04 , C01B2204/32 , C01P2004/03 , C01P2004/32 , C01P2006/12 , C09C1/44 , C09C1/46 , C09C1/565
摘要： A method of producing nano-scaled graphene platelets (NGPs) having an average thickness no greater than 50 nm, typically less than 2 nm, and, in many cases, no greater than 1 nm. The method comprises (a) intercalating a supply of meso-carbon microbeads (MCMBs) to produce intercalated MCMBs; and (b) exfoliating the intercalated MCMBs at a temperature and a pressure for a sufficient period of time to produce the desired NGPs. Optionally, the exfoliated product may be subjected to a mechanical shearing treatment, such as air milling, air jet milling, ball milling, pressurized fluid milling, rotating-blade grinding, or ultrasonicating. The NGPs are excellent reinforcement fillers for a range of matrix materials to produce nanocomposites. Nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers.
摘要翻译：制备平均厚度不超过50nm，典型地小于2nm，并且在许多情况下不大于1nm的纳米级石墨烯平板（NGP）的方法。该方法包括（a）嵌入一定量的中碳微珠（MCMBs）以产生插层的MCMBs; 和（b）在温度和压力下将嵌入的MCMBs剥离足够的时间以产生所需的NGP。任选地，剥离的产品可以进行机械剪切处理，例如空气研磨，喷气研磨，球磨，加压流体研磨，旋转叶片研磨或超声波处理。 NGP是用于生产纳米复合材料的一系列基质材料的优良增强填料。纳米级石墨烯血小板是碳纳米管或碳纳米纤维成本更低的替代品。

8. 发明授权

US07790285B2 Nano-scaled graphene platelets with a high length-to-width aspect ratio 有权
标题翻译：具有高长宽比长度的纳米级石墨烯血小板
公开(公告)号：US07790285B2
公开(公告)日：2010-09-07
申请号：US12002278
申请日：2007-12-17
申请人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jiusheng Guo , Bor Z. Jang
IPC分类号： B32B5/16
CPC分类号： C25B1/00 , B82Y30/00 , B82Y40/00 , C01B32/19 , C01B32/22 , C01B2204/04 , C01P2004/24 , H05K9/009 , Y10S977/734 , Y10S977/762 , Y10S977/773 , Y10T428/265 , Y10T428/2982
摘要： This invention provides a nano-scaled graphene platelet (NGP) having a thickness no greater than 100 nm and a length-to-width ratio no less than 3 (preferably greater than 10). The NGP with a high length-to-width ratio can be prepared by using a method comprising (a) intercalating a carbon fiber or graphite fiber with an intercalate to form an intercalated fiber; (b) exfoliating the intercalated fiber to obtain an exfoliated fiber comprising graphene sheets or flakes; and (c) separating the graphene sheets or flakes to obtain nano-scaled graphene platelets. The invention also provides a nanocomposite material comprising an NGP with a high length-to-width ratio. Such a nanocomposite can become electrically conductive with a small weight fraction of NGPs. Conductive composites are particularly useful for shielding of sensitive electronic equipment against electromagnetic interference (EMI) or radio frequency interference (RFI), and for electrostatic charge dissipation.
摘要翻译：本发明提供具有不大于100nm厚度且长度与宽度之比不小于3（优选大于10）的纳米级石墨烯片（NGP）。具有高长宽比的NGP可以通过使用以下方法制备：（a）将碳纤维或石墨纤维插入插层以形成插层纤维; （b）剥离插层的纤维以获得包含石墨烯片或薄片的剥离纤维; 和（c）分离石墨烯片或薄片以获得纳米级石墨烯血小板。本发明还提供了纳米复合材料，其包括具有高长宽比的NGP。这种纳米复合材料可以用小的重量份数的NGP导电。导电复合材料特别适用于屏蔽电磁干扰（EMI）或射频干扰（RFI）以及静电电荷耗散的敏感电子设备。

9. 发明申请

US20090061191A1 Recompressed exfoliated graphite articles 有权
标题翻译：再压缩剥离石墨制品
公开(公告)号：US20090061191A1
公开(公告)日：2009-03-05
申请号：US11899009
申请日：2007-09-04
申请人： Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
发明人： Aruna Zhamu , Jinjun Shi , Jiusheng Guo , Bor Z. Jang
IPC分类号： B32B9/00 , H01B1/04 , H01B1/06
CPC分类号： H01B1/04
摘要： This invention provides an electrically conductive, less anisotropic, recompressed exfoliated graphite article comprising a mixture of (a) expanded or exfoliated graphite flakes; and (b) particles of non-expandable graphite or carbon, wherein the non-expandable graphite or carbon particles are in the amount of between about 3% and about 70% by weight based on the total weight of the particles and the expanded graphite flakes combined; wherein the mixture is compressed to form the article having an apparent bulk density of from about 0.1 g/cm3 to about 2.0 g/cm3. The article exhibits a thickness-direction conductivity typically greater than 50 S/cm, more typically greater than 100 S/cm, and most typically greater than 200 S/cm. The article, when used in a thin foil or sheet form, can be a useful component in a sheet molding compound plate used as a fuel cell separator or flow field plate. The article may also be used as a current collector for a battery, supercapacitor, or any other electrochemical cell.
摘要翻译：本发明提供一种导电性较小的各向异性的再压缩剥离石墨制品，其包含（a）膨胀或剥落的石墨薄片的混合物; 和（b）不可膨胀石墨或碳的颗粒，其中基于颗粒和膨胀石墨薄片的总重量，不可膨胀石墨或碳颗粒的量为约3重量％至约70重量％结合其中将该混合物压缩以形成具有约0.1g / cm 3至约2.0g / cm 3的表观松密度的制品。该制品的厚度方向导电率通常大于50S / cm，更典型地大于100S / cm，最典型地大于200S / cm。当以薄箔或片状形式使用时，该制品可以是用作燃料电池隔板或流场板的片状模塑复合板中的有用组件。该物品也可以用作电池，超级电容器或任何其它电化学电池的集电器。

10. 发明申请

US20080248275A1 Nano-scaled graphene plate films and articles 有权
标题翻译：纳米级石墨烯薄膜和制品
公开(公告)号：US20080248275A1
公开(公告)日：2008-10-09
申请号：US11784606
申请日：2007-04-09
申请人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
发明人： Bor Z. Jang , Aruna Zhamu , Jiusheng Guo
IPC分类号： H01B1/04 , C01B31/00
CPC分类号： C01B31/0423 , B82Y30/00 , B82Y40/00 , C01B32/182 , C01B32/19 , C01B32/194 , C01B32/196 , C01B32/225 , C01B32/23 , C01B2204/04 , C01B2204/22 , C01B2204/24 , C04B35/521 , C04B35/522 , H01B1/04
摘要： Disclosed is a nano-scaled graphene article comprising a non-woven aggregate of nano-scaled graphene platelets wherein each of the platelets comprises a graphene sheet or multiple graphene sheets and the platelets have a thickness no greater than 100 nm (preferably smaller than 10 nm) and platelets contact other platelets to define a plurality of conductive pathways along the article. The article has an exceptional thermal conductivity (typically greater than 500 Wm−1K−1) and excellent electrical conductivity (typically greater than 1,000 S/cm). Thin-film articles of the present invention can be used for thermal management in micro-electronic devices and for current-dissipating on an aircraft skin against lightning strikes.
摘要翻译：公开了一种纳米级石墨烯制品，其包含纳米级石墨烯片晶的无纺聚集体，其中每个血小板包含石墨烯片或多个石墨烯片，并且所述血小板具有不大于100nm（优选小于10nm））和血小板接触其他血小板以限定沿着物品的多个导电途径。该物品具有优异的导热性（通常大于500Wm -1），优异的导电性（通常大于1,000S / cm）。本发明的薄膜制品可用于微电子装置中的热管理，并可用于飞机皮肤上的电流消散，以防雷击。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式