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公开(公告)号：US20200271445A1
公开(公告)日：2020-08-27
申请号：US16461961
申请日：2017-11-17
Inventor： Jian ZHOU , Xuezhu XU , Gilles LUBINEAU
Abstract: Embodiments of the present disclosure describe a sensor comprising a substrate, one or more fragmented carbon nanotube compositions embedded in the substrate, wherein the carbon nanotube compositions include one or more carbon nanotubes, and one or more conductive devices affixed to one or more sides of the fragmented carbon nanotube compositions with an affixation agent. Embodiments of the present disclosure further describe a method of fabricating a sensor comprising embedding a carbon nanotube composition in a substrate, wherein the carbon nanotube composition includes one or more carbon nanotubes, and fragmenting the carbon nanotube composition.
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公开(公告)号：US20190072510A1
公开(公告)日：2019-03-07
申请号：US16078101
申请日：2017-03-02
Inventor： Yanlong TAI , Gilles LUBINEAU
Abstract: A humidity nonsensitive material based on reduced-graphene oxide (r-GO) and methods of making the same are provided, in an embodiment, the materia! has a resistance/humidity variation of about −15% to 15% based on different sintering time or temperature. In an aspect, the resistance variation to humidity can be close to zero or −0.5% to 0.5%, showing a humidity non sensitivity property. In an embodiment, a humidity nonsensitive material based on the r-GO and carbon nanotube (CNT) composites is provided, wherein the ratio of CNT to r-GO is adjusted. The ratio can be adjusted based on the combined contribution of carbon nanotube (positive resistance variation) and reduced-graphene oxide (negative resistance variation) behaviors.
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3.发明公开公开(公告)号：US20240272021A1
公开(公告)日：2024-08-15
申请号：US18565196
申请日：2022-06-17
Inventor： Hussein NESSER , Gilles LUBINEAU
IPC: G01L1/14
CPC classification number: G01L1/146
Abstract: A strain characterization system includes a strain sensor having first and second electrodes that sandwich a dielectric layer to form a capacitor; a power source configured to inject a signal VAC between the first and second electrodes of the strain sensor; and a controller configured to control the power source and to select a frequency of the power source. The controller is configured to select first to third different frequencies for determining a strain magnitude, a strain location, and an extent of a strain area.
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公开(公告)号：US20210047753A1
公开(公告)日：2021-02-18
申请号：US16760669
申请日：2018-10-10
Inventor： Jian ZHOU , Xuezhu XU , Gilles LUBINEAU
Abstract: A method for making a copolymer-wrapped nanotube coaxial fiber. The method includes supplying a first dope to a spinning nozzle; supplying a second dope to the spinning nozzle; spinning the first and second dopes as a coaxial fiber into a first wet bath; and placing the coaxial fiber into a second wet bath, which is different from the first bath. The coaxial fiber has a core including parts of the first dope and a sheath including parts of the second dope. Solvent molecules of the second wet bath penetrate the sheath and remove an acid from the core.
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公开(公告)号：US20230241843A1
公开(公告)日：2023-08-03
申请号：US18009870
申请日：2021-06-16
Inventor： Ahmed WAGIH , Gilles LUBINEAU
Abstract: An adhesive-based joint includes a first adherend, a second adherend, an adhesive layer located between the first adherend and the second adherend, and plural strip parts of a low adhesive material embedded into the adhesive layer. The low adhesive material has an adhesion with the adhesive layer lower than an adhesion between the first or second adherend and the adhesive layer.
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Patent Agency Ranking
公开(公告)号：US20220341403A1
公开(公告)日：2022-10-27
申请号：US17620808
申请日：2020-06-24
Inventor： Ragesh CHELLATTOAN , Gilles LUBINEAU , Arief YUDHANTO
Abstract: A heating element includes first and second blocks made of microfibers of steel, each block having an electrical input and an electrical output, and an electrical connection that connects an electrical output of the first block to an electrical input of the second block. The microfibers have a diameter between 10 and 30 micrometers.
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公开(公告)号：US20240117794A1
公开(公告)日：2024-04-11
申请号：US18276284
申请日：2022-02-11
Inventor： Ragesh CHELLATTOAN , Gilles LUBINEAU
CPC classification number: F03G7/061 , B25J9/144 , F03G7/0616 , F15B15/10
Abstract: A hybrid fiber with tunable stiffness includes a stiff fiber, a soft fiber connected in series to the stiff fiber, and a locking mechanism in contact with the soft fiber and configured to prevent the soft fiber from extending during a locked state, and to allow the soft fiber to extend during an unlocked state. The hybrid fiber has a substantially zero-bending resistance, irrespective of whether the soft fiber is in a locked or an unlocked state.
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公开(公告)号：US20230146683A1
公开(公告)日：2023-05-11
申请号：US17912325
申请日：2021-03-23
Inventor： Gilles LUBINEAU , Hussein NESSER
CPC classification number: G01B7/22 , B32B27/10 , B32B29/002 , B32B3/30 , B32B2250/40 , B32B2307/732 , B32B2457/16
Abstract: A capacitive strain sensor configured to measure a strain includes a dielectric layer; a first electrode placed on a first face of the dielectric layer; and a second electrode placed on a second face, opposite to the first face, of the dielectric layer. The first electrode is formed of a single-walled carbon nanotube paper, and the single-walled carbon nanotube paper has plural pre-cracks made according to a pattern.
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公开(公告)号：US20230028728A1
公开(公告)日：2023-01-26
申请号：US17788910
申请日：2020-12-17
Inventor： Ran TAO , Ahmed WAGIH , Arief YUDHANTO , Gilles LUBINEAU
IPC: C09J7/10
Abstract: A self-standing adhesive layer is configured to join a first adherend to a second adherend, with no additional adhesive. The adhesive layer includes a material that self-stands and is configured to adhere to the first and second adherends; a first surface of the material is opposite to a second surface of the material; a first area of the first surface has a first smoothness and/or morphology and/or adhesion properties; and a second area of the first surface has a second smoothness and/or morphology and/or adhesion properties, different from the first smoothness and/or morphology and/or adhesion properties. The first and second areas form a preset pattern on the first surface.
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10.发明申请公开(公告)号：US20170370024A1
公开(公告)日：2017-12-28
申请号：US15525005
申请日：2015-12-03
Inventor： Jian ZHOU , Er Qiang LI , Gilles LUBINEAU , Sigurdur THORODDSEN , Matthieu MULLE
Abstract: A method comprising: providing at least one first composition comprising at least one conjugated polymer and at least one solvent, wet spinning the at least one first composition to form at least one first fiber material, hot-drawing the at least one fiber to form at least one second fiber material. In lead embodiments, high-performance poly(3,4-ethylenedioxy-thiophene)/poly(styrenesulfonate) (PEDOT/PSS) conjugated polymer microfibers were fabricated via wet-spinning followed by hot-drawing. In these lead embodiments, due to the combined effects of the vertical hot-drawing process and doping/de-doping the microfibers with ethylene glycol (EG), a record electrical conductivity of 2804 S·cm−1 was achieved. This is believed to be a six-fold improvement over the best previously reported value for PEDOT/PSS fibers (467 S·cm−1) and a twofold improvement over the best values for conductive polymer films treated by EG de-doping (1418 S·cm−1). Moreover, these lead, highly conductive fibers experience a semiconductor-metal transition at 313 K. They also have superior mechanical properties with a Young's modulus up to 8.3 GPa, a tensile strength reaching 409.8 MPa and a large elongation before failure (21%). The most conductive fiber also demonstrates an extraordinary electrical performance during stretching/unstretching: the conductivity increased by 25% before the fiber rupture point with a maximum strain up to 21%. Simple fabrication of the semi-metallic, strong and stretchable wet-spun PEDOT/PSS microfibers can make them available for conductive smart electronics. A dramatic improvement in electrical conductivity is needed to make conductive polymer fibers viable candidates in applications such as flexible electrodes, conductive textiles, and fast-response sensors and actuators.
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