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1.发明申请公开(公告)号：US20250129234A1
公开(公告)日：2025-04-24
申请号：US18687391
申请日：2022-08-24
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , George Chiu , Andrea Felicelli , Ioanna Katsamba
Abstract: Paint compositions and paint coatings for radiative cooling, as well as related methods of manufacturing and use of such paint compositions. A composition for paint to be used in radiative cooling, in a wet coating phase, includes nanoplatelets of hexagonal boron nitride, an acrylic binder, and a solvent. A coating of a dried paint on a surface to be cooled by radiative cooling includes nanoplatelets of hexagonal boron nitride and an acrylic binder. A method of manufacturing the composition for paint in the wet paint phase includes forming a first mixture by adding the nanoplatelets of hexagonal boron nitride to the solvent, uniformly distributing the nanoplatelets in the first mixture, and forming a second mixture by adding the acrylic binder to the first mixture.
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公开(公告)号：US20220102775A1
公开(公告)日：2022-03-31
申请号：US17485630
申请日：2021-09-27
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , Amy Marie Marconnet , Tingting Du , Luis Delgado
IPC: H01M10/6551 , H01M10/613 , H01M10/653
Abstract: Variable thermal resistors, systems, and methods suitable for modulating heat transport between a heat source and a heat sink based on a degree of compression of a reversibly-compressible, open-pore graphene foam within the variable thermal resistors. The variable thermal resistor is configured to controllably vary heat transport therethrough by controlling the degree of compression of the graphene foam.
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Patent Agency Ranking
公开(公告)号：US12136718B2
公开(公告)日：2024-11-05
申请号：US17485630
申请日：2021-09-27
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , Amy Marie Marconnet , Tingting Du , Luis Delgado
IPC: H01M10/6551 , H01M10/613 , H01M10/653
Abstract: Variable thermal resistors, systems, and methods suitable for modulating heat transport between a heat source and a heat sink based on a degree of compression of a reversibly-compressible, open-pore graphene foam within the variable thermal resistors. The variable thermal resistor is configured to controllably vary heat transport therethrough by controlling the degree of compression of the graphene foam.
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公开(公告)号：US20220307730A1
公开(公告)日：2022-09-29
申请号：US17703113
申请日：2022-03-24
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , Joseph Arthur Peoples
Abstract: Devices and methods for concentrated radiative cooling using radiative cooling coatings in combination with mid-infrared reflectors. Concentrated radiative cooling (CRC) devices include an object to be cooled that is coated with a radiative cooling material and a mid-infrared (mid-IR) reflector configured to reflect thermal energy radiated from a surface of the object to deep space. The object may be nested in a mid-IR reflective trough such that substantially an entirety of the object's surface area contributes to radiative cooling. The radiative cooling material may be a coating such as a paint or film that is applied directly to the object's exterior surfaces to reduce thermal resistances. The radiative cooling coating is configured to lose thermal energy from the object by means of exhibiting high emissivity for wavelengths of 8 to 13 micrometers, and in some arrangements of 5 to 30 micrometers.
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公开(公告)号：US20250055064A1
公开(公告)日：2025-02-13
申请号：US18933069
申请日：2024-10-31
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , Amy Marie Marconnet , Tingting Du , Luis Delgado
IPC: H01M10/6551 , H01M10/613 , H01M10/653
Abstract: Variable thermal resistors, systems, and methods suitable for modulating heat transport between a heat source and a heat sink based on a degree of compression of a reversibly-compressible, open-pore graphene foam within the variable thermal resistors. The variable thermal resistor is configured to controllably vary heat transport therethrough by controlling the degree of compression of the graphene foam.
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公开(公告)号：US20240368411A1
公开(公告)日：2024-11-07
申请号：US18774135
申请日：2024-07-16
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , Xiangyu Li , Zhifeng Huang , Joseph Arthur Peoples
Abstract: Metal-free compositions for solar-reflective infrared-emissive coatings and methods of producing the same. The paints are suitable for reducing the temperatures of objects below ambient temperatures between sunset and sunrise (nighttime) and part or full daytime (between sunrise and sunset) when such objects are subjected to direct sunlight. Such a solar-reflective infrared-emissive paint may include a particle-polymer composite containing particles in a polymeric matrix, wherein the particles are nanoparticles or microparticles, the paint does not contain a metallic component, and the paint exhibits high reflectance for the solar spectrum wavelengths of 0.3 to 3 micrometers and high emissivity for wavelengths of 8 to 13 micrometers.
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公开(公告)号：US20210403726A1
公开(公告)日：2021-12-30
申请号：US17282958
申请日：2019-10-03
Applicant: Purdue Research Foundation
Inventor： Xiulin Ruan , Xiangyu Li , Zhifeng Huang , Joseph Arthur Peoples
Abstract: Metal-free compositions for solar-reflective infrared-emissive coatings and methods of producing the same. The paints are suitable for reducing the temperatures of objects below ambient temperatures between sunset and sunrise (nighttime) and part or full daytime (between sunrise and sunset) when such objects are subjected to direct sunlight. Such a solar-reflective infrared-emissive paint may include a particle-polymer composite containing particles in a polymeric matrix, wherein the particles are nanoparticles or microparticles, the paint does not contain a metallic component, and the paint exhibits high reflectance for the solar spectrum wavelengths of 0.3 to 3 micrometers and high emissivity for wavelengths of 8 to 13 micrometers.
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