Title:
RADIATION COOLING THIN FILM, PREPARATION METHOD THEREFOR, AND USE THEREOF
Document Type and Number:
WIPO Patent Application WO/2021/253580
Kind Code:
A1
Abstract:
Disclosed is a radiation cooling thin film. The thin film is formed by mixing ceramic particles, an organic solution and a curing agent with an organic curing precursor solution and then curing same. A micro-nano photon structure array is formed on the surface of the thin film, and the micro-nano photon structure array comprises a plurality of arrayed micro-nano photon structure elements. Further disclosed are a method for preparing the radiation cooling thin film, and the use thereof. The thin film has a reflectivity of 95% in the wave band of sunlight and a radiance of 96% in the atmospheric window band, can be less than the ambient environment by at most 10°C under illumination conditions, and also has a relatively good flexibility and strength and an excellent hydrophobicity. The radiation cooling thin film is prepared with a large area at a low cost by using a multi-etching double-spin-coating vacuum thermosetting process. The use of the radiation cooling thin film in wearable cooling all-weather umbrellas with a cooling functionality, and in device heat dissipation, and a cooling method for removing, in a heat radiation manner, heat from the surface and interior of a body to achieve cooling are provided.
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Inventors:
ZHOU HAN (CN)
ZHANG HAIWEN (CN)
CHEIN SHENG LY KALLY (CN)
FAN TONGXIANG (CN)
ZHANG HAIWEN (CN)
CHEIN SHENG LY KALLY (CN)
FAN TONGXIANG (CN)
Application Number:
PCT/CN2020/105493
Publication Date:
December 23, 2021
Filing Date:
July 29, 2020
Export Citation:
Assignee:
UNIV SHANGHAI JIAOTONG (CN)
International Classes:
C08L83/04; B29C41/24; C08J5/18; C08K3/22; C08K5/14; C08K5/5415; C08K7/00; C08K7/18; C08K13/02; C08K13/04; C08L27/06; C08L27/18; C08L63/00; C08L77/00
Foreign References:
| CN107923718A | 2018-04-17 | |||
| CN110030760A | 2019-07-19 | |||
| US20190086164A1 | 2019-03-21 | |||
| CN110350048A | 2019-10-18 |
Other References:
ZHANG HAIWEN, LY KALLY C. S., LIU XIANGHUI, CHEN ZHIHAN, YAN MAX, WU ZILONG, WANG XIN, ZHENG YUEBING, ZHOU HAN, FAN TONGXIANG: "Biologically inspired flexible photonic films for efficient passive radiative cooling", PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES, NATIONAL ACADEMY OF SCIENCES, vol. 117, no. 26, 30 June 2020 (2020-06-30), pages 14657 - 14666, XP055882125, ISSN: 0027-8424, DOI: 10.1073/pnas.2001802117
JEONG S.Y.; TSO C.Y.; WONG Y.M.; CHAO C.Y.H.; HUANG B.: "Daytime passive radiative cooling by ultra emissive bio-inspired polymeric surface", SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM., NL, vol. 206, 20 November 2019 (2019-11-20), NL , XP086059419, ISSN: 0927-0248, DOI: 10.1016/j.solmat.2019.110296
WANG XIN, LIU XIANGHUI, LI ZHENYANG, ZHANG HAIWEN, YANG ZHIWEI, ZHOU HAN, FAN TONGXIANG: "Scalable Flexible Hybrid Membranes with Photonic Structures for Daytime Radiative Cooling", ADVANCED FUNCTIONAL MATERIALS, WILEY - V C H VERLAG GMBH & CO. KGAA, DE, vol. 30, no. 5, 1 January 2020 (2020-01-01), DE , pages 1907562, XP055790964, ISSN: 1616-301X, DOI: 10.1002/adfm.201907562
JEONG S.Y.; TSO C.Y.; WONG Y.M.; CHAO C.Y.H.; HUANG B.: "Daytime passive radiative cooling by ultra emissive bio-inspired polymeric surface", SOLAR ENERGY MATERIALS AND SOLAR CELLS, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM., NL, vol. 206, 20 November 2019 (2019-11-20), NL , XP086059419, ISSN: 0927-0248, DOI: 10.1016/j.solmat.2019.110296
WANG XIN, LIU XIANGHUI, LI ZHENYANG, ZHANG HAIWEN, YANG ZHIWEI, ZHOU HAN, FAN TONGXIANG: "Scalable Flexible Hybrid Membranes with Photonic Structures for Daytime Radiative Cooling", ADVANCED FUNCTIONAL MATERIALS, WILEY - V C H VERLAG GMBH & CO. KGAA, DE, vol. 30, no. 5, 1 January 2020 (2020-01-01), DE , pages 1907562, XP055790964, ISSN: 1616-301X, DOI: 10.1002/adfm.201907562
Attorney, Agent or Firm:
SHANGHAI HANGSOME INTELLECTUAL PROPERTY LTD (CN)
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