气候变化领域集成服务门户(CCPortal): Aerogel-Functionalized Thermoplastic Polyurethane as Waterproof, Breathable Freestanding Films and Coatings for Passive Daytime Radiative Cooling

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DOI	10.1002/advs.202201190
	Aerogel-Functionalized Thermoplastic Polyurethane as Waterproof, Breathable Freestanding Films and Coatings for Passive Daytime Radiative Cooling
	Shan, Xiameng; Liu, Ling; Wu, Yusi; Yuan, Dengsen; Wang, Jing; Zhang, Chengjiao; Wang, Jin
发表日期	2022
EISSN	2198-3844
卷号	9 期号:20
英文摘要	Passive daytime radiative cooling (PDRC) is an emerging sustainable technology that can spontaneously radiate heat to outer space through an atmospheric transparency window to achieve self-cooling. PDRC has attracted considerable attention and shows great potential for personal thermal management (PTM). However, PDRC polymers are limited to polyethylene, polyvinylidene fluoride, and their derivatives. In this study, a series of polymer films based on thermoplastic polyurethane (TPU) and their composite films with silica aerogels (aerogel-functionalized TPU (AFTPU)) are prepared using a simple and scalable non-solvent-phase-separation strategy. The TPU and AFTPU films are freestanding, mechanically strong, show high solar reflection up to 94%, and emit strongly in the atmospheric transparency window, thereby achieving subambient cooling of 10.0 and 7.7 degrees C on a hot summer day for the TPU and AFTPU film (10 wt%), respectively. The AFTPU films can be used as waterproof and moisture permeable coatings for traditional textiles, such as cotton, polyester, and nylon, and the highest temperature drop of 17.6 degrees C is achieved with respect to pristine nylon fabric, in which both the cooling performance and waterproof properties are highly desirable for the PTM applications. This study opens up a promising route for designing common polymers for highly efficient PDRC.
英文关键词	aerogel; passive radiative cooling; personal thermal management; thermoplastic polyurethane
语种	英语
WOS研究方向	Chemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000787713900001
来源期刊	ADVANCED SCIENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280963
作者单位	Chinese Academy of Sciences; University of Science & Technology of China, CAS; Chinese Academy of Sciences; Suzhou Institute of Nano-Tech & Nano-Bionics, CAS; Gusu Laboratory; Nantong University
推荐引用方式 GB/T 7714	Shan, Xiameng,Liu, Ling,Wu, Yusi,et al. Aerogel-Functionalized Thermoplastic Polyurethane as Waterproof, Breathable Freestanding Films and Coatings for Passive Daytime Radiative Cooling[J],2022,9(20).
APA	Shan, Xiameng.,Liu, Ling.,Wu, Yusi.,Yuan, Dengsen.,Wang, Jing.,...&Wang, Jin.(2022).Aerogel-Functionalized Thermoplastic Polyurethane as Waterproof, Breathable Freestanding Films and Coatings for Passive Daytime Radiative Cooling.ADVANCED SCIENCE,9(20).
MLA	Shan, Xiameng,et al."Aerogel-Functionalized Thermoplastic Polyurethane as Waterproof, Breathable Freestanding Films and Coatings for Passive Daytime Radiative Cooling".ADVANCED SCIENCE 9.20(2022).