气候变化领域集成服务门户(CCPortal): A scalable high-porosity wood for sound absorption and thermal insulation

CCPortal

DOI	10.1038/s41893-022-01035-y
	A scalable high-porosity wood for sound absorption and thermal insulation
	Zhao, Xinpeng; Liu, Yu; Zhao, Liuxian; Yazdkhasti, Amirhossein; Mao, Yimin; Siciliano, Amanda Pia; Dai, Jiaqi; Jing, Shuangshuang; Xie, Hua; Li, Zhihan; He, Shuaiming; Clifford, Bryson Callie; Li, Jianguo; Chen, Grace S. S.; Wang, Emily Q. Q.; Desjarlais, Andre; Saloni, Daniel; Yu, Miao; Kosny, Jan; Zhu, J. Y.; Gong, Amy; Hu, Liangbing
发表日期	2022
ISSN	2398-9629
页码	13
英文摘要	The search for more-sustainable materials has motivated research on lightweight, porous structures for thermal insulation and noise reduction, such as for construction and cold-chain transportation. Wood, known as one of the most renewable materials on Earth, has been widely and long used in construction for its high strength/weight ratio, wide abundance, low cost and relative sustainability. However, natural wood is much less effective at reducing noise or preventing heat loss than conventional petroleum-and mineral-based porous structures (for example, expanded polystyrene foam and mineral wool). Here we report the extraordinary noise-reduction and thermal-insulation capabilities of a scalable, high-porosity wood structure, insulwood', fabricated by removing lignin and hemicelluloses from natural wood using a rapid (similar to 1 h) high-temperature process followed by low-cost ambient drying. Insulwood demonstrates a high porosity of similar to 0.93, a high noise-reduction coefficient of 0.37 at a frequency range of 250-3,000 Hz (for 10-mm-thick wood), a low radial thermal conductivity of 0.038 W m(-1) K-1 and a high compressive strength of similar to 1.5 MPa at 60% strain. Furthermore, this new wood-based material can be rapidly processed into a vacuum insulation panel (similar to 0.01 W m(-1) K-1) for thermal insulation applications with limited space (for example, refrigerators, cold-chain transportation and older buildings). The material is unique in its combination of renewable source materials, high porosity, high sound absorption, low thermal conductivity and high mechanical robustness, as well as in its efficient, cost-effective and scalable manufacturing. These attributes make insulwood promising as a sustainable construction material for improved noise and thermal regulation.
学科领域	Green & Sustainable Science & Technology; Environmental Sciences; Environmental Studies
语种	英语
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS记录号	WOS:000913832800002
来源期刊	NATURE SUSTAINABILITY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/272894
作者单位	University System of Maryland; University of Maryland College Park; University System of Maryland; University of Maryland College Park; National Institute of Standards & Technology (NIST) - USA; United States Department of Energy (DOE); Oak Ridge National Laboratory; North Carolina State University; University of Massachusetts System; University of Massachusetts Lowell; United States Department of Agriculture (USDA); United States Forest Service; University System of Maryland; University of Maryland College Park
推荐引用方式 GB/T 7714	Zhao, Xinpeng,Liu, Yu,Zhao, Liuxian,et al. A scalable high-porosity wood for sound absorption and thermal insulation[J],2022:13.
APA	Zhao, Xinpeng.,Liu, Yu.,Zhao, Liuxian.,Yazdkhasti, Amirhossein.,Mao, Yimin.,...&Hu, Liangbing.(2022).A scalable high-porosity wood for sound absorption and thermal insulation.NATURE SUSTAINABILITY,13.
MLA	Zhao, Xinpeng,et al."A scalable high-porosity wood for sound absorption and thermal insulation".NATURE SUSTAINABILITY (2022):13.