气候变化领域集成服务门户(CCPortal): Surface modification of multi-scale cuprous oxide with tunable catalytic activity towards toxic fumes and smoke suppression of rigid polyurethane foam

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DOI	10.1016/j.apsusc.2021.149792
	Surface modification of multi-scale cuprous oxide with tunable catalytic activity towards toxic fumes and smoke suppression of rigid polyurethane foam
	Yuan Y.; Wang W.; Xiao Y.; Chun Yin Yuen A.; Mao L.; Pan H.; Yu B.; Hu Y.
发表日期	2021
ISSN	1694332
卷号	556
英文摘要	The development of flame retardant rigid polyurethane foam (RPUF) composites with low smoke toxicity emission, as well as excellent mechanical properties remains a huge challenge. Herein, a facile wet chemical approach was proposed for the preparation of cuprous oxide (Cu2O) crystals with different sizes, i.e. approximately 5 nm, 100 nm and 1 μm in lateral size, which were confirmed by X-ray diffraction and transmission electron microscopy. The effect of Cu2O crystals on the combustion behavior of RPUF was evaluated by cone calorimetry and steady state tube furnace tests. Significant reduction in peak carbon monoxide (CO) production rate (by 41.2%, 67.6% and 27.9%) and total smoke production (21.6%, 16.1% and 12.2%) were realized by the incorporation of 2 wt% Cu2O into the RPUF matrix in addition to a slight reduction in peak heat release rate. Notably, nano-sized Cu2O with high specific surface area is beneficial for the complete combustion of RPUF and the conversion of CO to carbon dioxide (CO2), involving the reduction of Cu2+-Cu+-Cu0 by degraded gases and the oxidation of Cu0-Cu+-Cu2+ by oxygen. This work demonstrated that submicron-sized Cu2O is an effective smoke and toxic gases suppressant for RPUF, which is expected to find practical applications in polymeric materials. © 2021 Elsevier B.V.
英文关键词	Cuprous oxide; Fire safety; Rigid polyurethane foam; Surface modification; Toxic fumes
scopus关键词	Carbon dioxide; Carbon monoxide; Catalyst activity; Combustion; Copper oxides; High resolution transmission electron microscopy; Polyurethanes; Rigid foamed plastics; Surface treatment; % reductions; Cuprous oxide; Fire safety; Fume suppressions; Multi-scales; Rigid polyurethane foams; Surface-modification; Toxic fumes; Toxic smokes; Tunables; Smoke
来源期刊	Applied Surface Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/177166
作者单位	Fujian Provincial Key Laboratory of Functional Materials and Applications, School of Materials Science and Engineering, Xiamen University of Technology, Xiamen, 361024, China; School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia; Faculty of Engineering, China University of Geosciences (Wuhan), Wuhan, Hubei 430074, China; Centre for Future Materials, University of Southern Queensland, Toowoomba, Queensland 4350, Australia; State Key Laboratory of Fire Science, University of Science and Technology of China, Hefei, 230026, China
推荐引用方式 GB/T 7714	Yuan Y.,Wang W.,Xiao Y.,et al. Surface modification of multi-scale cuprous oxide with tunable catalytic activity towards toxic fumes and smoke suppression of rigid polyurethane foam[J],2021,556.
APA	Yuan Y..,Wang W..,Xiao Y..,Chun Yin Yuen A..,Mao L..,...&Hu Y..(2021).Surface modification of multi-scale cuprous oxide with tunable catalytic activity towards toxic fumes and smoke suppression of rigid polyurethane foam.Applied Surface Science,556.
MLA	Yuan Y.,et al."Surface modification of multi-scale cuprous oxide with tunable catalytic activity towards toxic fumes and smoke suppression of rigid polyurethane foam".Applied Surface Science 556(2021).