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Superhydrophobicity determines the buoyancy performance of kapok fiber aggregates

文献类型：期刊论文

作者Zhang, Xiaoyan1; Fu, Wangyang2; Duan, Chunting1; Xiao, Hong3; Shi, Meiwu3; Zhao, Ning1; Xu, Jian1
刊名APPLIED SURFACE SCIENCE
出版日期2013-02-01
卷号266页码:225-229
关键词Superhydrophobicity Natural Buoyancy Material Kapok Fiber Low Density
ISSN号0169-4332
DOI10.1016/j.apsusc.2012.11.153
英文摘要Superhydrophobicity is commonly regarded as a surface property that has important consequences for self-cleaning applications. Here we show interestingly that the superhydrophobicity is closely connected to the bulk buoyancy performance of kapok fiber aggregates, a natural material endowed with superhydrophobicity and extraordinary high porosity. First of all, we have determined the superhydrophobicity of a single kapok fiber, which can be ascribed to its micro-nano-binary structure (MNBS) and the thin hydrophobic paraffinic wax layer covered on the surface. Second, based on classic capillary and wicking theory, the buoyancy performance of the kapok fiber aggregates can be modeled and we demonstrate that their buoyancy performance is actually determined by the superhydrophobicity of individual kapok fibers. Our results also suggest an optimized density similar to 0.015 g cm(-3) for using kapok fiber aggregates as the lightest natural buoyancy. (C) 2012 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000314021100037
出版者ELSEVIER SCIENCE BV
源URL[http://ir.iccas.ac.cn/handle/121111/53633]  
专题中国科学院化学研究所
通讯作者Zhao, Ning
作者单位1.Chinese Acad Sci, Lab Polymer Phys & Chem, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
2.Univ Basel, Dept Phys, CH-4056 Basel, Switzerland
3.PLA, Gen Logist Dept, Quartermaster Res Inst, Beijing 100082, Peoples R China
推荐引用方式
GB/T 7714		 Zhang, Xiaoyan,Fu, Wangyang,Duan, Chunting,et al. Superhydrophobicity determines the buoyancy performance of kapok fiber aggregates[J]. APPLIED SURFACE SCIENCE,2013,266:225-229.
APA Zhang, Xiaoyan.,Fu, Wangyang.,Duan, Chunting.,Xiao, Hong.,Shi, Meiwu.,...&Xu, Jian.(2013).Superhydrophobicity determines the buoyancy performance of kapok fiber aggregates.APPLIED SURFACE SCIENCE,266,225-229.
MLA Zhang, Xiaoyan,et al."Superhydrophobicity determines the buoyancy performance of kapok fiber aggregates".APPLIED SURFACE SCIENCE 266(2013):225-229.

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来源：化学研究所

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