QQ客服 官方微博 反馈留言

	Tuning wettability and getting superhydrophobic surface by controlling surface roughness with well-designed microstructures
	Yanying Feng ; Liang Zhu ; Xiongying Ye ; Zhaoying Zhou
	2010-05-10 ; 2010-05-10
关键词	Practical Experimental/ contact angle drops microfluidics micromachining monolayers self-assembly surface roughness wetting/ wettability property superhydrophobic surface surface roughness solid surface square micropillar silicon micromachining self-assembled monolayer contact angle 26.34 micron 9.45 micron 16 micron/ A0710C Micromechanical devices and systems A6820 Solid surface structure A6810C Fluid surface energy (surface tension, interface tension, angle of contact, etc.) A8116D Self-assembly in nanofabrication A6817 Monolayers and Langmuir-Blodgett films B2575D Design and modelling of micromechanical devices B2575F Fabrication of micromechanical devices/ distance 2.634E-05 m size 9.45E-06 m size 1.6E-05 m
中文摘要	We proposed a method to tune the wettability of a solid surface by changing its roughness. With specific designed micro square pillar arrays, the apparent contact angle of a hydrophobic surface can be continuously adjusted from the intrinsic contact angle. The samples were fabricated by combining silicon micromachining and self-assembled monolayer modification. The experimental results were closer to Cassie's theoretical predictions on the superhydrophobic surfaces than that by Wenzel's. The apparent contact angle (CA) can be tuned from the intrinsic CA to a superhydrophobic CA. The largest apparent CA in our experiments can be up to 162 degrees , with pillars of 9.45 mu m*9.45 mu m*16 mu m (width*width*height), and the spacing of 26.34 mu m. By controlling the size and layout of the square micropillars, we also formed a surface with a certain roughness gradient, on which spontaneous movement of a droplet has been observed. [All rights reserved Elsevier].
语种	英语 ; 英语
出版者	Elsevier ; Switzerland
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/24983]
专题	清华大学
推荐引用方式 GB/T 7714	Yanying Feng,Liang Zhu,Xiongying Ye,et al. Tuning wettability and getting superhydrophobic surface by controlling surface roughness with well-designed microstructures[J],2010, 2010.
APA	Yanying Feng,Liang Zhu,Xiongying Ye,&Zhaoying Zhou.(2010).Tuning wettability and getting superhydrophobic surface by controlling surface roughness with well-designed microstructures..
MLA	Yanying Feng,et al."Tuning wettability and getting superhydrophobic surface by controlling surface roughness with well-designed microstructures".(2010).

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。