Superamphiphobic Surfaces with Controllable Adhesion Fabricated by Femtosecond Laser Bessel Beam on PTFE

doi:10.1002/admi.201900550

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	Superamphiphobic Surfaces with Controllable Adhesion Fabricated by Femtosecond Laser Bessel Beam on PTFE
	D.K.Chu; S.C.Singh; J.L.Yong; Z.B.Zhan; X.Y.Sun; J.A.Duan
	2019
发表期刊	Advanced Materials Interfaces
ISSN	2196-7350
卷号	6 期号:14 页码:9
摘要	In this study, a facile method is presented to fabricate superamphiphobic surfaces with controllable adhesion on polytetrafluoroethylene (PTFE), for the first time, using femtosecond laser Bessel beam. Compared to previous structures mostly based on 1D microstructure produced by Gaussian beam, the surfaces are characterized by highly uniform 2D periodic hill-groove structures covered with extensive porous-mesh nanostructures. Most significantly, the 2D hill-groove structures have a very high-aspect-ratio since the energy distribution of the Bessel beam is more uniform over a longer focusing range. Moreover, the profile of the obtained microstructures is a nearly perfect semi-spherical shape. As a result, the processed surfaces become superamphiphobic, exhibiting a contact angle of 166 degrees for water and 160 degrees for oil, respectively. Furthermore, the surface adhesion can be controlled from ultralow to ultrahigh by adjusting the period of the hill-groove 2D-patterned structures. It is demonstrated that the ultralow adhesion surfaces show excellent antifog and anti-icing properties, while the ultrahigh adhesion surfaces can be used for water and oil collection. Both surfaces have a good mechanical stability and are stable over a wide range of temperatures. The superamphiphobic PTFE surfaces with tunable adhesion can be used for self-cleaning, microfluidic systems, and harsh environments.
关键词	Bessel beam,femtosecond laser,polytetrafluoroethylene,superamphiphobic surfaces,tunable adhesion
DOI	10.1002/admi.201900550
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收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63428
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	D.K.Chu,S.C.Singh,J.L.Yong,et al. Superamphiphobic Surfaces with Controllable Adhesion Fabricated by Femtosecond Laser Bessel Beam on PTFE[J]. Advanced Materials Interfaces,2019,6(14):9.
APA	D.K.Chu,S.C.Singh,J.L.Yong,Z.B.Zhan,X.Y.Sun,&J.A.Duan.(2019).Superamphiphobic Surfaces with Controllable Adhesion Fabricated by Femtosecond Laser Bessel Beam on PTFE.Advanced Materials Interfaces,6(14),9.
MLA	D.K.Chu,et al."Superamphiphobic Surfaces with Controllable Adhesion Fabricated by Femtosecond Laser Bessel Beam on PTFE".Advanced Materials Interfaces 6.14(2019):9.

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