|Fabrication of Novel Superhydrophobic Surfaces and Water Droplet Bouncing Behavior - Part 1: Stable ZnO-PDMS Superhydrophobic Surface with Low Hysteresis Constructed Using ZnO Nanoparticles|
|Wang BB(王斌斌); Feng JT(冯江涛); Zhao YP(赵亚溥); Yu TX; Zhao YP
|Source Publication||Journal of Adhesion Science and Technology
|Abstract||A superhydrophobic surface has many advantages in micro/nanomechanical applications, such as low adhesion, low friction and high restitution coefficient, etc. In this paper, we introduce a novel and simple route to fabricate superhydrophobic surfaces using ZnO nanocrystals. First, tetrapod-like ZnO nanocrystals were prepared via a one-step, direct chemical vapor deposition (CVD) approach. The nanostructured ZnO material was characterized by scanning electron microscope (SEM) and X-ray diffraction (XRD) and the surface functionalized by aminopropyltriethoxysilane (APS) was found to be hydrophobic. Then the superhydrophobic surface was constructed by depositing uniformly ZnO hydrophobic nanoparticles (HNPs) on the Poly(dimethylsiloxane) (PDMS) film substrate. Water wettability study revealed a contact angle of 155.4 +/- 2 degrees for the superhydrophobic surface while about 110 degrees for pure smooth PDMS films. The hysteresis was quite low, only 3.1 +/- 0.3 degrees. Microscopic observations showed that the surface was covered by micro- and nano-scale ZnO particles. Compared to other approaches, this method is rather convenient and can be used to obtain a large area superhydrophobic surface. The high contact angle and low hysteresis could be attributed to the micro/nano structures of ZnO material; besides, the superhydrophobic property of the as-constructed ZnO-PDMS surface could be maintained for at least 6 months. (C) Koninklijke Brill NV, Leiden, 2010|
Contact Angle Hysteresis
|WOS Keyword||SELF-ASSEMBLED MONOLAYERS
; LINE TENSION
|WOS Research Area||Engineering
; Materials Science
|WOS Subject||Engineering, Chemical
; Materials Science, Multidisciplinary
|Funding Organization||National High-tech R&D Program of China (863 Program) [2007AA021803]
; National Basic Research Program of China (973 Program) [2007CB310500]
; National Natural Science Foundation of China (NSFC) [10772180, 60936001, 10721202]
|Corresponding Author||Zhao YP|
Wang BB,Feng JT,Zhao YP,et al. Fabrication of Novel Superhydrophobic Surfaces and Water Droplet Bouncing Behavior - Part 1: Stable ZnO-PDMS Superhydrophobic Surface with Low Hysteresis Constructed Using ZnO Nanoparticles[J]. Journal of Adhesion Science and Technology,2010,24(15-16):2693-2705.
王斌斌,冯江涛,赵亚溥,Yu TX,&Zhao YP.(2010).Fabrication of Novel Superhydrophobic Surfaces and Water Droplet Bouncing Behavior - Part 1: Stable ZnO-PDMS Superhydrophobic Surface with Low Hysteresis Constructed Using ZnO Nanoparticles.Journal of Adhesion Science and Technology,24(15-16),2693-2705.
王斌斌,et al."Fabrication of Novel Superhydrophobic Surfaces and Water Droplet Bouncing Behavior - Part 1: Stable ZnO-PDMS Superhydrophobic Surface with Low Hysteresis Constructed Using ZnO Nanoparticles".Journal of Adhesion Science and Technology 24.15-16(2010):2693-2705.