Assessment of morphology, topography and chemical composition of water-repellent films based on polystyrene/titanium dioxide nanocomposites

被引:12
作者
Bolvardi, Beleta [1 ]
Seyfi, Javad [2 ]
Hejazi, Iman [3 ]
Otadi, Maryam [1 ]
Khonakdar, Hossein Ali [4 ,5 ]
Drechsler, Astrid [5 ]
Holzschuh, Matthias [5 ]
机构
[1] Islamic Azad Univ, Cent Tehran Branch, Dept Chem Engn, Tehran, Iran
[2] Islamic Azad Univ, Shahrood Branch, Dept Chem Engn, POB 36155-163, Shahrood, Iran
[3] ASNARKA, Appl Sci Nano Res Grp, Tehran 1619948753, Iran
[4] Islamic Azad Univ, South Tehran Branch, Fac Engn, Dept Polymer Engn, Tehran, Iran
[5] Leibniz Inst Polymerforsch Dresden eV, Hohe Str 6, D-01069 Dresden, Germany
关键词
Polystyrene; Superhydrophobic; Self-cleaning; Titanium dioxide; Roughness analysis; SUPERHYDROPHOBIC SURFACE; SILICA NANOPARTICLES; FABRICATION; COATINGS; WETTABILITY; ADHESION; BEHAVIOR; HYDROPHOBICITY; POLYURETHANE; TRANSPARENT;
D O I
10.1016/j.apsusc.2016.10.205
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
In this study, polystyrene (PS)/titanium dioxide (TiO2) films were fabricated through simple solution casting technique via a modified phase separation process. The presented approach resulted in a remarkable reduction in the required amount of nanoparticles for achieving superhydrophobicity. Scanning electron microscopy (SEM) and 3D confocal microscopy were utilized to characterize surface morphology and topography of samples, respectively. An attempt was made to give an in-depth analysis on the surface rough structure using 3D roughness profiles. It was found that high inclusions of non-solvent and nanoparticles resulted in a stable self-cleaning behavior due to the strong presence of hydrophobic TiO2 nanoparticles on the surface. Quite unexpectedly, low inclusions of nanoparticles and non-solvent also resulted in superhydrophobic property mainly due to the proper level of induced surface roughness. XPS analysis was also utilized to determine the chemical composition of the films' surfaces. The results of falling drop experiments showed that the sample containing a higher level of nanoparticles had a much lower mechanical resistance against the induced harsh conditions. All in all, the presented method has shown promising potential in fabrication of superhydrophobic surfaces with self-cleaning behavior using the lowest content of nanoparticles. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码:616 / 624
页数:9
相关论文
共 32 条
[1]   Current trend in fabrication of complex morphologically tunable superhydrophobic nano scale surfaces [J].
Abdulhussein, Ali T. ;
Kannarpady, Ganesh K. ;
Wright, Andrew B. ;
Ghosh, Anindya ;
Biris, Alexandru S. .
APPLIED SURFACE SCIENCE, 2016, 384 :311-332
[2]   Purity of the sacred lotus, or escape from contamination in biological surfaces [J].
Barthlott, W ;
Neinhuis, C .
PLANTA, 1997, 202 (01) :1-8
[3]   Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction [J].
Bhushan, Bharat ;
Jung, Yong Chae .
PROGRESS IN MATERIALS SCIENCE, 2011, 56 (01) :1-108
[4]   Superhydrophobic Hierarchical Honeycomb Surfaces [J].
Brown, P. S. ;
Talbot, E. L. ;
Wood, T. J. ;
Bain, C. D. ;
Badyal, J. P. S. .
LANGMUIR, 2012, 28 (38) :13712-13719
[5]   Nanotexturing of polystyrene surface in fluorocarbon plasmas: From sticky to slippery superhydrophobicity [J].
Di Mundo, Rosa ;
Palumbo, Fabio ;
d'Agostino, Riccardo .
LANGMUIR, 2008, 24 (09) :5044-5051
[6]   Transformation of a simple plastic into a superhydrophobic surface [J].
Erbil, HY ;
Demirel, AL ;
Avci, Y ;
Mert, O .
SCIENCE, 2003, 299 (5611) :1377-1380
[7]   Super-hydrophobic surfaces: From natural to artificial [J].
Feng, L ;
Li, SH ;
Li, YS ;
Li, HJ ;
Zhang, LJ ;
Zhai, J ;
Song, YL ;
Liu, BQ ;
Jiang, L ;
Zhu, DB .
ADVANCED MATERIALS, 2002, 14 (24) :1857-1860
[8]   Petal effect: A superhydrophobic state with high adhesive force [J].
Feng, Lin ;
Zhang, Yanan ;
Xi, Jinming ;
Zhu, Ying ;
Wang, Nue ;
Xia, Fan ;
Jiang, Lei .
LANGMUIR, 2008, 24 (08) :4114-4119
[9]   Wetting and self-cleaning properties of artificial superhydrophobic surfaces [J].
Fürstner, R ;
Barthlott, W ;
Neinhuis, C ;
Walzel, P .
LANGMUIR, 2005, 21 (03) :956-961
[10]   Teflon is hydrophilic. Comments on definitions of hydrophobic, shear versus tensile hydrophobicity, and wettability characterization [J].
Gao, Lichao ;
McCarthy, Thomas J. .
LANGMUIR, 2008, 24 (17) :9183-9188