Browse > Article
http://dx.doi.org/10.17702/jai.2015.16.3.116

Preparation of Superhydrophobic Surfaces Using Agglomeration Control of Silica Nanoparticles by Organic Solvent and Non-fluoride Self-assembled Monolayers  

Kim, Taeyoon (Department of Polymer Science and Engineering, Pusan National University)
Jeong, Jin (Department of Polymer Science and Engineering, Pusan National University)
Chung, Ildoo (Department of Polymer Science and Engineering, Pusan National University)
Publication Information
Journal of Adhesion and Interface / v.16, no.3, 2015 , pp. 116-121 More about this Journal
Abstract
In this study, octadecyltrichlorosilane (OTS) has been used to replace fluoro-silanes which are much more expensive than OTS. In order to improve the mechanical and adhesive properties of coating layers, inorganic binders were separately synthesized based on sol-gel reaction in acidic condition. Since the synthesized silica nanoparticles gave only nano-scaled roughness, superhydrophobicity is not well obtained. Here, we present a new simple approach by intentionally inducing particle aggregation in the solution which is controlled by adjusting solvent amount. With selecting suitable sizes of silica nanoparticles, superhydrophobic surfaces were obtained with increasing the amount of organic solvents after surface hydrophobization using OTS, and an extremely water-repellent behavior was observed with zero sliding angle. This superhydrophobicity was achived only for the dielectric constant lower than 25, regardless of the composition of solvent, meaning that the dielectric constant could be an excellent indicator for fabricating superhydrobic surfaces induced by particle aggregation in the solution.
Keywords
superhydrophobic; OTS; non-fluoride; silica; nanoparticles;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 K. D. Han, C. P. Leo, and S. P. Chai, Applied Surface Science, 258 (2012).
2 H. Wang, L. Tang, X. Wu, W. Dai, and Y. Qiu, Applied Surface Science, 253, 8818 (2007).   DOI
3 A. V. Rao, S. S. Latthe, D. Y. Nadargi, H. Hrashima, and V. Ganesan, Journal of Colloid and Interface Science, 332, 484 (2009).   DOI   ScienceOn
4 Y. K. Kang, E. M. Kwak, and I. Chung, Journal of Adhesion and Interface, 15, 151 (2014).   DOI
5 H. S. Lim, KIC News, 5, 11 (2012).
6 C. Neinhuis and W. Barthlott, Journal of Adhesion and Interface, 4, 9 (2003).
7 Y. W Jung, J. W. Park, I. Kim, and C. S. Ha, Journal of Adhesion and Interface, 6, 1 (2005).
8 H. M. Shang, Y. W, S. J. Limmer, T. P. Chou, K. Takahashi, and G. Z. Cao, Thin Solid Films, 472, 37 (2007).
9 W. Barthlott and C. Neinhuis, Planta, 202, 1 (1997).   DOI
10 X. F. Gao and L. Jiang, Nature, 432, 36 (2004).   DOI
11 T. Wagner, C. Neinhuis, and W. Barthlott, Acta Zool., 77, 213 (1996).   DOI
12 W. Lee, M. K. Jin, W. C. Yoo, and J. K. Lee, Langmuir, 20, 7665 (2004).   DOI
13 R. N. Wenzel, Ind. Eng. Chem., 28, 988 (1936).   DOI
14 A. B. D. Cassie and S. Baxter, Trans. Faraday Soc., 40, 546 (1944).   DOI
15 A. R. Parker and C. R. Lawrence, Nature, 414, 33 (2001).   DOI
16 R. Wang, K. Hashimoto, A. Fujishima, M. Chikuni, E. Kojima, A. Kitamura, M. Shimohigoshi, and T. Watanabe, Adv. Mater., 10, 135 (1998).   DOI
17 C. Qian, C. Guanghua, F. Yan, and R. Luquan, J. Bion. Eng., 1, 249 (2004).
18 C. Neinhuis and W. Barthlott, Ann. Bot., 79, 667 (1997).   DOI