期刊
APPLIED SURFACE SCIENCE
卷 332, 期 -, 页码 393-402出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2015.01.174
关键词
Raspberry-like; Composite particle; Assembly; Wettability; Binary roughness
类别
资金
- Specialized Research Fund for the Doctoral Program of Higher Education [20130172110008]
- Key Technologies R&D Program of Shanxi Province [20140313019-3]
- Start-Up Funds of Taiyuan Institute of Technology
- Program for the Innovative Talents of Taiyuan Institute of Technology
Sulfonated PS template/aniline medium method was used to assemble raspberry-like composite particles with varied dual-size binary morphology. The assembly efficiency of SiO2 particles on templates was found to increase with sulfonation temperature as well as sulfuric acid concentration. For sulfonation time one turning point appeared because there existed one balance between microgel structure formation and PSS chains detachment. The optimal preparation condition was finally obtained and proved effective for other types of anionic particles. Wettability of surfaces with varied binary roughness was studied and the results showed that dual-size structure could further improve the hydrophobic performance. The contact angles were found to increase with the size ratio of template particles/outer particles. (C) 2015 Elsevier B.V. All rights reserved.
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