Influence of some system parameters on silica surface patterns by sol-gel phase separation method

International Conference on Functional Materials and Nanotechnologies 2013

材料科学;物理学

Kangur, T.^1,2 ; Nurmis, L.^1,2 ; Järvekülg, M.^1,2

Institute of Physics, University of Tartu, Riia 142, 51014Tartu, Estonia^1

Estonian Nanotechnology Competence Centre, Riia 142, 51014 Tartu, Estonia^2

关键词: Precursor composition;    Precursor concentration;    Separation methods;    Solvent polarity;    Superhydrophobic;    Surface feature;    Surface pattern;    Surface patterning methods;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/49/1/012035/pdf
DOI  :  10.1088/1757-899X/49/1/012035

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

We have studied the effect of different coating methods and precursor compositions on the size, surface density and shape of round surface structures prepared by phase separation-based surface patterning method with potential application in preparing superhydrophobic optically functional structural coatings. Increase in solvent polarity resulted in larger micro-and nanosize surface features. Variation in precursor concentration and extent of initial polymerization were shown to result in different surface densities and geometries of formed features. The effect of different surface patterns on wettability was evaluated by WCA measurements.