Superhydrophobic and oleophobic surfaces fabricated from incompletely condensed polyhedral oligomeric silsesquioxane

A review on ‘self-cleaning and multifunctional materials’

“…The presence of surface microstructures and nanoporosites were the reason responsible for superoleophobic property. Dong et al 195 investigated water and oil wettabilities of silica surfaces modified with hierarchical POSS. A mono substituted FPOSS (fluorinated POSS) was synthesized and silica particles were decorated with POSS nanocages by one-pot reaction.…”

One-step fabrication of highly stable, superhydrophobic composites from controllable and low-cost PMHS/TEOS sols for efficient oil cleanup

“…Within these contexts, it has been demonstrated that superhydrophobic surfaces can be achieved by combining hierarchical micro/nano-structure and low surface energy [21][22][23][24]. Accordingly, if those functional materials with superhydrophobic and superoleophilic surface were successfully designed, they would have promoted oil flow through selectively and repelled water strongly, possibly leading to high efficiency and excellent selectivity to oily substances [25][26][27][28][29].…”

Superhydrophobic oleophobic PDMS-silica nanocomposite coating

“…In recent years, there has been several publications on the fabrication and applications of SH surfaces as well as studies related to the mechanism of wettability and the correlation to surface roughness and surface energy. [1][2][3][4][5][6][7][8][9][10][11][12][13] The wettability of a solid surface depends both on the surface chemical composition and on the surface geometrical microstructures. 3 On the basis of this principle, artificial SH surfaces have been manufactured using top-down and bottom-up methods.…”

“…6 Several authors have shown that it is possible to obtain SH surfaces by incorporating nanoparticles and low surface energy materials in a suitable polymer matrix. [7][8][9][10][11][14][15][16][17][18][19][20][21][22][23] SH surfaces have been produced on the stone surface of monuments by using siloxane-silica nanoparticle dispersion. 7 Huang et al reported a new method for producing PDMS reinforced with SH nanosilica by using hexadecyltrimethoxysilane for hydrophobization.…”

“…It has been reported that oil-repellent SH surfaces can be obtained by modifying the surfaces with fluorochemicals and fluoropolymers resulting in considerable decrease in surface energy. [9][10][11][14][15][16][17][18][19][20][21][22][23] For example, SH films containing polyhedral oligomeric silsesquioxane molecules surrounded by perfluoroalkyl groups (FPOSS) have been treated with perfluoro copolymer to obtain oleophobicity. 9,10 The surface energy of functional groups decreases in the following order: −CF 3 < −CF 2 H < −CF 2 < −CH 3 < −CH 2 .…”