Journal ArticleDOI
Long-living, stress- and pH-tolerant superhydrophobic silica particles via fast and efficient urethane chemistry; facile preparation of self-recoverable SH coatings
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TLDR
In this paper, super-hydrophobic (SH) and water-rolling oligomer wrapped silica particles (OWS) were synthesized using a one-step method by employing the quick and efficient silanol-isocyanate surface reaction.Abstract:
Superhydrophobic (SH) and water-rolling oligomer wrapped silica particles (OWS) were synthesized using a one-step method by employing the quick and efficient silanol–isocyanate surface reaction. The presence of urethane/allophanate linkages and oligomer formation over the silica surface was confirmed using FTIR and MALDI-TOF-MS analyses. The thin coating of the particles displayed a static contact angle of >160°, a roll-off angle of ∼3° and exhibited a micro-nano structure as shown in the FESEM images. The OWS particles are tolerant to variations in pH either side of the pH scale, from 1 to 13, exhibiting water roll-off properties when exposed to harsh acidic and basic conditions. The pH tolerance was observed after mechanical damage. The rapidity and efficiency of the method was demonstrated with a low extent of grafting also. The superhydrophobic particles are long-living as they retained SH properties in different pH conditions even after one year of continuous exposure to ambient conditions. Furthermore, the SH particles with an incorporated cross-linked poly(dimethylsiloxane) coating displayed excellent pH and stress resistance. Surprisingly, the SH coating exhibits self-recoverable superhydrophobicity without an external stimulus (under ambient conditions) or heat treatment after water impalement, pH, boiling water and stress tests.read more
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Roles of silanes and silicones in forming superhydrophobic and superoleophobic materials
TL;DR: In this article, the roles of silanes and silicones in constructing micro-/nanostructures, decreasing the surface energy and/or as binders for the fabrication of super-hydrophobic and superoleophobic surfaces.
Journal ArticleDOI
A versatile and efficient method to fabricate durable superhydrophobic surfaces on wood, lignocellulosic fiber, glass, and metal substrates
TL;DR: In this article, a method was developed to fabricate durable, super-hydrophobic surfaces on various substrates, including wood, lignocellulosic fibers, cotton textiles, glass, and metals.
Journal ArticleDOI
Biomimetic super durable and stable surfaces with superhydrophobicity
TL;DR: In this paper, the subject of prolonging lifetime of superwetable surfaces is comprehensively discussed by means of analyzing the breakdown mechanism, which is influenced by the parameters of surface structures.
Journal ArticleDOI
Facile preparation of a mechanically robust superhydrophobic acrylic polyurethane coating
TL;DR: In this paper, an acrylic polyurethane (SAPU) coating with good abrasion resistance and stable adhesion was obtained after cross-linking with polyisocyanate at room temperature.
Journal ArticleDOI
Synthesis of pH and UV dual-responsive microcapsules with high loading capacity and their application in self-healing hydrophobic coatings
TL;DR: In this paper, a simple and facile method to synthesize pH and UV dual-responsive microcapsules by UV-initiated polymerization of Pickering emulsions stabilized with SiO2 and TiO2 nanoparticles is presented.
References
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Journal ArticleDOI
Biophysics: Water-repellent legs of water striders
Xuefeng Gao,Lei Jiang +1 more
TL;DR: It is shown that it is the special hierarchical structure of the legs, which are covered by large numbers of oriented tiny hairs (microsetae) with fine nanogrooves, that is more important in inducing this water resistance.
Journal ArticleDOI
Self-cleaning surfaces - virtual realities
TL;DR: Key advances in the understanding and fabrication of surfaces with controlled wetting properties are about to make the dream of a contamination-free (or 'no-clean') surface come true.
Journal ArticleDOI
What do we need for a superhydrophobic surface? A review on the recent progress in the preparation of superhydrophobic surfaces
TL;DR: This critical review focuses on the recent progress (within the last three years) in the preparation, theoretical modeling, and applications of superhydrophobic surfaces.
Journal ArticleDOI
Design and Creation of Superwetting/Antiwetting Surfaces
Xinjian Feng,Lei Jiang +1 more
TL;DR: In this paper, a survey of the recent achievements in the construction of surfaces with special wettabilities, such as superhydrophobicity, super-hydrophilicity and superoleophobicity, are presented.
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Candle Soot as a Template for a Transparent Robust Superamphiphobic Coating
TL;DR: An easily fabricated, transparent, and oil-rebounding superamphiphobic coating is designed, based on low-energy surfaces and roughness on the nano- and micrometer scales.