Fast formation of hydrophilic and reactive polymer micropatterns by photocatalytic lithography method

Chang, Chi‐Jung; Wang, Chih-Feng; Chen, Jem-Kun; Hsieh, Chih-Chiao; Chen, Po–An

doi:10.1016/j.apsusc.2013.09.071

Cited by 16 publications

(6 citation statements)

References 24 publications

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“…The SEM analysis of the coated surface showed the presence of a uniform 3D nano/microstructure (Figure d). It is known that nano/microstructures with hydrophobic surfaces are highly important for producing superhydrophobic surfaces. ,, Because the surface wettability of a material is mainly governed by its multiscale roughness and hydrophobic surface chemistry, a variety of materials (i.e., ZnO, carbon nanotubes, fluorine precursor , ), morphologies, and techniques (i.e., spray casting, soft lithography, sputtering, sol–gel chemistry, nanoparticle assembly) on various substrates (i.e., glass, fabric, steel) have been extensively investigated. The solution-based method is viable with the spray coating method; however, on a large scale, the solution-based method is desirable for substrates with complex dimensions, such as a 3D structure with curvature (inside or outside).…”

Section: Resultsmentioning

confidence: 99%

Solution-Based One-Step Preparation of Three-Dimensional Self-Assembled Octadecyl Silica Nanosquare Plate and Microlamella Structures for Superhydrophobic and Icephobic Surfaces

et al. 2021

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Icephobic surfaces have gained immense attention owing to their significant roles in decreasing the energy consumption of refrigerators and in improving safety issues by preventing the formation of ice on them. Superhydrophobic surfaces incorporating micro- or nanoscale roughness and hydrophobic functional groups have been shown to prevent ice accumulation. Herein, we report a simple, low-cost, and solution-based one-step process for the production of superhydrophobic surfaces with three-dimensional (3D) self-assembled structures. The controlled hydrolysis and polycondensation of n-octadecyltrichlorosilane (OTS-Cl) in an acetone solution produced a highly uniform superhydrophobic surface on various substrates such as glass, metals, and polymers without the limitation of the surface curvature structure. The as-prepared 3D self-assembled surface exhibited a very high contact angle of 161.7° and a low contact hysteresis of 1.47°. The solvent type, H2O content in acetone, and carbon chain length of the silane compound were critical in the formation of self-assembled nanostructures. The thickness of the superhydrophobic 3D self-assembled structure could be varied by controlling the surface properties of the glass substrate. In addition, a novel octadecyl silica nanosquare plate structure was formed as an intermediate for the microlamella structure. The water drop impact experiments on the 3D self-assembled superhydrophobic glass substrates at low temperatures (T < −25 °C) showed that the as-prepared superhydrophobic glass possessed a high impalement threshold for water contact, resulting in excellent and stable icephobic properties. The preparation method proposed in this study is scalable and can be used on a flat glass surface or in a glass vial inside a glass tube. Moreover, it can be applied to various substrates such as metals and polyurethane surfaces with curvature. Therefore, the solution-based self-assembly method proposed in this study is a promising approach to produce superhydrophobic and icephobic surfaces on a wide range of substrates regardless of their structure and properties.

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Section: Resultsmentioning

confidence: 99%

Solution-Based One-Step Preparation of Three-Dimensional Self-Assembled Octadecyl Silica Nanosquare Plate and Microlamella Structures for Superhydrophobic and Icephobic Surfaces

et al. 2021

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“…These micropatterns are formed over substrate by self-assembled monolayers using techniques like soft lithography by decomposing a monolayer with electron beams, atomic force microscopy, photocatalytic lithography, and so on. 121 Previously, the offset printing plate was the most commonly used patterning technique. However, this technique suffered several drawbacks such as (i) single use of aluminum substrate, (ii) generation of chemical waste in the initial stage, and (ii) printing resolution limitation.…”

Section: Materials Used For Synthesis Of Superhydrophobic Surfacesmentioning

confidence: 99%

“…This technique has gained significant popularity during the past few years to pattern various TiO 2 microstructures. These micropatterns are formed over substrate by self-assembled monolayers using techniques like soft lithography by decomposing a monolayer with electron beams, atomic force microscopy, photocatalytic lithography, and so on . Previously, the offset printing plate was the most commonly used patterning technique.…”

Section: Materials Used For Synthesis Of Superhydrophobic Surfacesmentioning

confidence: 99%

Superhydrophobic Surfaces: Insights from Theory and Experiment

2020

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Biomimetic nanosurfaces with distinct wettability and versatility have found special enthusiasm in both fundamental research and industrial applications. With the advent of nanotechnology, it is doable to acclimate surface architecture and surface chemistry to attain superhydrophobicity. The uniqueness of superhydrophobic surfaces arises from various phenomenal advances, and its progress is expected to continue for decades in the future. In this Review Article, we discuss recent progress made in defining physical aspects of numerical modeling, experimental practices adopted, and applications of superhydrophobic surfaces. First, we revisit various classical models of superhydrophobicity and recent theoretical advances achieved related to the wetting phenomena. Subsequently, we emphasize various precursors and advance fabrication strategies adopted to fabricate superhydrophobic surfaces. In the following section, we take up various potential applications and appropriate working principles to explain wettability phenomena. Finally, some general conclusions are drawn along with proposed guidelines for designing robust superhydrophobic coatings.

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“…A. Marmur puts the Wenzel and Cassie-Baxter equations into proper mathematical-thermodynamic perspective and defines the conditions for determining the transition between the homogeneous and heterogeneous wetting regimes [15]. Varies methods have been developed to create the hierarchical structures such as sputtering [16], anodization [17], sol-gel [18], lithography [19], compressed metal powders [20], electrodeposition [21], etc. As for metal substrates, chemical etching is a considerable way to obtain surface roughness.…”

Section: Introductionmentioning

confidence: 99%

Superhydrophobic surface on steel substrate and its anti-icing property in condensing conditions

Wang

Xiong

et al. 2015

Applied Surface Science

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Fast formation of hydrophilic and reactive polymer micropatterns by photocatalytic lithography method

Cited by 16 publications

References 24 publications

Solution-Based One-Step Preparation of Three-Dimensional Self-Assembled Octadecyl Silica Nanosquare Plate and Microlamella Structures for Superhydrophobic and Icephobic Surfaces

Solution-Based One-Step Preparation of Three-Dimensional Self-Assembled Octadecyl Silica Nanosquare Plate and Microlamella Structures for Superhydrophobic and Icephobic Surfaces

Superhydrophobic Surfaces: Insights from Theory and Experiment

Superhydrophobic surface on steel substrate and its anti-icing property in condensing conditions

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