Transparent ultra water-repellent poly(ethylene terephthalate) substrates fabricated by oxygen plasma treatment and subsequent hydrophobic coating

Teshima, Katsuya; Sugimura, Hiroyuki; Inoue, Yasushi; Takai, Osamu; Takano, Atsushi

doi:10.1016/j.apsusc.2004.10.143

Cited by 178 publications

(97 citation statements)

References 11 publications

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“…Various methods have been proposed for the construction of microscopic three-dimensional structures, particularly for the construction of superhydrophobic surfaces. These include the use of fractal structures, 16 solvent evaporation, 17 a sol-gel process, 18 an oxygen plasma treatment, 19 electrochemical deposition, 20,21 seeded growth, 22 deposition of microbeads, 23 and plasma-enhanced chemical-vapor deposition. 24,25 As a new approach, rough surfaces have also been realized with microfabricated structures.…”

Section: Introductionmentioning

confidence: 99%

Electrowetting on gold electrodes with microscopic three-dimensional structures for microfluidic devices

Yokomaku

Satoh

Fukuda

et al. 2008

Journal of Applied Physics

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To improve the performance of electrowetting-based microfluidic devices, we used micropillar structures to enhance the changes in the wettability of gold electrodes. The changes in the contact angle of a sessile drop were influenced by the diameter of the micropillars and interpillar distances. For a potential change between 0 V and −1.0 V, the change of the contact angle of the KCl sessile drop was 41°on a smooth electrode, but 88°on an electrode with micropillars with a 10 m diameter. Furthermore, the existence of the micropillars accelerated the change of the contact angle. The gold electrodes with the micropillars were used to generate the capillary force to mobilize a liquid column in a microflow channel. Compared to a device with a smooth electrode, this device showed a fourfold increase in the flow velocity at −0.9 V. The electrodes were also used as a valve. The ability to stop an intruding solution and the switching speed was improved with the micropillar structure.

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Section: Introductionmentioning

confidence: 99%

Electrowetting on gold electrodes with microscopic three-dimensional structures for microfluidic devices

Yokomaku

Satoh

Fukuda

et al. 2008

Journal of Applied Physics

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“…The distinct absorption peak at 1110 cm −1 is attributed to the stretching vibration of asymmetric Si-O-C bond in the HMDSO plasma polymer of the treated surface of bifacial fabrics, and this peak is found to be much broad, which can be explained by the overlap of Si-O stretching in Si-O-Si bond and Si-O-C stretching at 990-1090 cm −1 as well as the asymmetric stretching of S=O (around 1120 cm −1 ) bond possibly resulting from oxidized disulphide bonds of wool fibre in the oxygen plasma step [46][47][48]. Another new absorption peak in the FTIR spectra of the Since the optimum asymmetric wettability of the bifacial fabric was achieved with 3 min plasma coating, further experiments and analysis were carried out using the 3 min coating.…”

Section: Fabrics With Asymmetric Wettability By Plasmasmentioning

confidence: 95%

Directional Trans-Planar and Different In-Plane Water Transfer Properties of Composite Structured Bifacial Fabrics Modified by a Facile Three-Step Plasma Treatment

et al. 2017

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Fabrics with moisture management properties are strongly expected to benefit various potential applications in daily life, industry, medical treatment and protection. Here, a bifacial fabric with dual trans-planar and in-plane liquid moisture management properties was reported. This novel fabric was fabricated to have a knitted structure on one face and a woven structure on the other, contributing to the different in-plane water transfer properties of the fabric. A facile three-step plasma treatment was used to enrich the bifacial fabric with asymmetric wettability and liquid absorbency. The plasma treated bifacial fabric allowed forced water to transfer from the hydrophobic face to hydrophilic face, while it prevented water to spread through the hydrophobic face when water drops were placed on the hydrophilic face. This confirmed one-way water transport capacity of the bifacial fabric. Through the three-step plasma treatment, the fabric surface was coated with a Si-containing thin film. This film contributed to the hydrophobic property, while the physical properties of the fabrics such as stiffness and color were not affected. This novel fabric can potentially be used to design and manufacture functional and smart textiles with tunable moisture transport properties.

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“…SiO 2 , thin films of ZnO (Zinc Oxide), and indium tin oxide (ITO) are also of interest for various applications. Table 1 provides a summary of reported works on transparent superhydrophobic surfaces [58][59][60][61][62][63][64] fabricated on transparent polymers. However, stretchability and flexibility are also important for many industrial applications.…”

Section: Approaches To Creating Transparent and Flexible Superamphiphmentioning

confidence: 99%

Chemical and Physical Pathways for Fabricating Flexible Superamphiphobic Surfaces with High Transparency

et al. 2018

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Since the discovery of the self-cleaning properties of the lotus effect, the wetting of surfaces were intensively investigated due to their potential application in many industrial sectors. The transparency of flexible liquid repellent coatings are a major industrial problem and their economic consequences are widely known. Hence, a comprehensive understanding of the developments of flexible and transparent superamphiphobic surfaces is required in a number of technological and industrial situations. In this review, we aim to discuss the progress in the design, synthesis, fabrication techniques, and applications of flexible and transparent superamphiphobic surfaces. We start with an introduction, exploring the contact angles and wetting states for superhydrophilic, superhydrophobic, and superoleophobic surfaces, and continue with a review of the wetting transition of such surfaces. Then, we highlight the fabrication techniques involved for the preparation of flexible and transparent superamphiphobic surfaces. This review also discusses the key issues in the fabrication process and surfaces, and their features in improving durability characteristics and self-repellent performance. Then we suggest various recommendations for the improvement of mechanical durability along with potential future directions towards more systematic methods that will also be acceptable for industry. Finally, we conclude with some challenges and potential applications.

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Transparent ultra water-repellent poly(ethylene terephthalate) substrates fabricated by oxygen plasma treatment and subsequent hydrophobic coating

Cited by 178 publications

References 11 publications

Electrowetting on gold electrodes with microscopic three-dimensional structures for microfluidic devices

Electrowetting on gold electrodes with microscopic three-dimensional structures for microfluidic devices

Directional Trans-Planar and Different In-Plane Water Transfer Properties of Composite Structured Bifacial Fabrics Modified by a Facile Three-Step Plasma Treatment

Chemical and Physical Pathways for Fabricating Flexible Superamphiphobic Surfaces with High Transparency

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