Topic
Sessile drop technique
About: Sessile drop technique is a research topic. Over the lifetime, 2827 publications have been published within this topic receiving 68943 citations.
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TL;DR: In this paper, a novel technique is presented for the determination of interfacial tension by analysis of axisymmetric fluid drop profiles, which couples recent developments in digital image acquisition and processing with modern methods for robust shape comparison.
152 citations
TL;DR: In this paper, a concept of reactive wetting has been formulated which suggests a direct relation between wetting and physicochemical properties of the interfacial reaction products of the CuAg-Ti/alumina system, which is more complex but important in brazing.
151 citations
TL;DR: In this article, the sessile drop and the captive bubble methods were compared for the DDS GR 61 membrane, and the contact angle data were compared with Hansen's solubility data.
151 citations
TL;DR: In this article, the influence of the electrical double layer at the polymer/solution interface has been neglected in the past because the overall interfacial capacitance is mainly determined by the capacitance of the insulating polymer layer.
Abstract: Electrowetting (wetting under the influence of an applied electric field) of three fluoropolymer surfaces (amorphous Teflon, DuPont) by electrolyte solutions was studied with the sessile drop method. The electrowetting curve (contact angle/potential) is analogous to the electrocapillary curve (surface tension/potential) and may be described by a combination of the Young and Lippmann equations. The influence of the electrical double layer at the polymer/solution interface has been neglected in the past because the overall interfacial capacitance is mainly determined by the capacitance of the insulating polymer layer. We demonstrate that for some surfaces a systematic deviation occurs at positive potentials. This departure from the constant capacitance regime is attributed to double layer effects, namely, the adsorption of hydroxide and halide anions. The pH, ionic strength, and polymer composition can all influence electrowetting behavior.
151 citations
TL;DR: In this article, the NH 3 plasma treatment was applied to polypropylene hollow fiber microporous membranes (PPHFMMs) in a membrane bioreactor (MBR) for wastewater treatment.
150 citations