The preparation and characterization of chitosan/poly (vinyl alcohol) blended films : mechanical, thermal and surface investigations [PDF]
, 2010 In this study, blends of chitosan (CS) and polyvinyl alcohol (PVA) (CS/PVA) having various proportions were prepared and characterized by universal mechanical tester, the differential scanning calorimetry (DSC) and contact angle measurements.
El Sayed Nasef, Mohamed Mahmoud +2 more
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The contact angle in inviscid fluid mechanics [PDF]
, 2004 We show that in general, the specification of a contact angle condition at the contact line in inviscid fluid motions is incompatible with the classical field equations and boundary conditions generally applicable to them.
Kidambi, R, Shankar, P N
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A simple method to create superhydrophobic aluminium surfaces [PDF]
, 2012 Superhydrophobic surfaces were prepared using a very simple and low-cost method by spray coating. A high static water contact angle of about 154° was obtained by deposition of stearic acid on an aluminium alloy.
Farzaneh, Masoud, Jafari, Reza
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Precise Static Contact Angle Measurements Using Pythagolas Rule
Adhesion and Interface, 2014 Pythagolas rule was used for investigation of static contact angle in particular figures. Static contact angle measurement was important to evaluate the wettability between solid and liquid. Optimum measurement method and standardization of calculation for static contact angle were investigated for practical application. Optimum diameter of droplet for
Jin-Yeong Choi +4 more
openaire +2 more sources
Investigation of drop dynamic contact angle on copper surface
EPJ Web of Conferences, 2015 This paper presents experimental results of the studying the effect of surface roughness, microstructure and flow rate on the dynamic contact angle at spreading of distilled non deaerate water drop on a solid horizontal substrates. Copper substrates with
Orlova Evgenija +2 more
doaj +1 more source
Deformation of a nearly hemispherical conducting drop due to an electric field: theory and experiment [PDF]
, 2014 We consider, both theoretically and experimentally, the deformation due to an electric field of a pinned nearly-hemispherical static sessile drop of an ionic fluid with a high conductivity resting on the lower substrate of a parallel plate capacitor ...
Adamson A. W. +10 more
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Thermal and plasma-enhanced atomic layer deposition of yttrium oxide films and the properties of water wettability [PDF]
, 2020 The atomic layer deposition (ALD) of yttrium oxide (Y2O3) is investigated using the liquid precursor Y(EtCp)2(iPr-amd) as the yttrium source with thermal (H2O) and plasma-enhanced (H2O plasma and O2 plasma) processes, respectively.
Dendooven, Jolien +4 more
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A Modified Contact Angle Measurement Process to Suppress Oil Drop Spreading and Improve Precision
Molecules, 2022 Static contact angle measurement is a widely applied method for wettability assessment. Despite its convenience, it suffers from errors induced by contact angle hysteresis, material heterogeneity, and other factors.
Xiao Deng +5 more
doaj +1 more source
Evaluation of pressure-stiffness coupling in brush seals [PDF]
, 2010 Brush seals are comprised of fine diameter fibers densely packed between retaining and backing plates. To achieve seal compliance bristles are arranged to contact rotor with some lay angle.
Aksit, Mahmut Faruk +2 more
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Static contact angle measurement at different volumes of a drop sitting on non-ferrous metals
MATEC Web of Conferences, 2016 The paper presents the experimental study of the effect of the liquid volume on the static contact angle under the condition of the stationary contact line on the rough and polished surfaces of non-ferrous metals.
Feoktistov Dmitriy +3 more
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