... with markedly improved surface hydrophilicity (water contact angle reduced to 6.7°) and a smoother, more homogeneous polyamide-polyester separation layer. The optimized PA-Z-PDEOA NF membrane had a water flux 3.4 times that of the original PA NF membrane. Meanwhile, the MgSO₄ rejection rate...

... 08 07 2021 ICE Publishing: All rights reserved 2022 contact angle hydrophilic hydrophobic A, B, C, D, E, F fitting coefficients a, b coefficients Bo Bond number f ellipse...

... was first mixed with 100 ml of ‘HSO EN Evolution L’ and dispersed in an ultrasonic bath for 5 min. This dispersion was added at room temperature to the remaining electrolyte, followed by heating to the operating temperature of 80°C. hydrophilic plasmas protective coating...

... with both treatments contributed to an increase in hydrophilicity as determined by advancing water contact angle measurements. A greater increase in hydrophilicity was observed for the UV photooxidized PEN samples. Initial results showed a slight increase in hydrophilicity when acrylic acid was grafted onto...

...Xuming Wang, PhD; Xihui Yin, PhD; Jakub Nalaskowski, PhD; Hao Du, PhD; Jan D. Miller, PhD Sum frequency vibrational spectroscopy (SFVS) spectra indicate that a very ordered water structure exists in the stable water film at a hydrophilic silica surface during contact with a bubble...

...-mail address:   jwdrelic@mtu.edu 16 07 2013 02 10 2013 ICE Publishing: All rights reserved 2014 contact angle hydrophilic hydrophobic superhydrophilicity superhydrophobicity wetting Notation list f_i Fractional area of a component i...

...Jan Zawala, PhD; Dominik Kosior, PhD; Kazimierz Malysa, DSc The article presents experimental results and numerical simulations on influence of air presence at hydrophilic porous surface (fritted glass filter) on kinetics of the bubble collisions and bouncing. Phenomena occurring during collisions...

... using scanning electron microscopy, atomic force microscopy, water contact angle measurement and X-ray photoelectron spectroscopy (XPS). Plasma treatment decreased the water contact angle. Sodium hydroxide treatment further improved the hydrophilicity and increased the surface roughness. XPS analysis...

... are varied to modulate the surface wettability of the composite coatings. These variations resulted in surfaces with hydrophilic, hydrophobic, superhydrophobic and sticky hydrophobic properties. The coatings are characterized for contact angle, sliding angle, surface roughness, hardness and adhesion...