Surface activity and foaming properties of saponin-rich plants extracts

2020 ◽  
Vol 279 ◽  
pp. 102145 ◽  
Author(s):  
Ilona Góral ◽  
Kamil Wojciechowski
Keyword(s):  
Surface Activity ◽  
Foaming Properties

Facile synthesis, surface activity, wettability and ultrahigh foaming properties of novel nonionic Gemini fluorocarbon surfactants

2020 ◽  
Vol 302 ◽  
pp. 112469 ◽  
Author(s):  
Cai-Lian Chen ◽  
Yi-Fan Liao ◽  
Feng Lu ◽  
Yu-Sen Zheng ◽  
Ying-Ying Peng ◽  
...  
Keyword(s):  
Surface Activity ◽  
Foaming Properties ◽  
Facile Synthesis

Functional surfaces produced by foam coating

TAPPI Journal ◽  
2016 ◽  
Vol 15 (8) ◽  
pp. 515-521 ◽  
Author(s):  
EIJA KENTTÄ ◽  
HANNA KOSKELA ◽  
SARA PAUNONEN ◽  
KARITA KINNUNEN-RAUDASKOSKI ◽  
TUOMO HJELT
Keyword(s):  
Life Time ◽  
Silica Coating ◽  
Foaming Properties ◽  
Coated Paper ◽  
Paper Properties ◽  
Foaming Agent ◽  
Foaming Agents ◽  
Size Stability ◽  
Stability Measurement ◽  
Standard Paper

This paper reports experiments on silica coating formulations that are suitable for application as a thin pigment layer with foam coating technique on a paper web. To understand the foaming properties of nanosilica dispersions, the critical micelle concentration, foam half-life time, and foam bubble size stability were determined with three different foaming agents. The results indicate that the bubble stability measurement is a useful characterization method for foam coating purposes. Pilot foam coating trials were done and the effects of the chosen foaming agents were studied on the properties of the nanosilica-coated paper. The surface hydrophilicity of silica coated paper was related not only to silica pigment, but also to the chemical nature of the foaming agent. Standard paper properties were not affected by the thin silica coating.

Influence of Partial Blocking of the Electrode Surface on the Transfer Coefficients

1993 ◽  
Vol 58 (3) ◽  
pp. 496-505
Author(s):  
Ondřej Wein
Keyword(s):  
Surface Activity ◽  
Elliptic Problem ◽  
Electrode Surface ◽  
Driving Force ◽  
Two Dimensional ◽  
Transfer Coefficients ◽  
Constant Potential ◽  
Numeric Solution ◽  
Active Zones ◽  
Partial Blocking

Partial blocking of the transport surface under the stagnant (nerst) layer is simulated by periodically alternating bands of perfectly insulating zones and active zones with a constant potential of driving force. The numeric solution of the corresponding two-dimensional elliptic problem is represented by a simple empirical correlation for the transfer coefficients. The result is interpreted in terms of a simple electrochemical problem about limiting diffusion currents at electrodes with non-uniform surface activity.

Betaine and l-carnitine ester bromides: Synthesis and comparative study of their thermal behaviour and surface activity

2021 ◽  
Vol 334 ◽  
pp. 115988
Author(s):  
Angelica Mero ◽  
Andrea Mezzetta ◽  
Janusz Nowicki ◽  
Justyna Łuczak ◽  
Lorenzo Guazzelli
Keyword(s):  
Comparative Study ◽  
Surface Activity ◽  
Thermal Behaviour
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