Bubble adhesion on hydrophobic surfaces in solutions of pure and technical grade ionic surfactants

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F17%3A43913593" target="_blank" >RIV/60461373:22340/17:43913593 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0927775717302601" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0927775717302601</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.colsurfa.2017.03.024" target="_blank" >10.1016/j.colsurfa.2017.03.024</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bubble adhesion on hydrophobic surfaces in solutions of pure and technical grade ionic surfactants

Popis výsledku v původním jazyce

The attachment of bubbles onto a collecting surface plays a critical role in many industrial processes. Here, the bubble behaviour is crucially influenced by the presence of surface active agents, where the ionic surfactants are the most common agents. The ionic surfactants very often contain contaminants which, even in trace amounts, could unexpectedly influence the bubble adhesion. This work is focused on an experimental study of bubble adhesion onto the hydrophobic surface in solutions of two ionic surface-active agents (DTAB and SDS) of pure and technical grade purity. The diameters of the three-phase contact line together with bubble dynamic contact angles, dynamic surface tension and dynamic drop contact angles are measured. It was observed that the contaminants decrease the ability of bubbles to attach to solid surfaces when compared with the mono-surfactant solution. The influence of contaminants is crucial below the critical micelle concentration of the main surfactant and it may even happen that the capture of bubbles is avoided. ? 2017 Elsevier B.V.

Název v anglickém jazyce

Bubble adhesion on hydrophobic surfaces in solutions of pure and technical grade ionic surfactants

Popis výsledku anglicky

The attachment of bubbles onto a collecting surface plays a critical role in many industrial processes. Here, the bubble behaviour is crucially influenced by the presence of surface active agents, where the ionic surfactants are the most common agents. The ionic surfactants very often contain contaminants which, even in trace amounts, could unexpectedly influence the bubble adhesion. This work is focused on an experimental study of bubble adhesion onto the hydrophobic surface in solutions of two ionic surface-active agents (DTAB and SDS) of pure and technical grade purity. The diameters of the three-phase contact line together with bubble dynamic contact angles, dynamic surface tension and dynamic drop contact angles are measured. It was observed that the contaminants decrease the ability of bubbles to attach to solid surfaces when compared with the mono-surfactant solution. The influence of contaminants is crucial below the critical micelle concentration of the main surfactant and it may even happen that the capture of bubbles is avoided. ? 2017 Elsevier B.V.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20402 - Chemical process engineering

Projekt

<a href="/cs/project/LD13025" target="_blank" >LD13025: Vliv povrchově aktivních látek na interakce bublin a částic</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Colloids and Surfaces A: Physicochemical and Engineering Aspects

ISSN

0927-7757

e-ISSN

—

Svazek periodika

522

Číslo periodika v rámci svazku

JUN 5 2017

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

485-493

Kód UT WoS článku

000404491600055

EID výsledku v databázi Scopus

2-s2.0-85016391200