Interfacial Tension Sensor for Low Dosage Surfactant Detection

Interfacial Tension Sensor for Low Dosage Surfactant Detection

Currently there are no available methods for in-line measurement of gas-liquid interfacial tension during the flotation process. Microfluidic devices have the potential to be deployed in such settings to allow for a rapid in-line determination of the interfacial tension, and hence provide informatio...

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Main Authors: Piotr Pawliszak, Bronwyn H. Bradshaw-Hajek, Christopher Greet, William Skinner, David A. Beattie, Marta Krasowska
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Colloids and Interfaces
Subjects:
interfacial tension
frothers
microfluidics
bubble generation frequency
Online Access:https://www.mdpi.com/2504-5377/5/1/9
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spelling doaj-6f38d134cf3f4a93b3924252ef7a225e2021-02-04T00:03:32ZengMDPI AGColloids and Interfaces2504-53772021-02-0159910.3390/colloids5010009Interfacial Tension Sensor for Low Dosage Surfactant DetectionPiotr Pawliszak0Bronwyn H. Bradshaw-Hajek1Christopher Greet2William Skinner3David A. Beattie4Marta Krasowska5Future Industries Institute, University of South Australia, Mawson Lakes, SA 5095, AustraliaUniSA STEM, University of South Australia, Mawson Lakes, SA 5095, AustraliaResearch Laboratory, Magotteaux Australia Pty Ltd., Wingfield, SA 5013, AustraliaFuture Industries Institute, University of South Australia, Mawson Lakes, SA 5095, AustraliaFuture Industries Institute, University of South Australia, Mawson Lakes, SA 5095, AustraliaFuture Industries Institute, University of South Australia, Mawson Lakes, SA 5095, AustraliaCurrently there are no available methods for in-line measurement of gas-liquid interfacial tension during the flotation process. Microfluidic devices have the potential to be deployed in such settings to allow for a rapid in-line determination of the interfacial tension, and hence provide information on frother concentration. This paper presents the development of a simple method for interfacial tension determination based on a microfluidic device with a flow-focusing geometry. The bubble generation frequency in such a microfluidic device is correlated with the concentration of two flotation frothers (characterized by very different adsorption kinetic behavior). The results are compared with the equilibrium interfacial tension values determined using classical profile analysis tensiometry.https://www.mdpi.com/2504-5377/5/1/9interfacial tensionfrothersmicrofluidicsbubble generation frequency
collection DOAJ
language English
format Article
sources DOAJ
author Piotr Pawliszak
Bronwyn H. Bradshaw-Hajek
Christopher Greet
William Skinner
David A. Beattie
Marta Krasowska
spellingShingle Piotr Pawliszak
Bronwyn H. Bradshaw-Hajek
Christopher Greet
William Skinner
David A. Beattie
Marta Krasowska
Interfacial Tension Sensor for Low Dosage Surfactant Detection
Colloids and Interfaces
interfacial tension
frothers
microfluidics
bubble generation frequency
author_facet Piotr Pawliszak
Bronwyn H. Bradshaw-Hajek
Christopher Greet
William Skinner
David A. Beattie
Marta Krasowska
author_sort Piotr Pawliszak
title Interfacial Tension Sensor for Low Dosage Surfactant Detection
title_short Interfacial Tension Sensor for Low Dosage Surfactant Detection
title_full Interfacial Tension Sensor for Low Dosage Surfactant Detection
title_fullStr Interfacial Tension Sensor for Low Dosage Surfactant Detection
title_full_unstemmed Interfacial Tension Sensor for Low Dosage Surfactant Detection
title_sort interfacial tension sensor for low dosage surfactant detection
publisher MDPI AG
series Colloids and Interfaces
issn 2504-5377
publishDate 2021-02-01
description Currently there are no available methods for in-line measurement of gas-liquid interfacial tension during the flotation process. Microfluidic devices have the potential to be deployed in such settings to allow for a rapid in-line determination of the interfacial tension, and hence provide information on frother concentration. This paper presents the development of a simple method for interfacial tension determination based on a microfluidic device with a flow-focusing geometry. The bubble generation frequency in such a microfluidic device is correlated with the concentration of two flotation frothers (characterized by very different adsorption kinetic behavior). The results are compared with the equilibrium interfacial tension values determined using classical profile analysis tensiometry.
topic interfacial tension
frothers
microfluidics
bubble generation frequency
url https://www.mdpi.com/2504-5377/5/1/9
work_keys_str_mv AT piotrpawliszak interfacialtensionsensorforlowdosagesurfactantdetection
AT bronwynhbradshawhajek interfacialtensionsensorforlowdosagesurfactantdetection
AT christophergreet interfacialtensionsensorforlowdosagesurfactantdetection
AT williamskinner interfacialtensionsensorforlowdosagesurfactantdetection
AT davidabeattie interfacialtensionsensorforlowdosagesurfactantdetection
AT martakrasowska interfacialtensionsensorforlowdosagesurfactantdetection
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