Foaming Behavior of Aqueous Solutions: Containing Hexadecyltrimethylammonium Bromide and Silica Nanoparticles: Analysis of Stability and Interfacial Properties - Softcover

Vishal, Badri; Ghosh, Pallab

 
9786139910854: Foaming Behavior of Aqueous Solutions: Containing Hexadecyltrimethylammonium Bromide and Silica Nanoparticles: Analysis of Stability and Interfacial Properties
Softcover
ISBN 10: 6139910854 ISBN 13: 9786139910854
Verlag: LAP LAMBERT Academic Publishing, 2018

Inhaltsangabe

Aqueous foams are of great importance in a large number of applications such as cosmetic items, food products, cleaning agents, and pharmaceuticals. Foams are stabilized by using surfactants and sometimes particles. Their mixture shows a synergetic effect, and therefore, foams are stable for a longer period. Foams are composed of thin liquid films, known as Lamellae. The foam film consists of two air–water interfaces. Therefore, the stability of foams profoundly relies on the stability of the thin liquid films, and consequently on the properties of the air–water interfaces. In this monograph, experimental work was performed on aqueous foams stabilized by a mixture of hexadecyltrimethylammonium bromide (HTAB) and negatively-charged silica nano-particles. The foams and the air–water interfaces were studied by using different techniques. Our key finding was that the foams were more stable at low HTAB concentration in the presence of particles. The presence of the nanoparticles at the air–water interface provided mechanical strength to the foam films and prevented their rupture. This also hindered coalescence of the bubbles, which resulted in a stable foam.

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Über die Autorin bzw. den Autor

Dr. Badri Vishal received his Ph.D. degree from the Department of Chemical Engineering, Indian Institute of Technology Guwahati, India in 2018. His major research interests include applications of colloid and interface science and rheology. Dr. Pallab Ghosh is a professor in the same department.

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Verlag
LAP LAMBERT Academic Publishing
Erscheinungsdatum
2018
Sprache
Englisch
ISBN 10 
6139910854
ISBN 13 
9786139910854
Einband
Taschenbuch
Anzahl der Seiten
208
Kontakt zum Hersteller
Nicht verfügbar
Verantwortliche Person
Fastbook Publishing
customerservice@vdm-vsg.de

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