Feucht DC, Hofmann MJ, Motschmann H. Simultaneous measurement of the thickness and the lifetime of a foam lamella.
THE REVIEW OF SCIENTIFIC INSTRUMENTS 2019;
90:124102. [PMID:
31893854 DOI:
10.1063/1.5119192]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 10/19/2019] [Indexed: 06/10/2023]
Abstract
Despite the important role of foams in industrial applications, few methods for determining the stability are present. By extending the existing light reflection-based apparatus, additional information about a single foam lamella can be obtained. Evaluation of these data delivers insight into the thinning process of the lamella. The potential of this technique is shown for the analysis of two surfactants with different head group lengths (Lutensol XP 100 and Lutensol XP 140).
Collapse