Instrument for Measurement of Interfacial Structure-Property Relationships with Decoupled Interfacial Shear and Dilatational Flow: "Quadrotrough"

Published

September 20, 2022

Author(s)

Y. Tein, Benjamin Thompson, Charles Majkrzak, Brian B. Maranville, Damian Renggli, Jan Vermant, Norman J. Wagner

Abstract

Understanding the interfacial structure-property relationship of complex fluid-fluid interfaces is increasingly important for guiding the formulation of systems with targeted interfacial properties, such as found in multiphase complex fluids, biological systems, biopharmaceuticals formulations and many consumer products. Mixed interfacial flow fields, typical of classical Langmuir trough experiments, introduce a complex interfacial flow history that complicates the study of interfacial properties of complex fluid interfaces. In this manuscript, we describe the design, implementation, and validation of a new instrument capable of independent application of controlled interfacial dilation and shear kinematics on fluid interfaces. Combining the Quadrotrough with both in situ Brewster angle microscopy and neutron reflectometry provides detailed structural measurements of the interface at the mesoscale and nanoscale in relationship to interfacial material properties under controlled interfacial deformation histories.

Citation

Review of Scientific Instruments

Volume

93

Issue

9

Pub Type

Journals

Download Paper

DOI Link

Keywords

interfacial rheology, 2d soft materials, complex fluid interfaces, neutron reflectometry, sample environment, instrument development

Citation

Tein, Y. , Thompson, B. , Majkrzak, C. , Maranville, B. , Renggli, D. , Vermant, J. and Wagner, N. (2022), Instrument for Measurement of Interfacial Structure-Property Relationships with Decoupled Interfacial Shear and Dilatational Flow: "Quadrotrough", Review of Scientific Instruments, [online], https://dx.doi.org/10.1063/5.0090350 (Accessed January 23, 2025)