Author:
Zang Du-Yang ,Zhang Yong-Jian , ,
Abstract
We propose a novel approach for the study of rheological properties of silica nanoparticle monolayers at the air-water interface. The layers are deformed by indenting and raising a titanium cone. The surface pressure variations in these down-up cycles are recorded and analysed. The oscillation amplitude of surface pressure d results from the tensile deformation of the particle layer. d and the relaxation time are strongly dependent on the adsorption energy of particles at the interface, thereby significantly changing the particle hydrophobicity. The results provide a deeper insight into the viscoelastic behaviour of particle layer, suggesting that the proposed method can be utilized for the rheological study of the layers of this kind.
Publisher
Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences
Subject
General Physics and Astronomy
Cited by
2 articles.
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