Measurement of Viscoelastic Characteristics of Interfacial Layers on Liquid Surfaces Using New Experimental Equipment
| Autor: | A. Ya. Malkin, Valery G. Kulichikhin, A. V. Semakov, E. I. Frenkin |
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| Rok vydání: | 2019 |
| Předmět: |
Liquid surfaces
Surface (mathematics) chemistry.chemical_classification Materials science 010304 chemical physics Plane (geometry) 02 engineering and technology Surfaces and Interfaces Polymer 021001 nanoscience & nanotechnology Kinetic energy 01 natural sciences Viscoelasticity Moduli Condensed Matter::Soft Condensed Matter Colloid and Surface Chemistry chemistry 0103 physical sciences Dynamic modulus Physical and Theoretical Chemistry Composite material 0210 nano-technology |
| Zdroj: | Colloid Journal. 81:681-686 |
| ISSN: | 1608-3067 1061-933X |
| DOI: | 10.1134/s1061933x19060097 |
| Popis: | The viscoelastic characteristics (frequency dependences of the components of the two-dimensional complex dynamic modulus) of interfacial layers formed by polymer solutions on liquid surfaces are measured using a newly-designed instrument. The operation of the instrument is based on the use of a Langmuir trough and a new fast-response system for precise measurement of forces in a surface plane at Boussinesq numbers smaller than ten. Examples are presented to illustrate the abilities of the instrument: the measurement of dilatational dynamic elasticity moduli, the determination of the kinetic parameters of polymer solution spreading at interfaces, and the measurement of the moduli for layers of polymer solutions with different concentrations on solvent surfaces in compression–expansion cycles. |
| Databáze: | OpenAIRE |
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