Abstract
A method is considered for measuring the dynamic mechanical characteristics of polyer systems using forced vibrations in the ultralow-frequency region down to 10−6 Hz. The essence of this method lies in the fact that during the measurement process the motion of the polymer sample is controlled with a set amplitude and frequency, and the dynamic characteristics of the polymer are determined from the controlling mechanical stress. The method is illustrated using the results of measurements of the components of the complex modulus for polybutadiene over a wide range of temperatures and frequencies without making use of superimposition.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
T. E. Morrison, L. J. Zapas, and T. W. De Witt, "Apparatus for low-frequency dynamic measurements on polymer systems," Rev. Sci. Instr.,26, 357 (1955).
R. P. Forgach, "Improved construction of a torsional viscosimeter for the investigation of polymers," Instr. for Sci. Investig., No. 3, 53–60 (1965).
M. V. Meerov, The Synthesis of the Structures of Systems for Highly Accurate Automatic Control [in Russian], 2nd ed., Moscow (1967).
D. Siu and A. Meier, The Contemporary Theory of Automatic Control and Its Application [Russian translation], Moscow (1972).
Additional information
The Central Constructional Bureau for Prototype Instrument Construction, Academy of Sciences of the USSR, Moscow. Translated from Mekhanika Polimerov, No. 2, pp. 344–347, March–April, 1976.
Rights and permissions
About this article
Cite this article
Ul'yanov, L.P. A new method of measuring the viscoelastic properties of polymer systems in fluid and highly elastic states using forced vibrations in the ultralow-frequency region. Polymer Mechanics 12, 299–302 (1976). https://doi.org/10.1007/BF00856469
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00856469