Title: Non-destructive analysis and express control of technological processing of polymer compositions: I. The combined right torsion pendulum method

Authors: M. Mateev, I. Peruhov

Addresses: Department of Experimental Physics, Plovdiv University, Tsar Assen str. 24,4000 Plovdiv, Bulgaria. ' Department of Physics and Mathematics, High Agricultural Institute, Mendeleev str. 12,4000 Plovdiv, Bulgaria

Abstract: A non-destructive analysis and express control of the technological processing of polymers has been proposed. An automatic device has been constructed, which allows the simultaneous determination of the viscoelastic functions Φ*_η-Ε over the complete spectrum of characteristic physical states in an extended interval of the experimentally defined values of the dynamic torsion modulus G′ in order of l0³ up to 10¹¹ Pa. A combined system, called the combined right torsion pendulum, has been applied, using the principle of the right torsion pendulum, where the total loading over the material on the part of the inertial disc has been taken from a high modulus elastic bearing and thus the polymers have been researched in absence of longitudinal loading.

Keywords: nondestructive analysis; polymers; polymer compositions; viscoelastic functions; polymer processing; torsion pendulum; high modulus elastic bearing; longitudinal loading.

DOI: 10.1504/IJMPT.1997.036357

International Journal of Materials and Product Technology, 1997 Vol.12 No.2/3, pp.148 - 161

Published online: 02 Nov 2010 *

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