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Determination of the Glass-Transition Temperature of GRPS and CFRPS Using a Torsion Pendulum in Regimes of Freely Damped Vibrations and Quasi-Stastic Torsion of Specimens

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Mechanics of Composite Materials Aims and scope

A method to measure the glass-transition temperature of polymers and polymeric matrices of composite materials with the help of an inverse torsion pendulum over a wide range of temperatures is considered combining the method of free torsional vibrations and a quasi-static torsion of specimens. The glass-transition temperature Tg of a KMKS-1-80. T10 fiberglass, on increasing the frequency of freely damped torsional vibrations from 0.7 to 9.6 Hz, was found to increase from 132 to 140°С. The value of Tg of these specimens, determined by measuring the work of their torsion through a small fixed angle was 128.6°C ± 0.8°C. It is shown that the use of a torsion pendulum allows one to determine the glass-transition temperature of polymeric or polymer matrices of PCMs in dynamic and quasi-static deformation regimes of specimens.

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Authors and Affiliations

  1. G. V. Akimov Gelendzhik Center of ClimaticTests, Krasnoyarsk, Russia

    V. O. Startsev & M. V. Molokov

  2. V. P. Larionov Institute of Physical-Technical Problems of the North, SO RAN, Krasnoyarsk, Russia

    M. P. Lebedev

Authors
  1. V. O. Startsev
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  2. M. P. Lebedev
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  3. M. V. Molokov
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Correspondence to V. O. Startsev.

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Translated from Mekhanika Kompozitnykh Materialov, Vol. 54, No. 1, pp. 21-36 , January-February, 2017.

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Startsev, V.O., Lebedev, M.P. & Molokov, M.V. Determination of the Glass-Transition Temperature of GRPS and CFRPS Using a Torsion Pendulum in Regimes of Freely Damped Vibrations and Quasi-Stastic Torsion of Specimens. Mech Compos Mater 54, 13–22 (2018). https://doi.org/10.1007/s11029-018-9713-0

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  • DOI: https://doi.org/10.1007/s11029-018-9713-0

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