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Evaluation of natural rubber specific heat capacity at high pressures from DSC experimental data at atmospheric pressure

Authors

  • P. Ortiz-Serna,

    Corresponding author
    1. Departamento de Termodinámica Aplicada, E.T.S.I.I., Instituto de Tecnología Eléctrica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
    • Departamento de Termodinámica Aplicada, E.T.S.I.I., Instituto de Tecnología Eléctrica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
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  • R. Díaz-Calleja,

    1. Departamento de Termodinámica Aplicada, E.T.S.I.I., Instituto de Tecnología Eléctrica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
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  • M. J. Sanchis

    1. Departamento de Termodinámica Aplicada, E.T.S.I.I., Instituto de Tecnología Eléctrica, Universitat Politècnica de València, Camino de Vera s/n, 46022 Valencia, Spain
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Abstract

The natural rubber specific heat capacity dependence on pressure was estimated on thermodynamic grounds on the basis of the values empirically determined from differential scanning calorimetry data, (in the temperature range of −70 to 50°C), and by means of the Tait equation of state (in the pressure range of 0.1–240 MPa). It was found that the specific heat capacity decreases with pressure, being the dependency more pronounced at low pressures. © 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2013

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