Evaluation of Natural Rubber Specific Heat Capacity at High Pressures from DSC Experimental Data at Atmospheric Pressure

Ortiz Serna María Pilar, Díaz Calleja Ricardo, Sanchis Sánchez María Jesús

2012

Journal of Applied Polymer Science

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.