Abstract
The temperature changes as a result of rapid hydrostatic pressure applications are reported for high density polyethylene (HDPE) and low density polyethylene (LDPE) in the reference temperature range from 298 to 423 K and in the pressure range from 13.8 to 200 MN m−2. The adiabatic temperature changes were found to be a function of pressure and temperature. A curve fitting analysis showed that the empirical curve (∂/∂P) =ab(ΔP)b−1 described the experimental thermoelastic coefficients obtained from the experiments. The data were analyzed by determining the predicted thermoelastic coefficients derived from the Thomson equation (∂/∂P)θ = αT 0/ϱC p. The experimental and predicted Grüneisen parameter γ T were also determined.
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Rodriguez, E.L., Filisko, F.E. Thermal effects in high density polyethylene and low density polyethylene at high hydrostatic pressures. J Mater Sci 22, 1934–1940 (1987). https://doi.org/10.1007/BF01132919
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DOI: https://doi.org/10.1007/BF01132919