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arXiv · 1604.02686

Temperature dependence of elastocaloric effect in natural rubber

Zhongjian Xie·Gael Sebald·Daniel Guyomar
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Abstract

The temperature dependence of the elastocaloric (eC) effect in natural rubber (NR) is studied adiabatically and isothermally. A broad temperature span for eC effect from 0 oC to 49 oC is observed. The maximum adiabatic temperature change ({\Delta}T) is 12 K at strain of 6 and occurs at 10 oC. These behaviors can be predicted by the temperature dependence of strain-induced crystallization (SIC) and temperature-induced crystallization (TIC). In isothermal condition, the deduced {\Delta}T from Clausius-Clapeyron factor can agree with the direct measurement at different temperatures. The eC performance of NR is compared with shape memory alloys (SMAs). The potential of NR for a near room temperature cooing application is primarily proved. This will open the SIC research of NR towards eC cooling direction.

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Zhongjian Xie, Gael Sebald, Daniel Guyomar. 2016-04-10. Temperature dependence of elastocaloric effect in natural rubber. https://doi.org/10.1016/j.physleta.2017.02.014

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