Temperature dependence of elastocaloric effect in natural rubber

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 (ΔT) 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 ΔT 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.

Natural rubber (NR) can solve the problems emerging in the current caloric materials. The potential of NR used for near room temperature cooling application is predicted by temperature dependence of strain-induced crystallization (SIC) and is proved by direct measurement. This will open the SIC research towards eC cooling direction

References in corpus (2)

• Elastocaloric effect associated with the martensitic transition in shape-memory alloys
• Mechanocaloric effects in Shape Memory Alloys

Cited by in corpus (5)

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• Elastocaloric effect in amorphous polymer networks undergoing mechanotropic phase transitions
• Enhanced Elastocaloric Effects in γ-graphyne
• Potential improvement for elastocaloric performances of shape memory alloys through comparing with natural rubber