Fig. 3.

Thermal properties of various materials. DSC curves of the materials during a heating and b cooling. c Normalized latent heat of fusion for PEG@TPU/BNNS-es with ~ 32 wt% BNNSs, the inset shows the DSC curves for 1st, 10th and 50th thermal cycles of PEG@TPU/BNNS-es. d In-plane thermal conductivity of various PCCs studied in this work, PEG@TPU/BNNS-es 1–3 have a BNNS loading of about 10, 28 and 32 wt%, respectively. e Thermal conductivity versus filler loading of PEG@TPU/BNNS-es and reported PCCs with filler loading < 40 wt% [32, 33, 39–47]. f Thermal conductivity versus latent heat of PEG@TPU/BNNS-es and reported flexible PCCs [32, 33, 41–47]