Tuning the flexibility and thermal storage capacity of solid–solid phase change materials towards wearable applications

Abstract

Polyurethane (PU) based phase change materials (PCMs) undergo the solid-solid phase transition and offer state-of-the-art thermal energy storage (TES). Nevertheless, the exploration of these PCMs in real-life applicable smart devices...

Crystallization induced realignment of carbon fibers in a phase change material to achieve exceptional thermal transportation properties

“…3m. 24,26,48–52 The points representing thermal conductivity versus latent heat of E10A2C10 and E10A2C7 quenched with additional representative data taken from recent literature are plotted together for ease of comparison. The highest thermal conductivity and latent heat in the previous studies are only 5.9 W m −1 K −1 and 202.8 J g −1 , respectively.…”

Processable and recyclable polyurethane/HNTs@Fe3O4 solid–solid phase change materials with excellent thermal conductivity for thermal energy storage

“…[ 29 ] On the other hand, in Table 2, the phase change enthalpies of SSPCMs were compared with that of different types of SSPCMs. [ 13–15,21,22,25 ] It can be seen that T m and ∆ Hm values of SSPCMs were concerned with the crosslink structure, content, and freedom of motion of phase unit.…”

“…[29] On the other hand, in Table 2, the phase change enthalpies of SSPCMs were compared with that of different types of SSPCMs. [13][14][15]21,22,25] It can be seen that T m and ΔHm values of SSPCMs were concerned with the crosslink structure, content, and freedom of motion of phase unit. Two factors may account for these results: the first, the HNTs@Fe 3 O 4 can act as a heterogeneous nucleation agent to promote crystallization.…”

Flexible engineering of advanced phase change materials

“…The resulting PU@CNTs composite PCMs presented an excellent mechanical stability (elongation at break of 211.7%, tensile strength of 5.97 MPa, and 360°bending available) and a superior thermal conductivity (6.03 W/m·K) ( Wang et al., 2021a ). Similarly, Shi et al. (2020a) incorporated functionalized CNTs in the PU (PEG based solid-solid PCMs)-based PCMs by controlling the molecular weight of PEG and figuring out the optimum selection through the tradeoff between flexibility and thermal storage capacity.…”