Recent Advances and Applications of Flexible Phase Change Composites

EcoMat, Journal Year: 2025, Volume and Issue: 7(4)

Published: March 18, 2025

ABSTRACT Flexible phase change composites (FPCCs) have garnered significant attention for their ability to combine high latent heat capacity with mechanical flexibility. This combination enables advanced thermal management in emerging fields such as flexible electronics, soft robotics, and wearable technologies. Traditional materials (PCMs) excel energy absorption release. However, rigidity limits applicability the sectors above. Existing reviews largely focus on encapsulation methods traditional PCM applications, leaving a gap literature concerning flexibility enhancement strategies FPCC‐specific applications. review seeks address this by presenting comprehensive timeline of FPCC development, elucidating principles capacity, systematically reviewing recent advancements field. Emphasis is placed design at both structural level, fiber foam configurations, including physical blending molecular engineering. Performance comparisons are provided, evaluating FPCCs terms storage Furthermore, explores diverse applications storage, transfer, conversion, release, underscoring potential cutting‐edge sectors. By highlighting FPCCs' versatility interdisciplinary aims inspire further research integration into domains requiring solutions.

Language: Английский

Wearable Thermal Energy Storage Polymeric Materials via the Progressive Phase Change Strategy of Crystalline Bottlebrush Polysiloxane Networks

Chemistry of Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

Flexible polymeric solid–solid phase change materials (PCMs) have garnered continuous attention owing to their potential for thermal management in flexible/wearable devices and non-leakage characteristics. However, it is still a big challenge obtain PCMs with both flexibility high latent heat. In this study, bottlebrush polysiloxane networks alkyl side chains of different lengths (Si-X) are prepared through one-step grafting cross-linking process. The influence the length chain on mechanical thermomechanical properties, behavior, rheological characteristics, stability systematically studied. Furthermore, concept progressive proposed by cografting crystalline multiple networks, which reduces dense packing crystals. resulting network (Si-ODDT-70) exhibits excellent heat (ΔHm = 128.0 J/g; ΔHf 129.1 J/g) elongation at break values exceeding 200 450% room body temperatures, respectively. addition, Si-ODDT-70 can be freely coiled, rolled, cut, repaired UV light temperature. Besides, recyclable, stretchable/bendable, multiresponsive composites obtained combining liquid metal/graphene paper Si-ODDT-70. first strategy offers solution unify PCMs, will further enrich polymer topology structures guide future design flexible PCMs.

Language: Английский