High Latent-Heat, Soft yet Robust Crystalline Salogels via Dual-Network Design and Solvent Engineering
© 2025 Wiley‐VCH GmbH.
| Publié dans: | Advanced materials (Deerfield Beach, Fla.). - 1998. - (2025) vom: 25. Aug., Seite e10985 |
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| Auteur principal: | |
| Autres auteurs: | , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2025
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| Accès à la collection: | Advanced materials (Deerfield Beach, Fla.) |
| Sujets: | Journal Article dual networks in situ polymerization phase change materials (PCMs) salt hydrates thermal management |
| Résumé: | © 2025 Wiley‐VCH GmbH. Solid-liquid phase change materials (PCMs) hold great promise for addressing challenges in thermal energy storage and temperature management. Yet, they suffer from severe issues of melting leakage and crystalline rigidity in practical applications. Here, an approach is proposed to achieve flexible, high-latent heat PCMs with intrinsic softness and toughness in the crystalline state through the combination of dual polymer networks and inorganic salt hydrates. This strategy constructs salogels via in situ polymerization, leveraging strong polymer-ion-water interactions and introducing excess water to form a solvated polymer network embedded within crystalline salt hydrates. The prepared crystalline salogels demonstrated high energy density (∆Hm, 179-209 J g-1) with ultra-soft (E, 0.05-5 MPa) yet strong (σb, 1-3 MPa) and tough (Γ, 2-6 MJ m-3) mechanical performance, along with low contact thermal resistance (Rc = 0.03 cm2 K W-1). The fabricated thermal management devices present both phase-change-driven heat absorption and hygroscopicity-driven moisture absorption, enabling highly efficient thermal regulation, with a 10 °C reduction observed in a lab suit fitted with a 25 × 15 × 0.5 cm3 salogel patch over 1 h compared to one without the patch. This work provides guidelines for designing crystalline-flexible yet robust salogels from cost-effective salt hydrates for advanced thermal management applications |
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| Description: | Date Revised 25.08.2025 published: Print-Electronic Citation Status Publisher |
| ISSN: | 1521-4095 |
| DOI: | 10.1002/adma.202510985 |