A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Scaling up hybrid insulation : Integration of lignocellulose and phase change materials for sustainable thermal management
Tekijät: Hu, Xiang; Kankkunen, Ari; Seppälä, Ari; Yazdani McCord, Maryam R.
Kustantaja: Elsevier
Julkaisuvuosi: 2024
Journal: Materials Today Communications
Tietokannassa oleva lehden nimi: Materials Today Communications
Artikkelin numero: 110281
Vuosikerta: 41
eISSN: 2352-4928
DOI: https://doi.org/10.1016/j.mtcomm.2024.110281
Verkko-osoite: https://doi.org/10.1016/j.mtcomm.2024.110281
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/457815220
This research addresses the need for eco-friendly, thermally protective packaging materials. A scalable process was developed that minimizes greenhouse gas emissions and produces hybrid materials with improved thermal insulation, energy storage, mechanical resilience, and water resistance. By using lignocellulose as a porous carrier and polyethylene glycol (PEG) as a phase change material (PCM), convective drying proved more effective for large-scale production than freeze-drying. The resulting materials are flexible, lightweight (0.03–0.04 g/cm³), and hydrophobic. They exhibit suitable thermal properties with latent heat capacities within 110–123 J/g and thermal conductivities within 0.037–0.042 W/mK. These hybrids are leak-free during phase transitions with tunable melting points, confirming their practicality. Life Cycle Assessment (LCA) shows that this method uses less energy and produces fewer carbon emissions than freeze-drying. Thus, convective drying is a promising scaling-up method for producing effective, eco-friendly temperature-responsive insulation materials for various applications requiring temperature control.
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This research was funded by Business Finland ( 7428/31/2022 , PCMI project) and the Research Council of Finland ( 343192 , SoMa project).
