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September 17, 2026Proceedings of the Institution of Mechanical Engineers Part L Journal of Materials Design and Applications

Radiative heating performance of sodium alginate–based sustainable composite films incorporating ceramic fillers

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Authors

SKSibel KaplanDDDilara Melek DemirbekNMNazife Korkmaz Memiş

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Overview

Experimental study demonstrates enhanced passive heating in ceramic-loaded sodium alginate films, indicating potential for sustainable personal thermal management.

Key Points

  • To develop and evaluate sustainable, sodium alginate–based composite films with ceramic microparticles designed for passive radiative heating and heat retention.
  • Fabricated biopolymer composite films by embedding zinc oxide, tourmaline, and pumice microparticles into a sodium alginate matrix.
  • Assessed mid-infrared and solar radiation characteristics using FT-IR and UV-VIS-NIR spectroscopy with integrating spheres.
  • Evaluated thermal retention performance under simulated conditions using a hotplate equipped with a far-infrared lamp.
  • Composite films containing pumice and tourmaline achieved passive temperature increases of up to 10.09 °C compared to particle-free films.
  • Pumice- and tourmaline-loaded films produced thermal gains up to 8.55 °C higher than standard black fabric under identical simulated conditions.
  • Enhanced passive warming was mediated by high mid-infrared reflectance redirecting thermal energy inward combined with minimal mid-infrared emissivity reducing radiative heat loss.

Cite This Study

Kaplan et al. (2026) studied this question.

synapsesocial.com/papers/6aabb7155f706d05830e5f26https://doi.org/10.1177/14644207261474017
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