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Article

Energy-Efficient Geopolymer Composites Containing Phase-Change Materials—Comparison of Different Contents and Types

by
Agnieszka Przybek
1,
Michał Łach
1,
Rafał Bogucki
1,
Justyna Ciemnicka
2,
Karol Prałat
2,
Artur Koper
2,
Kinga Korniejenko
1 and
Adam Masłoń
3,*
1
Faculty of Material Engineering and Physics, Cracow University of Technology, Jana Pawła II 37, 31-864 Cracow, Poland
2
Faculty of Civil Engineering, Mechanics and Petrochemistry, Warsaw University of Technology, Łukasiewicza 17, 09-400 Płock, Poland
3
Department of Environmental Engineering and Chemistry, Rzeszów University of Technology, Powstańców Warszawy 6, 35-959 Rzeszów, Poland
*
Author to whom correspondence should be addressed.
Materials 2024, 17(19), 4712; https://doi.org/10.3390/ma17194712
Submission received: 22 August 2024 / Revised: 19 September 2024 / Accepted: 21 September 2024 / Published: 25 September 2024
(This article belongs to the Special Issue Environmentally Friendly Composites Incorporating Waste Materials)
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Abstract

The purpose of this study was to analyze the effects of phase-change components on the properties of geopolymer foams. Geopolymer foams are lightweight foamed geopolymers that are characterized by a high degree of porosity. Phase change materials, on the other hand, are compounds that, when added to a material, allow it to absorb, store, and then release large amounts of energy. Three types of PCMs, i.e., MikroCaps, GR42, and PX25, were introduced at 15% by weight. Geopolymer materials were produced based on silica fly ash, and hydrogen peroxide H2O2 was used to foam the geopolymer structure. The PCM geopolymer composites were cured at 60 °C. The produced materials were tested for physical, chemical, and thermal properties. The tests included oxide and mineral composition analysis of the base material, PCM particle size analysis, apparent density and porosity tests on the foams, water leachability tests, thermal tests (λ, Cv, Cp, α), and structural and textural analysis. The most relevant tests to confirm the performance of the phase-change materials were thermal tests. With the introduction of PCMs, volumetric heat capacity increased by as much as 41% and specific heat by 45%, and thermal diffusivity decreased by 23%. The results confirm the great potential of geopolymer composites as modern insulation materials for buildings and structures.
Keywords: geopolymer foams; inorganic polymer composite; phase-change materials (PCM); functionally graded materials and structures for energy saving; composites for modern building insulation materials geopolymer foams; inorganic polymer composite; phase-change materials (PCM); functionally graded materials and structures for energy saving; composites for modern building insulation materials

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MDPI and ACS Style

Przybek, A.; Łach, M.; Bogucki, R.; Ciemnicka, J.; Prałat, K.; Koper, A.; Korniejenko, K.; Masłoń, A. Energy-Efficient Geopolymer Composites Containing Phase-Change Materials—Comparison of Different Contents and Types. Materials 2024, 17, 4712. https://doi.org/10.3390/ma17194712

AMA Style

Przybek A, Łach M, Bogucki R, Ciemnicka J, Prałat K, Koper A, Korniejenko K, Masłoń A. Energy-Efficient Geopolymer Composites Containing Phase-Change Materials—Comparison of Different Contents and Types. Materials. 2024; 17(19):4712. https://doi.org/10.3390/ma17194712

Chicago/Turabian Style

Przybek, Agnieszka, Michał Łach, Rafał Bogucki, Justyna Ciemnicka, Karol Prałat, Artur Koper, Kinga Korniejenko, and Adam Masłoń. 2024. "Energy-Efficient Geopolymer Composites Containing Phase-Change Materials—Comparison of Different Contents and Types" Materials 17, no. 19: 4712. https://doi.org/10.3390/ma17194712

APA Style

Przybek, A., Łach, M., Bogucki, R., Ciemnicka, J., Prałat, K., Koper, A., Korniejenko, K., & Masłoń, A. (2024). Energy-Efficient Geopolymer Composites Containing Phase-Change Materials—Comparison of Different Contents and Types. Materials, 17(19), 4712. https://doi.org/10.3390/ma17194712

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