Latent heat nano composite building materials |
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Authors: | M. Constantinescu L. Dumitrache E.M. Anghel A. Stoica |
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Affiliation: | a Romanian Academy, Institute of Physical Chemistry “Ilie Murgulescu”, Spl. Independentei 202, 060021 Bucharest, Romania b The National Chemical Research Institute (ICECHIM), Spl. Independentei 202, 060021 Bucharest, Romania c The National Construction Research Institute (INCERC), Sos. Pantelimon 256, Bucharest, Romania |
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Abstract: | Heat storage for heating and cooling of buildings reduces the conventional energy consumption with a direct impact on CO2 emissions. The goal of this study was to find the physico-chemical fundamentals for tailoring phase change material (PCM)-epoxy composites as building materials depending on phase change temperature and latent heat using the optimal geometry for each application. Thus, some nano-composite materials were prepared by mixing a PCM with large latent heats with epoxy resin and Al powder. Some polyethylene glycols of different molecular weights (1000, 1500, and 2000) were used as PCMs. Subsequently these PCM-epoxy composites were thermo-physically characterized by DSC measurements and found to be suitable for building applications due to their large latent heat, appropriate phase change temperature and good performance stability. Moreover these cross-linked three dimensional structures are able to reduce the space and costs for encapsulation. |
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Keywords: | Phase change materials Polymers Energy storage Differential scanning calorimetry (DSC) Raman spectroscopy |
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