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Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance

The performance of solar-thermal conversion systems can be improved by incorporation of encapsulated phase change materials. In this study, for the first time, Crodatherm(TM) 60 as a phase change material (PCM) was successfully encapsulated within polyurea as the shell supporting material. While pre...

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Detalles Bibliográficos
Autores principales: Tahan Latibari, Sara, Eversdijk, Jacco, Cuypers, Ruud, Drosou, Vassiliki, Shahi, Mina
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780736/
https://www.ncbi.nlm.nih.gov/pubmed/31527466
http://dx.doi.org/10.3390/polym11091507
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author Tahan Latibari, Sara
Eversdijk, Jacco
Cuypers, Ruud
Drosou, Vassiliki
Shahi, Mina
author_facet Tahan Latibari, Sara
Eversdijk, Jacco
Cuypers, Ruud
Drosou, Vassiliki
Shahi, Mina
author_sort Tahan Latibari, Sara
collection PubMed
description The performance of solar-thermal conversion systems can be improved by incorporation of encapsulated phase change materials. In this study, for the first time, Crodatherm(TM) 60 as a phase change material (PCM) was successfully encapsulated within polyurea as the shell supporting material. While preparing the slurry samples, graphite nanoplatelet (GNP) sheets were also incorporated to enhance the thermal and photothermal properties of the prepared materials. The morphology and chemical properties of these capsules were characterized by scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectrum, respectively. The results show the spherical-like and core-shell structure of capsules with an average diameter size of 3.34 μm. No chemical interaction was observed between the core and the supporting materials. The thermal characteristics of the microencapsulated PCMs (MEPCMs), analyzed by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), indicate that the prepared samples with 0.1 weight percentage of GNP possess the latent heat of 95.5 J/g at the phase transition temperature of about 64 °C. Analyzing the rheological properties of the prepared slurry with 16 wt % of MEPCMs proves that the prepared material meet the requirements given by the heat transfer applications. The thermal storage capacity, good thermal stability, and improved photothermal performance of the prepared material make it a potential candidate for using in direct absorption solar thermal applications.
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spelling pubmed-67807362019-10-30 Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance Tahan Latibari, Sara Eversdijk, Jacco Cuypers, Ruud Drosou, Vassiliki Shahi, Mina Polymers (Basel) Article The performance of solar-thermal conversion systems can be improved by incorporation of encapsulated phase change materials. In this study, for the first time, Crodatherm(TM) 60 as a phase change material (PCM) was successfully encapsulated within polyurea as the shell supporting material. While preparing the slurry samples, graphite nanoplatelet (GNP) sheets were also incorporated to enhance the thermal and photothermal properties of the prepared materials. The morphology and chemical properties of these capsules were characterized by scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectrum, respectively. The results show the spherical-like and core-shell structure of capsules with an average diameter size of 3.34 μm. No chemical interaction was observed between the core and the supporting materials. The thermal characteristics of the microencapsulated PCMs (MEPCMs), analyzed by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA), indicate that the prepared samples with 0.1 weight percentage of GNP possess the latent heat of 95.5 J/g at the phase transition temperature of about 64 °C. Analyzing the rheological properties of the prepared slurry with 16 wt % of MEPCMs proves that the prepared material meet the requirements given by the heat transfer applications. The thermal storage capacity, good thermal stability, and improved photothermal performance of the prepared material make it a potential candidate for using in direct absorption solar thermal applications. MDPI 2019-09-16 /pmc/articles/PMC6780736/ /pubmed/31527466 http://dx.doi.org/10.3390/polym11091507 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tahan Latibari, Sara
Eversdijk, Jacco
Cuypers, Ruud
Drosou, Vassiliki
Shahi, Mina
Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance
title Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance
title_full Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance
title_fullStr Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance
title_full_unstemmed Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance
title_short Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance
title_sort preparation of phase change microcapsules with the enhanced photothermal performance
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6780736/
https://www.ncbi.nlm.nih.gov/pubmed/31527466
http://dx.doi.org/10.3390/polym11091507
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