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A Facile and Simple Method for Preparation of Novel High-Efficient Form-Stable Phase Change Materials Using Biomimetic–Synthetic Polydopamine Microspheres as a Matrix for Thermal Energy Storage
Article

Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance

1
Faculty of Engineering Technology, Department of Thermal and Fluid engineering (TFE), University of Twente, 7500 AE Enschede, The Netherlands
2
TNO, 5656 AE Eindhoven, The Netherlands
3
TNO, 2628 CA Delft, The Netherlands
4
Solar Thermal Systems Department, Center for Renewable Energy Sources, Pikermi, 19009 Athens, Greece
*
Authors to whom correspondence should be addressed.
The first and second authors contributed equally.
Polymers 2019, 11(9), 1507; https://doi.org/10.3390/polym11091507
Received: 11 August 2019 / Revised: 3 September 2019 / Accepted: 5 September 2019 / Published: 16 September 2019
(This article belongs to the Special Issue Polymers for Thermal Energy Conversion and Storage)
The performance of solar-thermal conversion systems can be improved by incorporation of encapsulated phase change materials. In this study, for the first time, CrodathermTM 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. View Full-Text
Keywords: phase change material; micro-encapsulation; polyurea; graphite nanoplatelet; thermal storage; photothermal phase change material; micro-encapsulation; polyurea; graphite nanoplatelet; thermal storage; photothermal
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MDPI and ACS Style

Tahan Latibari, S.; Eversdijk, J.; Cuypers, R.; Drosou, V.; Shahi, M. Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance. Polymers 2019, 11, 1507. https://doi.org/10.3390/polym11091507

AMA Style

Tahan Latibari S, Eversdijk J, Cuypers R, Drosou V, Shahi M. Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance. Polymers. 2019; 11(9):1507. https://doi.org/10.3390/polym11091507

Chicago/Turabian Style

Tahan Latibari, Sara, Jacco Eversdijk, Ruud Cuypers, Vassiliki Drosou, and Mina Shahi. 2019. "Preparation of Phase Change Microcapsules with the Enhanced Photothermal Performance" Polymers 11, no. 9: 1507. https://doi.org/10.3390/polym11091507

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