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Title: | Manufacturing of nano-enhanced shape stabilized phase change materials with montmorillonite by Banbury oval rotor mixer for buildings applications |
Author: | Salgado-Pizarro, Rebeca Martín, Marc Svobodova Sedlackova, Adela Calderón, Alejandro Haurie, Laia Fernández Renna, Ana Inés Barreneche, Camila |
Keywords: | Emmagatzematge d'energia Ciència dels materials Silicats Storage of energy Materials science Silicates |
Issue Date: | 2-Sep-2022 |
Publisher: | Elsevier |
Abstract: | The use of adequate thermal energy storage (TES) systems has shown the potential to increase energy efficiency in many fields, such as the building sector. Shape-stabilized phase change materials (SS-PCMs) have attracted attention to address one of the key barriers of phase change materials (PCMs), the leakage during the liquid state, that nowadays limits its applicability. However, SS-PCMs still have drawbacks to overcome, such as poor fire reaction and thermal stability. In the present study, polymeric SS-PCMs are nano-enhanced with layered silicates to overcome these drawbacks. The new shape-stabilized nano-enhanced phase change material (SS-NEPCM) is based on ethylene propylene diene monomer (EPDM) as a polymeric matrix, palmitic acid (PA) as PCM and montmorillonite (MMT) as the layered silicate. An innovative method based on a Banbury mixer was used to prepare it, which is an industrially scalable fabrication method. To evaluate the effect of each component, eight different formulations were prepared: pure EPDM, EPDM with MMT additions (1 wt%, 3 wt% and 5 wt%), EPDM with PA additions (5 wt% and 10 wt%) and EPDM with MMT (3 wt%) and PA additions (5 wt% and 10 wt%). The composite materials obtained were not degraded by processing as FT-IR results show. The results obtained by X-ray diffraction showed that an ordered intercalated morphology is formed between EPDM chains and MMT. Thermogravimetric experimental results revealed an increase in the thermal stability of SS-NEPCM as a result of the barrier effect provided by MMT. Moreover, SS-NEPCM fire resistance was improved with a great reduction or avoidance of the dripping phenomenon. |
Note: | Versió postprint del document publicat a: https://doi.org/10.1016/j.est.2022.105289 |
It is part of: | Journal Of Energy Storage, 2022, vol. 55, p. 105289 |
URI: | http://hdl.handle.net/2445/199373 |
Related resource: | https://doi.org/10.1016/j.est.2022.105289 |
ISSN: | 2352-152X |
Appears in Collections: | Articles publicats en revistes (Ciència dels Materials i Química Física) |
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