Magnesium oxychloride cement-based composites for latent heat storage: The effect of the introduction of multi-walled carbon nanotubes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43926369" target="_blank" >RIV/60461373:22310/23:43926369 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22340/23:43926369 RIV/68407700:21110/23:00366217

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2352710223007830?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2352710223007830?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jobe.2023.106604" target="_blank" >10.1016/j.jobe.2023.106604</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Magnesium oxychloride cement-based composites for latent heat storage: The effect of the introduction of multi-walled carbon nanotubes

Popis výsledku v původním jazyce

Due to the energy crisis, energy savings in construction are very important. One possibility is the incorporation of phase change materials (PCM) into construction materials. In this paper, PCM was introduced into magnesium oxychloride cement (MOC) together with multi-walled carbon nanotubes (CNT) to form multicomponent MOC-CNT-PCM composite for latent heat storage. The phase composition, chemical composition, and microstructure of prepared composites were analyzed in detail. The focus was also given to thermal stability, which was evaluated by Simultaneous Thermal Analysis combined with Mass Spectroscopy. The enthalpies of phase changes were analyzed by Differential Scanning Calorimetry. On matured samples, structural, mechanical, hygric, and thermal properties were tested and the influence of CNT addition was evaluated. Despite the introduction of PCM causing significant deterioration of mechanical parameters of the prepared construction composites, the mechanical strength regarding their possible utilization in low-energy buildings was proven to be sufficient. The relative decrease in the mechanical parameters was also compensated by excellent thermal properties that will allow for a decrease in energy consumption attributed to the production and utilization of such buildings. © 2023 Elsevier Ltd

Název v anglickém jazyce

Magnesium oxychloride cement-based composites for latent heat storage: The effect of the introduction of multi-walled carbon nanotubes

Popis výsledku anglicky

Due to the energy crisis, energy savings in construction are very important. One possibility is the incorporation of phase change materials (PCM) into construction materials. In this paper, PCM was introduced into magnesium oxychloride cement (MOC) together with multi-walled carbon nanotubes (CNT) to form multicomponent MOC-CNT-PCM composite for latent heat storage. The phase composition, chemical composition, and microstructure of prepared composites were analyzed in detail. The focus was also given to thermal stability, which was evaluated by Simultaneous Thermal Analysis combined with Mass Spectroscopy. The enthalpies of phase changes were analyzed by Differential Scanning Calorimetry. On matured samples, structural, mechanical, hygric, and thermal properties were tested and the influence of CNT addition was evaluated. Despite the introduction of PCM causing significant deterioration of mechanical parameters of the prepared construction composites, the mechanical strength regarding their possible utilization in low-energy buildings was proven to be sufficient. The relative decrease in the mechanical parameters was also compensated by excellent thermal properties that will allow for a decrease in energy consumption attributed to the production and utilization of such buildings. © 2023 Elsevier Ltd

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GM23-05194M" target="_blank" >GM23-05194M: Vysocepevné a voděodolné MOC kompozity se sekundárními plnivy: příspěvek 2D uhlíkových nanomateriálů a jejich kombinací</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Building Engineering

ISSN

2352-7102

e-ISSN

—

Svazek periodika

72

Číslo periodika v rámci svazku

Srpen

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

106604

Kód UT WoS článku

001054190000001

EID výsledku v databázi Scopus

2-s2.0-85152961588