^ Preparation and Property Modification on Novel Energy Storage Material: n-Octadecane PCMs/Expanded Perlite Composite Gypsum Board | Structurae
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Preparation and Property Modification on Novel Energy Storage Material: n-Octadecane PCMs/Expanded Perlite Composite Gypsum Board

Autor(en):



Medium: Fachartikel
Sprache(n): Englisch
Veröffentlicht in: Advances in Civil Engineering, , v. 2019
Seite(n): 1-7
DOI: 10.1155/2019/4501354
Abstrakt:

Phase change materials (PCMs) have been widely used to improve the thermal energy storage capacity of building materials. In this study, then-octadecane (OD)/expanded perlite (EP) composite PCM, which was prepared by incorporation of liquidn-octadecane into EP using the vacuum impregnation method, was used to fabricate the gypsum board. The microscopic, thermal, and mechanical properties were studied. The SEM results showed that OD could be absorbed into the pores of EP uniformly. The FI-IR results showed that OD and EP have good chemical stability. It was found that the gypsum board has best heat transfer delay when the volume fraction of OD/EP was 20% (v/v). The mechanical property of the gypsum board with OD/EP decreased. To deal with the problem, the effect of nano-Al2O3on the gypsum board was also studied. The results showed that the mechanical properties of the gypsum board were effectively increased when the dosage of nano-Al2O3was 0.5 wt.%, and the gypsum board had the best thermal insulation effect when the nano-Al2O3content was 0.3 wt.%. Considering the cost and the comprehensive property, it was suggested that the optimal addition content of nano-Al2O3was 0.3 wt.%.

Copyright: © 2019 Jianping Zhu et al.
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Dieses Werk wurde unter der Creative-Commons-Lizenz Namensnennung 4.0 International (CC-BY 4.0) veröffentlicht und darf unter den Lizenzbedinungen vervielfältigt, verbreitet, öffentlich zugänglich gemacht, sowie abgewandelt und bearbeitet werden. Dabei muss der Urheber bzw. Rechteinhaber genannt und die Lizenzbedingungen eingehalten werden.

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    10315115
  • Veröffentlicht am:
    24.06.2019
  • Geändert am:
    02.06.2021