Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Preparation and Properties of a Composite Carbon Foam as Energy Storage and EMI Shield Additive for Advanced Cement and Gypsum Boards

Christina Gioti
,
Konstantinos C. Vasilopoulos
ORCID logo ,
Maria Baikousi
* ,
Angelos Ntaflos
ORCID logo ,
Zacharias Viskadourakis
ORCID logo ,
Alkiviadis S. Paipetis
ORCID logo ,
Constantinos E. Salmas
ORCID logo ,
George Kenanakis
ORCID logo ,
Michael A. Karakassides
*
Version 1 : Received: 22 April 2024 / Approved: 23 April 2024 / Online: 23 April 2024 (05:25:36 CEST)

How to cite: Gioti, C.; Vasilopoulos, K.C.; Baikousi, M.; Ntaflos, A.; Viskadourakis, Z.; Paipetis, A.S.; Salmas, C.E.; Kenanakis, G.; Karakassides, M.A. Preparation and Properties of a Composite Carbon Foam as Energy Storage and EMI Shield Additive for Advanced Cement and Gypsum Boards. Preprints 2024, 2024041500. https://doi.org/10.20944/preprints202404.1500.v1 Gioti, C.; Vasilopoulos, K.C.; Baikousi, M.; Ntaflos, A.; Viskadourakis, Z.; Paipetis, A.S.; Salmas, C.E.; Kenanakis, G.; Karakassides, M.A. Preparation and Properties of a Composite Carbon Foam as Energy Storage and EMI Shield Additive for Advanced Cement and Gypsum Boards. Preprints 2024, 2024041500. https://doi.org/10.20944/preprints202404.1500.v1

Abstract

This article explores the cutting-edge advancement of gypsum and cement building boards infused with shape-stabilized n-octadecane, an organic phase change material (PCM). The primary focus is on improving energy efficiency and providing electromagnetic interference (EMI) shielding capabilities for contemporary buildings. The research investigates the integration of these materials into construction materials, using red-mud Carbon Foam as a stabilizer for n-octadecane (OD@CCF). Various analyses, including microstructural examination, porosity assessment, and additive dispersion, were conducted using X-ray microtomography and density measurements. Thermal conductivity measurements demonstrated the enhancement of composite boards as the OD@CCF content increased, while mechanical tests indicated an optimal additive content of up to 20%. The thermal-regulated capabilities of these advanced panels were evaluated in a custom-designed room model equipped with a homemade environmental chamber, illustrating a consistent temperature environment during heating and cooling cycles. The incorporation of OD@CCF into cement boards exhibited improved thermal energy storage properties. Moreover, the examined composite boards displayed efficient electromagnetic shielding performance within the frequency range of 3.2–7.0 GHz, achieving EMI values of approximately 18 and 19.5 dB for gypsum and cement boards, respectively, meeting the entry-level value required for commercial applications.

Keywords

phase change material; shape-stabilized n-octadecane; red-mud carbon foam; advanced cement boards; advanced gypsum boards; density measurements; thermal conductivity; environmental chamber; electromagnetic interference shielding

Subject

Chemistry and Materials Science, Materials Science and Technology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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