Cargando…

Development of Novel Polypropylene Syntactic Foams Containing Paraffin Microcapsules for Thermal Energy Storage Applications

polypropylene (PP) syntactic foams (SFs) containing hollow glass microspheres (HGMs) possess low density and elevated mechanical properties, which can be tuned according to the specific application. A possible way to improve their multifunctionality could be the incorporation of organic Phase Change...

Descripción completa

Detalles Bibliográficos
Autores principales: Galvagnini, Francesco, Dorigato, Andrea, Fambri, Luca, Pegoretti, Alessandro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9737642/
https://www.ncbi.nlm.nih.gov/pubmed/36500613
http://dx.doi.org/10.3390/molecules27238520
_version_ 1784847341573898240
author Galvagnini, Francesco
Dorigato, Andrea
Fambri, Luca
Pegoretti, Alessandro
author_facet Galvagnini, Francesco
Dorigato, Andrea
Fambri, Luca
Pegoretti, Alessandro
author_sort Galvagnini, Francesco
collection PubMed
description polypropylene (PP) syntactic foams (SFs) containing hollow glass microspheres (HGMs) possess low density and elevated mechanical properties, which can be tuned according to the specific application. A possible way to improve their multifunctionality could be the incorporation of organic Phase Change Materials (PCMs), widely used for thermal energy storage (TES) applications. In the present work, a PCM constituted by encapsulated paraffin, having a melting temperature of 57 °C, was embedded in a compatibilized polypropylene SF by melt compounding and hot pressing at different relative amounts. The rheological, morphological, thermal, and mechanical properties of the prepared materials were systematically investigated. Rheological properties in the molten state were strongly affected by the introduction of both PCMs and HGMs. As expected, the introduction of HGMs reduced both the foam density and thermal conductivity, while the enthalpy of fusion (representing the TES capability) was proportional to the PCM concentration. The mechanical properties of these foams were improved by the incorporation of HGMs, while they were reduced by addition of PCMs. Therefore, the combination of PCMs and HGMs in a PP matrix generated multifunctional materials with tunable thermo-mechanical properties, with a wide range of applications in the automotive, oil, textile, electronics, and aerospace fields.
format Online
Article
Text
id pubmed-9737642
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-97376422022-12-11 Development of Novel Polypropylene Syntactic Foams Containing Paraffin Microcapsules for Thermal Energy Storage Applications Galvagnini, Francesco Dorigato, Andrea Fambri, Luca Pegoretti, Alessandro Molecules Article polypropylene (PP) syntactic foams (SFs) containing hollow glass microspheres (HGMs) possess low density and elevated mechanical properties, which can be tuned according to the specific application. A possible way to improve their multifunctionality could be the incorporation of organic Phase Change Materials (PCMs), widely used for thermal energy storage (TES) applications. In the present work, a PCM constituted by encapsulated paraffin, having a melting temperature of 57 °C, was embedded in a compatibilized polypropylene SF by melt compounding and hot pressing at different relative amounts. The rheological, morphological, thermal, and mechanical properties of the prepared materials were systematically investigated. Rheological properties in the molten state were strongly affected by the introduction of both PCMs and HGMs. As expected, the introduction of HGMs reduced both the foam density and thermal conductivity, while the enthalpy of fusion (representing the TES capability) was proportional to the PCM concentration. The mechanical properties of these foams were improved by the incorporation of HGMs, while they were reduced by addition of PCMs. Therefore, the combination of PCMs and HGMs in a PP matrix generated multifunctional materials with tunable thermo-mechanical properties, with a wide range of applications in the automotive, oil, textile, electronics, and aerospace fields. MDPI 2022-12-03 /pmc/articles/PMC9737642/ /pubmed/36500613 http://dx.doi.org/10.3390/molecules27238520 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Galvagnini, Francesco
Dorigato, Andrea
Fambri, Luca
Pegoretti, Alessandro
Development of Novel Polypropylene Syntactic Foams Containing Paraffin Microcapsules for Thermal Energy Storage Applications
title Development of Novel Polypropylene Syntactic Foams Containing Paraffin Microcapsules for Thermal Energy Storage Applications
title_full Development of Novel Polypropylene Syntactic Foams Containing Paraffin Microcapsules for Thermal Energy Storage Applications
title_fullStr Development of Novel Polypropylene Syntactic Foams Containing Paraffin Microcapsules for Thermal Energy Storage Applications
title_full_unstemmed Development of Novel Polypropylene Syntactic Foams Containing Paraffin Microcapsules for Thermal Energy Storage Applications
title_short Development of Novel Polypropylene Syntactic Foams Containing Paraffin Microcapsules for Thermal Energy Storage Applications
title_sort development of novel polypropylene syntactic foams containing paraffin microcapsules for thermal energy storage applications
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9737642/
https://www.ncbi.nlm.nih.gov/pubmed/36500613
http://dx.doi.org/10.3390/molecules27238520
work_keys_str_mv AT galvagninifrancesco developmentofnovelpolypropylenesyntacticfoamscontainingparaffinmicrocapsulesforthermalenergystorageapplications
AT dorigatoandrea developmentofnovelpolypropylenesyntacticfoamscontainingparaffinmicrocapsulesforthermalenergystorageapplications
AT fambriluca developmentofnovelpolypropylenesyntacticfoamscontainingparaffinmicrocapsulesforthermalenergystorageapplications
AT pegorettialessandro developmentofnovelpolypropylenesyntacticfoamscontainingparaffinmicrocapsulesforthermalenergystorageapplications