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Título
Evaluation of methods to accurately characterize the thermal conductivity of micro-and nanocellular polymers based on poly(methyl-methacrylate) (PMMA) produced at lab-scale
Autor
Año del Documento
2022
Editorial
Elsevier
Descripción
Producción Científica
Documento Fuente
Polymer Testing, 2022, vol. 17, 107842
Zusammenfassung
The characterization of the thermal conductivity of new and enhanced thermal insulators developed at lab-scale is a challenge. The small dimensions of the prototypes make impossible the use of the conventional techniques because steady-state methods require large samples. Furthermore, the accuracy of transient methods to measure the thermal conductivity is not clear. In this work, we compare four different approaches to measure the thermal conductivity of small prototypes of nanocellular poly(methyl-methacrylate) (PMMA). Both steady-state and transient techniques are used. Results show that the transient plane source method is not suitable for the characterization of these materials (the deviation from the steady-state methods is on average higher than 15%). In addition, two different approaches for measuring the thermal conductivity of small samples via a steady-state technique are proposed and validated.
Palabras Clave
Nanocellular polymers
Polímeros nanocelulares
Thermal conductivity
Conductividad térmica
ISSN
0142-9418
Revisión por pares
SI
Patrocinador
Junta de Castilla y León (grant VA202P20)
Ministerio de Ciencia, Innovación y Universidades (projects RTI2018-098749-B-I00 and PTQ2019-010560)
Instituto para la Competitividad Empresarial de Castilla y León - Fondo Europeo de Desarrollo Regional (projects PAVIPEX. 04/18/VA/008 and FICACEL. 11/20/VA/0001)
Ministerio de Ciencia, Innovación y Universidades (projects RTI2018-098749-B-I00 and PTQ2019-010560)
Instituto para la Competitividad Empresarial de Castilla y León - Fondo Europeo de Desarrollo Regional (projects PAVIPEX. 04/18/VA/008 and FICACEL. 11/20/VA/0001)
Propietario de los Derechos
© 2022 The Authors
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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