Por favor, use este identificador para citar o enlazar este ítem:http://uvadoc.uva.es/handle/10324/38456
Título
Effect of carbon nanotubes on the thermal conductivity of flexible cellular polymers based on polyurethane
Autor
Director o Tutor
Año del Documento
2019
Titulación
Máster en Física
Resumo
The main aim of this research is to increase the thermal conductivity of flexible PU foams by the addition of single wall
carbon nanotubes (SWCNT). Four techniques to maximise dispersion of nanotube in different mediums before its addition
to a flexible Polyurethane (PU) matrix have been used. Semiempirical obtained solid conductivity values for all studied
samples have been compared with theoretical models (mixing rule and Kapitza models), to assess whether filler
percolation did take place or not. The effect of dispersion technique and percolation network in cellular structural
changes has also been analysed. Net obtained thermal conductivity gain, directly attributed to addition of SWCNT is
25,6 %, referred to a pure flexible foam.
Palabras Clave
PU foams
Thermal conductivity
SWCNT
Percolation network
Departamento
Departamento de Física de la Materia Condensada, Cristalografía y Mineralogía
Idioma
eng
Derechos
openAccess
Aparece en las colecciones
- Trabajos Fin de Máster UVa [6381]
Arquivos deste item
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