RT info:eu-repo/semantics/article
T1 X-ray radioscopy validation of a polyol functionalized with graphene oxide for producing rigid polyurethane foams with improved cellular structures
A1 Santiago Calvo, Mercerdes
A1 Pérez Tamarit, Saúl
A1 Cimavilla Román, Paula
A1 Blasco, Victoria
A1 Ruiz, Carolina
A1 París, Rodrigo
A1 Villafañe González, Fernando
A1 Rodríguez Pérez, Miguel Ángel
K1 Polyurethane foams
K1 Espumas de poliuretano
K1 Graphene oxide
K1 Óxido de grafeno
K1 X-ray radioscopy
K1 Radioscopia de rayos X
AB Fillers can be dispersed in polyurethane (PU) components to produce PU foams with improved properties by different methods. Herein, graphene oxide (GO) is chemically linked to polyol chains in order to suppress fillers agglomeration. Then the foaming behaviour of rigid polyurethane (RPU) foams from polyols functionalized with GO (GO-f) is compared with the one of RPU foams containing GO dispersed in the polyol (GO-d) by high shear mixing. Relative density, cell size, and cell nucleation density of the RPU foam nanocomposites are monitored during the foaming process by using X-ray radioscopy. The results obtained demonstrate that the use of polyol functionalized with GO-f offers a high improvement of the cellular structure and also makes the results more reproducible.
PB Elsevier
SN 0014-3057
YR 2019
FD 2019
LK https://uvadoc.uva.es/handle/10324/49212
UL https://uvadoc.uva.es/handle/10324/49212
LA eng
NO European Polymer Journal, 2019, vol. 118. p. 404-411
NO Producción Científica
DS UVaDOC
RD 22-dic-2024