RT info:eu-repo/semantics/article
T1 Gas dissolution foaming as a novel approach for the production of lightweight biocomposites of PHB/natural fibre fabrics
A1 Ventura, Heura
A1 Sorrentino, Luigi
A1 Laguna Gutiérrez, Ester
A1 Rodríguez Pérez, Miguel Ángel
A1 Ardanuy, Mònica
K1 Biopolymers
K1 Biopolímeros
K1 Biocomposites
K1 Biocompuestos
K1 Natural fibres
K1 Fibras naturales
K1 Foams
K1 Espumas
AB The aim of this study is to propose and explore a novel approach for the production of cellular lightweight natural fibre, nonwoven, fabric-reinforced biocomposites by means of gas dissolution foaming from composite precursors of polyhydroxybutyrate-based matrix and flax fabric reinforcement. The main challenge is the development of a regular cellular structure in the polymeric matrix to reach a weight reduction while keeping a good fibre-matrix stress transfer and adhesion. The viability of the process is evaluated through the analysis of the cellular structure and morphology of the composites. The effect of matrix modification, nonwoven treatment, expansion temperature, and expansion pressure on the density and cellular structure of the cellular composites is evaluated. It was found that the nonwoven fabric plays a key role in the formation of a uniform cellular morphology, although limiting the maximum expansion ratio of the composites. Cellular composites with a significant reduction of weight (relative densities in the range 0.4–0.5) were successfully obtained.
PB MDPI
SN 2073-4360
YR 2018
FD 2018
LK http://uvadoc.uva.es/handle/10324/40979
UL http://uvadoc.uva.es/handle/10324/40979
LA eng
NO Polymers, 2018, vol. 10, n. 3. 14 p.
NO Producción Científica
DS UVaDOC
RD 22-nov-2024