2024-03-29T22:33:37Zhttps://uvadoc.uva.es/oai/requestoai:uvadoc.uva.es:10324/409792021-06-24T07:47:39Zcom_10324_31661com_10324_952com_10324_894com_10324_1158com_10324_931col_10324_31662col_10324_1242
Ventura, Heura
Sorrentino, Luigi
Laguna Gutiérrez, Ester
Rodríguez Pérez, Miguel Ángel
Ardanuy, Mònica
2018
Producción Científica
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.
application/pdf
http://uvadoc.uva.es/handle/10324/40979
eng
MDPI
Gas dissolution foaming as a novel approach for the production of lightweight biocomposites of PHB/natural fibre fabrics
info:eu-repo/semantics/article
TEXT
UVaDOC. Repositorio Documental de la Universidad de Valladolid
Hispana