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Applied Composite Materials
Erschienen in: Applied Composite Materials 5/2011

01.10.2011

PLLA/Flax Mat/Balsa Bio-Sandwich Manufacture and Mechanical Properties

verfasst von: Antoine Le Duigou, Jean-Marc Deux, Peter Davies, Christophe Baley

Erschienen in: Applied Composite Materials | Ausgabe 5/2011

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Abstract

This paper describes the manufacture and mechanical characterization of a sandwich material which is 100% bio-sourced. The flax mat/PLLA facings and balsa core can also be composted at end of service life. Manufacture is by vacuum bag moulding. The optimum moulding time and temperature are a compromise between ensuring good impregnation and avoiding degradation, and holding for 60 min at 180°C was found to be satisfactory. The mechanical properties of the bio-sandwich obtained are compared to those of a traditional glass reinforced polyester balsa sandwich. The flexural strength is 30% lower, as predicted based on the facing properties. Skin/core adhesion is also measured using debonding tests. Crack propagation occurs at the skin/core interface in the traditional sandwich but within the facing in the bio-sandwich. The impregnation of the core in the two materials is examined using X-ray micro-tomography.
Vorheriger Artikel Fatigue Damage Characterization by NDT in Polypropylene/Glass Fibre Composites
Nächster Artikel Dynamic Experimental Study of Deployable Composite Structure

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Metadaten
Titel
PLLA/Flax Mat/Balsa Bio-Sandwich Manufacture and Mechanical Properties
verfasst von
Antoine Le Duigou
Jean-Marc Deux
Peter Davies
Christophe Baley
Publikationsdatum
01.10.2011
Verlag
Springer Netherlands
Erschienen in
Applied Composite Materials / Ausgabe 5/2011
Print ISSN: 0929-189X
Elektronische ISSN: 1573-4897
DOI
https://doi.org/10.1007/s10443-010-9173-8

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