Specific features of flax fibres used to manufacture composite materials

The use of composite materials reinforced by flax fibres has been increasing steadily over the last 20 years. These fibres show attractive mechanical properties but also some particularities (naturally limited length, presence of a lumen, fibres grouped in bundles in the plant, complex surface prope...

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Bibliographic Details
Published in:International journal of material forming 2019-11, Vol.12 (6), p.1023-1052
Main Authors: Baley, Christophe, Gomina, Moussa, Breard, Joel, Bourmaud, Alain, Drapier, Sylvain, Ferreira, Manuela, Le Duigou, Antoine, Liotier, Pierre Jacques, Ouagne, Pierre, Soulat, Damien, Davies, Peter
Format: Article
Language:English
Subjects:
Biomedical materials
CAE) and Design
Composite materials
Computational Intelligence
Computer-Aided Engineering (CAD
Engineering
Engineering Sciences
Fiber orientation
Fiber-matrix adhesion
Fibers
Flax
Impregnation
Machines
Manufacturing
Materials
Materials Science
Mechanical Engineering
Mechanical properties
Porosity
Processes
Retting
Review
Surface properties
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Summary:The use of composite materials reinforced by flax fibres has been increasing steadily over the last 20 years. These fibres show attractive mechanical properties but also some particularities (naturally limited length, presence of a lumen, fibres grouped in bundles in the plant, complex surface properties and composition). An analysis of the available literature indicates that the quality of the composite materials studied is not always optimal (high porosity, incomplete impregnation, heterogeneous microstructure, variable fibre orientation). This paper reviews published data on the specific nature of flax fibres with respect to manufacturing of biocomposites (defined here as polymers reinforced by natural fibres). All the important steps in the process which influence final properties are analyzed, including the plant development, retting, fibre extraction, fibre treatment, preform preparation, available manufacturing processes, the impregnation step, fibre cell wall changes during processing and fibre/matrix adhesion.
ISSN:1960-6206
1960-6214
DOI:10.1007/s12289-018-1455-y