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- Title
Flexural Properties of Wet-Laid Hybrid Nonwoven Recycled Carbon and Flax Fibre Composites in Poly-Lactic Acid Matrix.
- Authors
Tse, Barbara; Yu, Xueli; Gong, Hugh; Soutis, Constantinos
- Abstract
Recycling carbon fibre is crucial in the reduction of waste from the increasing use of carbon fibre reinforced composites in industry. The reclaimed fibres, however, are usually short and discontinuous as opposed to the continuous virgin carbon fibre. In this work, short recycled carbon fibres (rCF) were mixed with flax and poly-lactic acid (PLA) fibres acting as the matrix to form nonwoven mats through wet-laying. The mats were compression moulded to produce composites with different ratios of rCF and flax fibre in the PLA matrix. Their flexural behaviour was examined through three-point-bending tests, and their morphological properties were characterised with scanning electron and optical microscopes. Experimental data showed that the flexural properties increased with higher rCF content, with the maximum being a flexural modulus of approximately 14 GPa and flexural strength of 203 MPa with a fibre volume fraction of 75% rCF and 25% flax fibre. The intimate mixing of the fibres contributed to a lesser reduction of flexural properties when increasing the flax fibre content.
- Subjects
FLEXURAL strength; POLYLACTIC acid; CARBON fibers; COMPOSITE materials; FLAX
- Publication
Aerospace (MDPI Publishing), 2018, Vol 5, Issue 4, p120
- ISSN
2226-4310
- Publication type
Article
- DOI
10.3390/aerospace5040120