Influence of moisture content on impact properties of flax fibre reinforced polymers

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Abstract

This paper investigates the effect of conditioning at different moisture levels on the properties of flax/PA11 composite. First samples from laminates with a fibre volume fraction (Vf) of 45% and 59% are conditioned at 0%, 50%, 95% relative humidity (RH). Subsequently samples are submerged in water, representing 100% RH. The mass change is monitored in time together with the final thickness increase. Transverse cracks appear after drying of these conditioned samples due to transverse swelling of the flax fibres. Puncture impact test are performed on the conditioned samples. Results of these tests show an increase of puncture energy with increasing RH and Vf. This increase is related to increase fibre pull-out length.
Original languageEnglish
Title of host publicationTEXCOMP-11
Subtitle of host publicationProceedings of the 11th International Conference on Composite Materials: Textile Composites and Characterisation
EditorsS.V. Lomov
Place of PublicationLeuven, Belgium
PublisherKatholieke Universiteit Leuven
Number of pages8
Publication statusPublished - 19 Sep 2013
Event11th International Conference on Textile Composites Home 2013 - Leuven, Belgium
Duration: 19 Sep 201320 Sep 2013
Conference number: 11

Conference

Conference11th International Conference on Textile Composites Home 2013
Abbreviated titleTEXCOMP 2013
CountryBelgium
CityLeuven
Period19/09/1320/09/13

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