Characterization of polypropylene composites reinforced with flax fibers treated by mechanical and alkali method

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Proceedings titleDesign, Manufacturing and Applications of Composites : Proceedings of the 8th Canada-Japan Workshop
Conference8th Joint Canada-Japan Workshop on Composites, 2010-07-26, Montreal, Québec, Canada
Pages2031; # of pages: 12
AbstractFlax is a kind of natural fiber widely used as reinforcing materials for polymer composites. The commercially available flax fibers in Canada consist of a significant amount of shive and other impurities, which could act as stress concentration regions to affect negatively the mechanical property of composites. In this work, the shive was manually removed from the commercial flax fibers by screening and combing to obtain different shive contents from 0 to 30wt%. On the other hand, the obtained flax fibers were further treated with alkaline solution. The fibers obtained from mechanical and alkali treatment were compared on their thermal and mechanical properties. As expected, it was found that the thermal stability and mechanical properties of the flax reinforced polypropylene composites increased significantly with the removal of the shive content. However, the alkali treatment on flax fiber did not improve further the composites properties. The possible reason was that the proper mechanical treatment (screening and combing) prior alkaline treatment has effectively loosed the fiber bundles for better single fiber separation in matrix and removed significantly the impurities, thus the effect of alkaline treatment became not obvious.
Publication date
AffiliationNational Research Council Canada (NRC-CNRC); NRC Industrial Materials Institute
Peer reviewedYes
NRC number52450
NPARC number15959402
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Record identifiera150ec0a-7335-49b0-82c3-f0059478e99e
Record created2010-08-17
Record modified2016-05-09
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