Fabrication and mechanical analysis of mimosa tannin and commercial flax fibers biocomposites

Abstract : Composites were prepared by impregnating commercial nonwoven and unidirectional flax fibers mats, with a mimosa tannin/hexamine resin without addition of NaOH as it was described in previous papers and with improved results. The influence of various parameters was observed: the curing cycle including temperature, time, pressure, the moisture content, and the number of fiber mats the composites were made of. A new two-step method was investigated: full drying of the pre-impregnated mats for storage first and then rehydratation just before pressing. The composites obtained gave good modulus of elasticity and tensile strength in traction as well as a good resistance to water swelling for composites prepared with 50% matrix resin/50% natural fibers. Best results appear to be obtained using a slow curing at low temperature (130 degrees C for 35min) with moisture content of 20% on dry material.
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Journal of Adhesion Science and Technology, Taylor & Francis, 2013, 27 (20), pp.2204-2218. 〈10.1080/01694243.2013.767151〉
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https://hal.univ-lorraine.fr/hal-01593630
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Soumis le : mardi 26 septembre 2017 - 15:01:30
Dernière modification le : mardi 20 mars 2018 - 10:17:41

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A. Sauget, A. Nicollin, A. Pizzi. Fabrication and mechanical analysis of mimosa tannin and commercial flax fibers biocomposites. Journal of Adhesion Science and Technology, Taylor & Francis, 2013, 27 (20), pp.2204-2218. 〈10.1080/01694243.2013.767151〉. 〈hal-01593630〉

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