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Design and development of 100% bio-based high-grade hemp/epoxy composites

François, Camille and Placet, Vincent and Gaillard, Yves and Pourchet, Sylvie and Boni, Gilles and Plasseraud, Laurent and Ouagne, Pierre and Samec, Joseph and Rautiainen, Sari and Fournier, Lucie and Robert, Carine and Thomas, Christophe and Fontaine, Stéphane Design and development of 100% bio-based high-grade hemp/epoxy composites. (2017) In: 21st International Conference on Composite Materials, 20 August 2017 - 25 August 2017 (Xi'an, China).

(Document in English)

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In order to develop 100% bio-based high-grade epoxy composites, in this study, bio-based epoxy thermosets and hemp slivers are processed and characterized by different technologies. Epoxy resins are synthesized from the diglycidylether of Eugenol, extracted from cloves. They are cured with bio-based acid anhydrides. The physicochemical properties of the resulting epoxy resins are characterized using thermogravimetric analyses (TGA), differential scanning calorimetry (DSC), and nanoindentation. The mechanical properties of hemp fibres extracted from the slivers are also determined using tensile tests. After their processing and characterization, these bio-based constituents are then used to manufacture unidirectional composites by thermocompression. Composite specimens are tested under 3-points bending. Preliminary results show a stiffness of about 9 GPa and a strength of approximately 170 MPa for a fibres volume fraction of 22%. These mechanical properties are promising since they make this material competitive to substitute petroleum-based composites in secondary structural applications.

Item Type:Conference or Workshop Item (Paper)
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Ecole Nationale Supérieure de Chimie de Paris - ENSCP (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Other partners > Université de Bourgogne - UB (FRANCE)
Other partners > Université de Franche-Comté (FRANCE)
Other partners > Université de Technologie de Belfort-Montbéliard - UTBM (FRANCE)
Other partners > Institut Supérieur de l'Automobile et des Transports - ISAT (FRANCE)
Other partners > PSL Research University (FRANCE)
Other partners > Stockholm University (SWEDEN)
Other partners > Université Bourgogne Franche-Comté - UBFC (FRANCE)
Laboratory name:
Deposited On:09 Dec 2019 14:16

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