| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Tribot, Amélie
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2024Development and Characterization of Poly(butylene succinate-co-adipate)/Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with Cowpea Lignocellulosic Fibers as a Filler via Injection Molding and Extrusion Film-Castingcitations
- 2023Properties of Bio-Composite Packaging Materials Developed Using Cowpea Lignocellulosic Sidestream as a Filler
- 2023Agricultural sidestream as a biomaterial commodity: opportunities and challenges
- 2023Faba bean lignocellulosic sidestream as a filler for the development of biodegradable packagingcitations
- 2022Green polymers filaments for 3D-printingcitations
- 2022Recycling of 3D Printable Thermoplastic Cellulose-Compositecitations
- 2022Novel Cellulose based Composite Material for Thermoplastic processing
- 2022Poly(butylene succinate-co-adipate)/poly(hydroxybutyrate) blend films and their thermal, mechanical and gas barrier propertiescitations
- 2022Green polymer filaments for 3D printingcitations
- 2022Effects of Kraft lignin and corn cob agro-residue on the properties of injected-moulded biocompositescitations
- 2022Effects of Kraft lignin and corn cob agro-residue on the properties of injected-moulded biocompositescitations
- 2020Valorisation de la ”partie lignine” des effluents de prétraitement de biomasse forestière : élaboration et caractérisation d’agrocomposites
- 2019Valorization of Kraft Lignin and Corn Cob by-Products into PLA-Matrix based Biocomposites: Characterisation of Injected-moulded Specimens
- 2018X-ray microtomography applied to bio-based composites made of by-products from forest and agricultural industries
- 2018X-ray microtomography applied to bio-based composites made of by-products from forest and agricultural industries
Places of action
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thesis
Valorisation de la ”partie lignine” des effluents de prétraitement de biomasse forestière : élaboration et caractérisation d’agrocomposites
Abstract
Lignin is a polymeric constituent of vascular plants’ pectocellulosic walls. It is a by-product, poorly upgraded from pulp and paper, and biorefinery industries. To evaluate their potential in agrocomposites field, commercial lignins (sodium lignosulfonates and Kraft lignin) were processed along with corn cob, an agro-industrial residue used hereby as a natural fibre. Firstly, a compression-moulding process allowed the combination of hydrated sodium lignosulfonates and corn cob particles. The impact of three factors (particle size, fibre content, and compacting pressure) on compressive mechanical properties was measured. Although sodium lignosulfonates cross-linking by commercial laccases was highlighted in solution, addition of such enzymes to agrocomposites formulations did not improve their flexural strength (maximum value of 5.3 MPa). The acoustic insulation properties of agrocomposites (sound transmission loss of 60 dB) and their thermal conductivity of 0.143 W.m - 1.K -1 may suggest applications in the building sector. Secondly, nine formulations of bio-based materials were developed by twin-screw extrusion, and then injection moulding, combining a bio-based thermoplastic polymer matrix (polylactic acid and/or poly(butylene succinate)) with technical lignins (2.5 to 20% (m/m) Kraft lignin or sodium lignosulfonates), and corn cob particles (5 to 19% (m/m)). The addition of Kraft lignin led to increased hardness of the materials up to 50%, and more hydrophobicity compared to polylactic acid. Nevertheless, their mechanical strengths decreased (by a maximum of 40%), and materials exhibited a more brittle fracture profile. In the presence of corn cob, transfer of forces from matrix to fibres was not ideal since de-bonding was detected at the interfaces under irreversible flexural stress. However, these bio-based materials exhibited mechanical, and thermal properties that made them suitable for synthetic plastics substitution while adding value to by-products of agricultural, and forest industries.