| 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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Quantin, Jeanchristophe
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2022Viscoelastic behaviour of novel thermoplastic elastomer blends for fused filament fabrication (FFF)
- 2022Influence of the microstructure on the electrical properties of 3D printed PLA/PCL/GNP composites
- 2022Fabrication of PLA/PCL/Graphene Nanoplatelet (GNP) Electrically Conductive Circuit Using the Fused Filament Fabrication (FFF) 3D Printing Techniquecitations
- 2021Lignin as a Major Component of an Intumescent Fire Retardant System for Biopolyester
- 2021Fused filament fabrication (fff) of electrically conductive pla/pcl/graphene nanoplatelets (gnp) bionanocomposites
- 2021Fused filament fabrication (fff) of electrically conductive pla/pcl/graphene nanoplatelets (gnp) bionanocomposites
- 2020Biocomposites ignifugés pour la fabrication additive
- 2011Mechanical behaviour at large strain of polycarbonate nanocomposites during uniaxial tensile testcitations
- 2004Study of interphase in glass fiber-reinforced poly(butylene terephthalate) compositescitations
- 2002Factors influencing viscoelastic properties of a poly (butylene terephthalate) reinforced with short glass fiberscitations
Places of action
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conferencepaper
Lignin as a Major Component of an Intumescent Fire Retardant System for Biopolyester
Abstract
This work is focused on the preparation and the optimization of a biobasedintumescent fire-retardant system (IFR) which was applied to a biopolymer such as PLA.This aliphatic biopolyester is obtained from agricultural plants and is recyclable andcompostable in specific conditions. However, it has a poor thermal stability [1] and is verysensitive to hydrolysis [2]. In order to respect fire security standards, an IFR was designedusing ammonium polyphosphate (APP), a common fire retardant and lignin which is abiobased by-product of the paper industry. Lignin has a good thermal stability and the abilityto retard fire in composite materials by promoting the formation of char in association withAPP [3]. The aim of the study is the optimization of the IFR and the chemical modification oflignin in order to prevent a trans-esterification between PLA and lignin that may break thepolyester macromolecule. The first part of the study shows that an optimized ratio betweenAPP and lignin is situated around 17/3. At this ratio, the IFR is more efficient with asignificant reduction of the heat release rate (HRR) and a good fire retardancy capability(Figure 1). In addition, an encapsulated APP was also tested with lignin. The encapsulantimproved the flame retardancy of the biocomposite with an enhancement of the charpromotion. Finally, the last part of the work was focused on the chemical modification oflignin with esterification or phosphorylation. Chemical treatments showed an improvement ofthe quality of the PLA/lignin adhesion, due to the modification of the surface properties oflignin. The incorporation of phosphorus with lignin favors the intumescent reaction and thechar promotion directly on the lignin particle. As a conclusion, lignin in association with APPwas found to be efficient as IFR component for PLA, and beneficial as reinforcement for thispolymer, applying adequate treatments to improve lignin surface properties and then thecompatibility with PLA.