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| Naji, M. |
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| Motta, Antonella |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Kočí, Jan | Prague |
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| Azevedo, Nuno Monteiro |
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Michely, Laurent
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Publications (4/4 displayed)
- 2024Antibiotic-loaded gelatin fibers fighting bacteria resistant to antibiotics: a case of spectinomycin-resistant Escherichia colicitations
- 2020Antibiotic loading and development of antibacterial capsules by using porous CaCO3 microparticles as starting materialcitations
- 2020Antibiotic loading and development of antibacterial capsules by using porous CaCO3 microparticles as starting materialcitations
- 2019Thermal Stability and Flammability Behavior of Poly(3-hydroxybutyrate) (PHB) Based Compositescitations
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article
Thermal Stability and Flammability Behavior of Poly(3-hydroxybutyrate) (PHB) Based Composites
Abstract
International audience ; A series of samples based on poly(3-hydroxybutyrate) (PHB) containing five different additives were prepared and their thermal stability and flammability were discussed. The samples were first underwent flammability screening of by using Pyrolysis Combustion Flow Calorimeter (PCFC) analyses. Then, four samples were selected for further investigations. PHB composites containing sepiolite (Sep.) inorganic nanofiller, and also organic ammonium polyphosphate (APP) were examined for flammability and thermal behavior using PCFC, thermogravimetric analysis (TGA), flame test, and Differential Scanning Calorimetry (DSC) analyses. Moreover, burning behavior of samples were captured on a digital camera to give a deeper sense of their flammability character for comparison. The results revealed a significant improvement of flammability and thermal stability of composites, particularly in the presence of sepiolite with respect to the value obtained for unfilled PHB. Regarding TGA results, the char residue yield was increased to ca. 20.0 wt.% in the presence of sepiolite, while 0.0 wt.% was observed for PHB. PCFC measurements uncovered higher performance of PHB-Sep. sample as signaled by 40% reduction in the peak of heat release rate with respect to PHB. According to observations, PHB-Sep. sample showed non-dripping behavior with high capacity of charring in the presence of Sep. in vertical flame test.