6533b861fe1ef96bd12c43aa
RESEARCH PRODUCT
Reprocessed polylactide: Studies of thermo-oxidative decomposition
José David BadiaAlfonso Martinez-felipeL. Santonja-blascoAmparo Ribes-greussubject
Thermogravimetric analysisEnvironmental EngineeringMaterials scienceHot TemperatureEvolved gas analysisPolyestersKinetic analysisBioengineeringCombustionEvolved-Gas Analysis (EGA)Forensic engineeringThermal stabilityComputer SimulationRecyclingWaste Management and DisposalThermo-oxidative decomposition kineticsRenewable Energy Sustainability and the EnvironmentChemical process of decompositionThermal decompositionTermoplàsticsEnergetic valorizationGeneral MedicineThermal stabilityCiència dels materialsDecompositionChemical engineeringModels ChemicalPolylactide (PLA)MAQUINAS Y MOTORES TERMICOSOxidation-Reductiondescription
The combustion process of virgin and reprocessed polylactide (PLA) was simulated by multi-rate linear non-isothermal thermogravimetric experiments under O2. A complete methodology that accounted on the thermal stability and emission of gases was thoroughly developed. A new model, Thermal Decomposition Behavior, and novel parameters, the Zero-Decomposition Temperatures, were used to test the thermal stability of the materials under any linear heating rate. The release of gases was monitored by Evolved Gas Analysis with in-line FT-IR analysis. In addition, a kinetic analysis methodology that accounted for variable activation parameters showed that the decomposition process could be driven by the formation of bubbles in the melt. It was found that the combustion technologies for virgin PLA could be transferred for the energetic valorization of its recyclates. Combustion was pointed out as appropriate for the energetic valorization of PLA submitted to more than three successive reprocessing cycles
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-06-01 |