Mechanical recycling simulation of polylactide using a chain extender
ARTIGO
Inglês
This work studied the commercial chain extender effectiveness on the mechanical recycling simulation of a pristine PLA using a single‐screw extruder. We processed the material by two extrusion cycles to simulate a recycling process. In the second extrusion, part of the material was processed with...
This work studied the commercial chain extender effectiveness on the mechanical recycling simulation of a pristine PLA using a single‐screw extruder. We processed the material by two extrusion cycles to simulate a recycling process. In the second extrusion, part of the material was processed with chain extender and we evaluated its molecular weight, thermal degradation, melt flow index (MFI), thermal transitions, and mechanical properties. The molecular weight for the extruded neat PLA decreased and the MFI and crystallinity degree increased while the mechanical properties worsened. The onset thermal degradation occurred at lower temperature for the processed material. With the introduction of the chain extender, there was a recovery of properties with the increase in the polymer molecular weight, decrease in the MFI and crystallinity degree, and an improvement in both thermal stability and mechanical properties in relation to recycled PLA without this component
COORDENAÇÃO DE APERFEIÇOAMENTO DE PESSOAL DE NÍVEL SUPERIOR - CAPES
FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP
2014/09883‐5
Aberto
Mechanical recycling simulation of polylactide using a chain extender
Mechanical recycling simulation of polylactide using a chain extender
Fontes
Advances in polymer technology Vol. 37, no. 6 (Oct., 2018), p. 2053-2060 |