RT Journal Article
T1 Thermal, rheological and microstructural characterisation of commercial biodegradable polyesters
A1 Cock, Felix
A1 Cuadri Vega, Antonio Abad
A1 García Morales, Moisés
A1 Partal López, Pedro
AB Growing environmental concerns along with new regulations are forcing the industries to seek renewable raw materials for their products. In this sense, this work studies the thermo-rheological properties of commercial biodegradable polyesters: two polylactic acids (PLAs), a polycaprolactone (PCL) and a PLA/PCL blend. A comprehensive material characterization by means of thermogravimetry/differential thermal analysis (TG/DTA), differential scanning calorimetry (DSC), dynamic mechanical thermal analysis (DMTA), frequency sweep tests and polarized light microscopy was carried out. The results have shown that the material thermal/thermo-rheological properties and, therefore, its microstructure, are strongly dependent on its thermal history. This fact arises from the slow recrystallization kinetics shown by PLA. Interestingly, PCL may play the role of nucleating agent for the PLA crystallization, making it faster. This issue must be carefully considered so that a reliable material characterization is achieved.
PB Elsevier
SN 0142-9418
SN 1873-2348 (electrónico)
YR 2013
FD 2013
LK http://hdl.handle.net/10272/12111
UL http://hdl.handle.net/10272/12111
LA eng
NO Cock, F., Cuadri Vega, A.A., García Morales, M., Partal López, P.: "Thermal, rheological and microstructural characterisation of commercial biodegradable polyesters". Polymer Testing. Vol. 32, n. 4, págs. 716-723, (2013). DOI: 10.1016/j.polymertesting.2013.03.015
NO This work is part of a research project sponsored by the "Ministerio de Economia y Competitividad" (ref. MAT2011-29275-C02-01). The authors gratefully acknowledge its financial support. A.A. Cuadri also thanks "Ministerio de Educacion" for the concession of a F.P.U. research grant (AP2008-01419).This work is part of a research project sponsored by the “Ministerio de Economía y Competitividad” (ref. MAT2011-29275-C02-01). The authors gratefully acknowledge its financial support. A.A. Cuadri also thanks “Ministerio de Educación” for the concession of a F.P.U. research grant (AP2008-01419).
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026