Volume 300, Issue 3 p. 299-311
Full Paper

Thermo-mechanical characterization of bioblends from polylactide and poly(butylene adipate-co-terephthalate) and lignin

Mohamed A. Abdelwahab,

Department of Plant Agriculture, Bioproducts Discovery and Development Centre, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

On leave from Department of Chemistry, Tanta University, Tanta 31527, EgyptSearch for more papers by this author
Sarah Taylor,

Department of Plant Agriculture, Bioproducts Discovery and Development Centre, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

School of Engineering, Thornborough Building, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

Search for more papers by this author
Manjusri Misra,

Department of Plant Agriculture, Bioproducts Discovery and Development Centre, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

School of Engineering, Thornborough Building, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

Search for more papers by this author
Amar K. Mohanty,

Corresponding Author

Department of Plant Agriculture, Bioproducts Discovery and Development Centre, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

School of Engineering, Thornborough Building, University of Guelph, Guelph, Ontario, N1G 2W1 Canada

Search for more papers by this author
First published: 15 January 2015
Citations: 52

Abstract

This paper investigates the effect of the incorporation of organosolv lignin and a chain extender on the compatibility between polylactide and poly(butylene adipate-co-terephthalate). Bioblends were processed using melt extrusion and injection molding techniques. A reaction was observed during the melt processing as the force increased as the amount of ADR in the formulation increased. This reaction was investigated by Fourier transform infrared spectroscopy. The morphological images showed a good dispersion and an absence of phase separation by the inclusion of the chain extender. The incorporation of the chain extender enhanced the tensile properties and modulus characterization of the bioblends. Dynamic mechanical analysis and rheological characterization revealed that the addition of chain extender increased the storage modulus of the bioblends. Differential scanning calorimetry analysis showed a good miscibility between PLA and PBAT in the presence of OL and the chain extender, while thermogravimetric analysis showed enhancement in the thermal stability by inclusion of the chain extender.mame201400241-gra-0001

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.