Loading…

Rheological and Mechanical Properties of Poly(lactic acid)/Bio-Based Polyethylene/Clay Biocomposites Containing Montmorillonite and Vermiculite Clays

This work aims to investigate the effect of organically modified montmorillonite (OMMT) and vermiculite (OVT) clays on the properties of poly(lactic acid) (PLA)/bio-based polyethylene (BioPE)/clay biocomposites. Ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) copolymer was used to improve t...

Full description

Saved in:
Bibliographic Details
Published in:Journal of polymers and the environment 2021-06, Vol.29 (6), p.1777-1788
Main Authors: Agrawal, Pankaj, Araújo, Aylanna P. M., Brito, Gustavo F., Cavalcanti, Shirley N., Alves, Amanda M., Freitas, Daniel M. G., Mélo, Tomás J. A.
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This work aims to investigate the effect of organically modified montmorillonite (OMMT) and vermiculite (OVT) clays on the properties of poly(lactic acid) (PLA)/bio-based polyethylene (BioPE)/clay biocomposites. Ethylene-methyl acrylate-glycidyl methacrylate (EMA-GMA) copolymer was used to improve the interactions between the clay and the bio-based polymers. X-ray diffraction (XRD) patterns indicated a good dispersion of the OMMT and OVT clays in the PLA/BioPE blend. Morphology analysis by scanning electron microscopy (SEM) revealed a substantial decrease in the BioPE particles domain size with the addition of OMMT and OVT clays to PLA/BioPE blend and a better wetting of BioPE phase in the presence of EMA-GMA, resulting in higher impact strength. Dynamic mechanical thermal analysis (DMTA) showed a decrease in the glass transition (T g ) and cold crystallization (T cc ) temperatures of PLA with the addition of OMMT and OVT clays to the PLA/BioPE blend. A significant change in the rheological properties (complex viscosity, storage modulus, and relaxation time) was observed with the addition of EMA-GMA copolymer to PLA/BioPE/clay biocomposites.
ISSN:1566-2543
1572-8919
DOI:10.1007/s10924-020-02015-z