Biocomposite PBAT/lignin blown films with enhanced photo-stability
Journal article, 2022

Lignin can be obtained as a byproduct during cellulose-rich pulp fibers production and it is habitually treated as waste or intended for low-value destinations. However, due to UV absorption and mechanical properties, lignin can contribute to the fabrication of biodegradable blown films with superior performances. In this study, it was established the suitability of lignin for manufacturing biocomposite PBAT blown films with higher stiffness and photo-oxidation resistance. The effect of the filler concentration on the melt rheological behavior in non-isothermal elongational flow was investigated. The results allowed us to choose the correct filler concentration for producing films through a film blowing operation. The PBAT/lignin blown film composites displayed an increase of the elastic modulus if compared to neat PBAT films without affecting their elongation at break. Furthermore, the filler delayed the photo-oxidative degradation of PBAT hence potentially allowing open-air applications.

Lignin

PBAT

Biocomposite blown film

Photo-oxidative resistance

Author

Luigi Botta

University of Palermo

Vincenzo Titone

Irritec

University of Palermo

Rosalia Teresi

University of Palermo

Maria Costanza Scarlata

University of Palermo

Giada Lo Re

Chalmers, Industrial and Materials Science, Engineering Materials

Francesco Paolo La Mantia

University of Palermo

Francesco Lopresti

University of Palermo

International Journal of Biological Macromolecules

0141-8130 (ISSN) 18790003 (eISSN)

Vol. 217 161-170

Subject Categories

Polymer Chemistry

Paper, Pulp and Fiber Technology

Polymer Technologies

DOI

10.1016/j.ijbiomac.2022.07.048

PubMed

35820487

More information

Latest update

7/25/2022