Please use this identifier to cite or link to this item: http://hdl.handle.net/2067/46087
Title: Improving the flexibility and compostability of starch/poly(butylene cyclohexanedicarboxylate)-based blends
Authors: Dominici, Franco
Gigli, Matteo
Armentano, Ilaria 
Genovese, Laura
Luzi, Francesca
Torre, Luigi
Munari, Andrea
Lotti, Nadia
Journal: CARBOHYDRATE POLYMERS 
Issue Date: 2020
Abstract: 
Fully biobased blends of thermoplastic starch and a poly(butylene cyclohexanedicarboxylate)-based random copolyester containing 25 % of adipic acid co-units (PBCEA) are prepared by melt blending and direct extrusion film casting. The obtained films are characterized from the physicochemical and mechanical point of view and their fragmentation under composting conditions is evaluated. The results demonstrate that the introduction of adipic acid co-units in the PBCE macromolecular chains permits to decrease the blending temperature, thus avoiding unwanted starch degradation reactions. Moreover, the presence of small amounts of citric acid as compatibilizer further improves the interfacial adhesion between the two components and promotes the formation of micro-porosities within the films. The synergistic combination of these factors leads to the development of materials showing an elastomeric behavior, i.e. no evident yield and elongation at break higher than 450 %, good moisture resistance and fast fragmentation in compost.
URI: http://hdl.handle.net/2067/46087
ISSN: 0144-8617
DOI: 10.1016/j.carbpol.2020.116631
Appears in Collections:A1. Articolo in rivista

Files in This Item:
File Description SizeFormat Existing users please
1-s2.0-S0144861720308055-main.pdf1.83 MBAdobe PDF    Request a copy
Show full item record

SCOPUSTM   
Citations 20

7
Last Week
0
Last month
0
checked on Feb 21, 2024

Page view(s)

42
Last Week
0
Last month
0
checked on Feb 21, 2024

Download(s)

3
checked on Feb 21, 2024

Google ScholarTM

Check

Altmetric


All documents in the "Unitus Open Access" community are published as open access.
All documents in the community "Prodotti della Ricerca" are restricted access unless otherwise indicated for specific documents