Next Article in Journal
Announcement of the 2016 Polymers Young Investigator Award
Previous Article in Journal
Polydopamine Particle as a Particulate Emulsifier
Article Menu

Export Article

Open AccessArticle
Polymers 2016, 8(3), 61;

Rheological, Morphological and Mechanical Studies of Sustainably Sourced Polymer Blends Based on Poly(Lactic Acid) and Polyamide 11

Laboratoire Electrochimie et Environnement, ENIS, Université de Sfax, 3038 Sfax, Tunisia
Université de Lyon, Institut National des Sciences Appliquées de Lyon (INSA-LYON), CNRS, F-69361 Lyon, France
Ingénierie des Matériaux Polymères [email protected], UMR 5223, Lyon F-69621, France
Laboratoire de Mécanique des Contacts et des Structures LaMCoS, UMR 5259, Lyon F-69621, France
Hassan II Academy of Science and Technology, 10 100 Rabat, Morocco
Authors to whom correspondence should be addressed.
Academic Editor: Lloyd M. Robeson
Received: 6 November 2015 / Revised: 6 February 2016 / Accepted: 16 February 2016 / Published: 26 February 2016
Full-Text   |   PDF [4660 KB, uploaded 26 February 2016]   |  


The objective of this study was to gain a deep understanding of composition and compatibilization effects on the properties of entirely sustainably sourced polymer blends based on polylactide (PLA) and polyamide 11 (PA11). Generally, PLA cannot challenge regular commodity polymers due to its weak thermo-mechanical properties and its poor elongation properties. With this work, however, we present a promising route to overcome these drawbacks in order to enhance the processability of PLA: blending the polymer with various compositions of other ductile biopolymers such as PA11, as well as mixing PLA/PA11 blends with various amounts of a chain extender, Joncryl ADR®-4368, containing reactive epoxy functions, in a laboratory-scale twin-screw extruder. The effects on the rheological, morphological and mechanical properties were investigated. Results showed that a “self compatibilization” between PLA and PA11 chains can occur but it was found to be insufficient, contrary to recent work reported in the literature. The role of Joncryl as a compatibilizer for the PLA/PA11 system has been demonstrated by the significant decrease of particle size and interfacial tension as well as the improvement of ductile properties. Moreover, a new relaxation peak appeared in the relaxation spectrum, indicating the generation of a copolymer at the polymer-polymer interface. View Full-Text
Keywords: biosourced polymers; compatibilization; reactive extrusion; rheology biosourced polymers; compatibilization; reactive extrusion; rheology

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Walha, F.; Lamnawar, K.; Maazouz, A.; Jaziri, M. Rheological, Morphological and Mechanical Studies of Sustainably Sourced Polymer Blends Based on Poly(Lactic Acid) and Polyamide 11. Polymers 2016, 8, 61.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Polymers EISSN 2073-4360 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top