Impact of corona treatment on PLA film properties

Autor: Eric Lesniewska, Jeancarlo R. Rocca-Smith, Francesca Piasente, Thomas Karbowiak, Alessandro Sensidoni, Eric Bourillot, Dominique Champion, Eva Marcuzzo, Olivier Heinz, Frédéric Debeaufort, Pauline Vitry
Přispěvatelé: Procédés Alimentaires et Microbiologiques ( PAM ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Dipartimento di Scienze AgroAlimentari, Ambientali e Animali - [Udine] ( DI4A ), Università degli Studi di Udine - University of Udine [Italie], Taghleef Industries, Laboratoire Interdisciplinaire Carnot de Bourgogne ( LICB ), Université de Bourgogne ( UB ) -Centre National de la Recherche Scientifique ( CNRS ), Département Génie biologique [IUT de Dijon/Auxerre - université de Bourgogne], Institut Universitaire de Technologie - IUT Dijon/Auxerre, Université de Bourgogne ( UB ) -Université de Bourgogne ( UB ), European Social Fund - Friuli Venezia Giulia Region FP1340303009, RMB plateau of UMR PAM for mechanical, goniometry and thermal analyses and Marie Laure Leonard, Procédés Alimentaires et Microbiologiques (PAM), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Dipartimento di Scienze AgroAlimentari, Ambientali e Animali - [Udine] (DI4A), Laboratoire Interdisciplinaire Carnot de Bourgogne (LICB), Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS), Institut Universitaire de Technologie - Dijon/Auxerre (IUT Dijon), Université de Bourgogne (UB)-Université de Bourgogne (UB)
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Materials Chemistry2506 Metals and Alloys
Biodegradable polymer
Corona treatment
Food packaging
Poly (lactic acid) – PLA
Surface modification
Condensed Matter Physics
Mechanics of Materials
Polymers and Plastics
Thermogravimetric analysis
Materials science
02 engineering and technology
010402 general chemistry
01 natural sciences
law.invention
Nanocomposites
Crystallinity
Polymer surface modification
Differential scanning calorimetry
X-ray photoelectron spectroscopy
law
[SDV.IDA]Life Sciences [q-bio]/Food engineering
Polylactic acid films
Materials Chemistry
Atmospheric plasma
Poly (lactic acid) - PLA
Composite material
Crystallization
Nanocomposite
[ SDV.IDA ] Life Sciences [q-bio]/Food engineering
021001 nanoscience & nanotechnology
0104 chemical sciences
Mesophase
Food
0210 nano-technology
Zdroj: Polymer Degradation and Stability
Polymer Degradation and Stability, Elsevier, 2016, Special Issue : 5th International Conference on Bio-based and Biodegradable Polymers (BIOPOL-2015), 132, pp.109-116. 〈10.1016/j.polymdegradstab.2016.03.020〉
Polymer Degradation and Stability, Elsevier, 2016, Special Issue : 5th International Conference on Bio-based and Biodegradable Polymers (BIOPOL-2015), 132, pp.109-116. ⟨10.1016/j.polymdegradstab.2016.03.020⟩
ISSN: 0141-3910
1873-2321
DOI: 10.1016/j.polymdegradstab.2016.03.020〉
Popis: International audience; Different types of PLA films treated by corona are currently available in the market for coating or printing applications. However, data relative to its impact on PLA film properties are scarce and do not generally consider industrial scale production. The objective of this study was to assess the impact of corona treatment on the surface, structure and barrier properties of bi-oriented PLA films produced at industrial scale. Thus, a comparative study between corona treated (CT) and non-corona treated (NCT) PLA films was conducted.The surface of films was studied using Attenuated Total Reflectance Fourier Infrared Spectroscopy (ATR-FTIR), X-ray Photoelectron Spectroscopy (XPS), Atomic Force Microscopy (AFM) and goniometry measurements. The structure of films was analyzed with thermogravimetric analysis (TGA), differential scanning calorimetry (DSC) and uniaxial tensile analysis. The barrier properties of films to three gases (He, O-2, CO2) were also determined.This study unambiguously revealed that corona treatment led to modifications in both surface and bulk of PIA films. In particular, surface analysis displayed the well-known capability of corona treatment to chemically and physically modify the surface of PLA films at the nanometer scale by increasing polarity and roughness. The structural analysis displayed a slight increase in the crystallinity degree and slight modifications in mechanical properties of films. This probably originated from temperature increase associated to corona treatment, which favored physical changes (e.g. relaxation, crystallization) of a part of the bi-orientated PIA chains, and therefore highlights the importance of such an industrial step on the film properties for packaging applications. As a result of these modifications, the barrier properties of films to three gases (He, O-2, CO2) are also slightly improved.
Databáze: OpenAIRE
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