Synergistic effect of polylactic acid(PLA) and Poly(butylene succinate-co-adipate) (PBSA) based sustainable, reactive, super toughened eco-composite blown films for flexible packaging applications

2020 ◽  
Vol 83 ◽  
pp. 106130 ◽  
Author(s):  
Bishwabhusana Palai ◽  
Smita Mohanty ◽  
Sanjay Kumar Nayak
Keyword(s):  
Synergistic Effect ◽  
Polylactic Acid ◽  
Butylene Succinate ◽  
Blown Films ◽  
Flexible Packaging

scholarly journals Antibacterial Activity and Cytotoxicity of Immobilized Glucosamine/Chondroitin Sulfate on Polylactic Acid Films

Polymers ◽  
2019 ◽  
Vol 11 (7) ◽  
pp. 1186 ◽  
Author(s):  
Ilkay Karakurt ◽  
Kadir Ozaltin ◽  
Daniela Vesela ◽  
Marian Lehocky ◽  
Petr Humpolíček ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Synergistic Effect ◽  
Chondroitin Sulfate ◽  
Polylactic Acid ◽  
Photoelectron Spectroscopy ◽  
Polymeric Materials ◽  
Bactericidal Effect ◽  
In Vitro Cytotoxicity ◽  
Major Drawback

Polylactic acid (PLA) is one of the most produced polymeric materials, due to its exceptional chemical and mechanical properties. Some of them, such as biodegradability and biocompatibility, make them attractive for biomedical applications. Conversely, the major drawback of PLA in the biomedical field is their vulnerability to bacterial contamination. This study focuses on the immobilization of saccharides onto the PLA surface by a multistep approach, with the aim of providing antibacterial features and evaluting the synergistic effect of these saccharides. In this approach, after poly (acrylic acid) (PAA) brushes attached non-covalently to the PLA surface via plasma post-irradiation grafting technique, immobilization of glucosamine (GlcN) and chondroitin sulfate (ChS) to the PAA brushes was carried out. To understand the changes in surface properties, such as chemical composition, surface topography and hydrophilicity, the untreated and treated PLA films were analyzed using various characterization techniques (contact angle, scanning electron microscopy, X-ray photoelectron spectroscopy). In vitro cytotoxicity assays were investigated by the methyl tetrazolium test. The antibacterial activity of the PLA samples was tested against Escherichia coli and Staphylococcus aureus bacteria strains. Plasma-treated films immobilized with ChS and GlcN, separately and in combination, demonstrated bactericidal effect against the both bacteria strains and also the results revealed that the combination has no synergistic effect on antibacterial action.

Synergistic effect of compatibilizer and sepiolite on the morphology of poly(3-hydroxybutyrate-co-3-hydroxyvalerate)/poly(butylene succinate) blends

2016 ◽  
Vol 53 ◽  
pp. 19-28 ◽  
Author(s):  
Amirouche Chikh ◽  
Aida Benhamida ◽  
Mustapha Kaci ◽  
Isabelle Pillin ◽  
Stéphane Bruzaud
Keyword(s):  
Synergistic Effect ◽  
Butylene Succinate

scholarly journals Understanding bioplastic materials - current state and trends

2020 ◽  
pp. 51-51
Author(s):  
Sanja Jeremic ◽  
Jelena Milovanovic ◽  
Marija Mojicevic ◽  
Sanja Skaro-Bogojevic ◽  
Jasmina Nikodinovic-Runic
Keyword(s):  
Polylactic Acid ◽  
Carbon Footprint ◽  
Biodegradable Materials ◽  
Plastic Pollution ◽  
Butylene Succinate ◽  
Environmental Threats ◽  
Current State ◽  
Recent Developments

Plastic pollution is now considered one of the largest environmental threats facing humans and animals globally. Development of bioplastic materials may offer part of the solution as bioplastics include both nondegradable and biodegradable materials with both being important for sustainability. Bioplastic materials are currently being designed to encompass minimal carbon footprint, high recycling value and complete biodegradability. This review examines recent developments and trends in the field of bioplastic materials. A range of the most utilized bioplastic materials is presented (polylactic acid (PLA), polyhydroxy-alkanoate (PHA), starch, cellulose, bio-based poly(butylene succinate) (bio-PBS) and bio-polyethylene (bio-PE)) including their production, application and degradation options.

scholarly journals Functionalized blown films of plasticized polylactic acid/chitin nanocomposite: Preparation and characterization

2016 ◽  
Vol 92 ◽  
pp. 846-852 ◽  
Author(s):  
Natalia Herrera ◽  
Hendrik Roch ◽  
Asier M. Salaberria ◽  
Maximiliano A. Pino-Orellana ◽  
Jalel Labidi ◽  
...  
Keyword(s):  
Polylactic Acid ◽  
Blown Films

scholarly journals Nanosilicates in Compatibilized Mixed Recycled Polyolefins: Rheological Behavior and Film Production in a Circular Approach

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2128
Author(s):  
Emilia Garofalo ◽  
Luciano Di Maio ◽  
Paola Scarfato ◽  
Annalisa Apicella ◽  
Antonio Protopapa ◽  
...  
Keyword(s):  
Rheological Behavior ◽  
Mechanical Recycling ◽  
Recycled Materials ◽  
Blown Films ◽  
Global Challenge ◽  
High Resource ◽  
Flexible Packaging ◽  
Closing The Loop ◽  
Upgrading Strategies ◽  
Pp Blends

Currently, plastic packaging represents a global challenge and has become a key point of attention for governments, media and consumers due to the visibility of the waste it generates. Despite their high resource efficiency, the perceived non-recyclability of polymeric films risks precluding them from being a relevant packaging solution in a circular economy approach. In this regard, the aim of this study was to implement a strategy to try closing the loop, via the mechanical recycling of post-consumer flexible packaging of small size (denoted as Fil-s) to obtain new films. In particular, two lots of Fil-s were used, which are PE/PP blends differing for the PP content and the presence of polar contaminants. The suitability for film blowing extrusion of these recycled materials, as such and after the addition of a compatibilizer and/or a lamellar nanosilicate, was evaluated. It was first evidenced that the difficulty of producing blown films with the pristine recycled materials, due to the frequent bubble breakages, occurring even at low draw ratios. Moreover, the shear and extensional rheological behavior of all Fil-s based systems was usefully correlated with their processability features, evidencing the key roles of the nanofiller to stabilize the bubble and of the compatibilizer to ensure a uniform film deformation, avoiding its premature breakage. Even if the adopted upgrading strategies allowed the production of blown films with both types of Fil-s, the different components of the recycled matrices were proven to significantly affect their processability and final film performances.

scholarly journals Development of Eco-Sustainable PBAT-Based Blown Films and Performance Analysis for Food Packaging Applications

Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5395
Author(s):  
Arianna Pietrosanto ◽  
Paola Scarfato ◽  
Luciano Di Maio ◽  
Loredana Incarnato
Keyword(s):  
Food Packaging ◽  
Mechanical Response ◽  
Chain Extender ◽  
Poly Lactic Acid ◽  
Blown Films ◽  
Beneficial Effects ◽  
Flexible Packaging ◽  
Improved Performance ◽  
And Performance ◽  
Good Transparency

In this work, eco-sustainable blown films with improved performance, suitable for flexible packaging applications requiring high ductility, were developed and characterized. Films were made by blending two bioplastics with complementary properties—the ductile and flexible poly(butylene-adipate-co-terephthalate) (PBAT) and the rigid and brittle poly(lactic acid) (PLA)—at a 60/40 mass ratio. With the aim of improving the blends’ performance, the effects of two types of PLA, differing for viscosity and stereoregularity, and the addition of a commercial polymer chain extender (Joncryl®), were analyzed. The use of the PLA with a viscosity ratio closer to PBAT and lower stereoregularity led to a finer morphology and better interfacial adhesion between the phases, and the addition of the chain extender further reduced the size of the dispersed phase domains, with beneficial effects on the mechanical response of the produced films. The best system composition, made by the blend of PBAT, amorphous PLA, and the compatibilizer, proved to have improved mechanical properties, with a good balance between stiffness and ductility and also good transparency and sealability, which are desirable features for flexible packaging applications.

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