Preparation, Mechanical and Antimicrobial Properties of SiO2/ Poly(butylene adipate-co-terephthalate) Films for Active Food Packaging

Polymers for Advanced Techs

2016

134

Packaging of foods in high barrier materials is essential to attain food safety. Nanocomposite technology is leading in search of the earlier said kind of packaging materials. The role of zinc oxide (ZnO) loadings on poly(butylene adipate‐co‐terephthalate) (PBAT) structure were investigated, in addition to that packaging properties such as barrier, thermal, and mechanical properties were studied. Antimicrobial films are developed based on PBAT and ZnO nanoparticles. The nanocomposites exhibits a significant increase in the mechanical and thermal stability. The resulting PBAT/ZnO nanofilms show superior antimicrobial activity against Escherichia coli and Staphylococcus aureus. Copyright © 2016 John Wiley & Sons, Ltd.

Section: Methodsmentioning

confidence: 99%

Section: Preparation Of Pbat/zno Nanocomposite Filmsmentioning

confidence: 99%

ZnO/PBAT nanocomposite films: Investigation on the mechanical and biological activity for food packaging

Polymers for Advanced Techs

2016

134

“…To improve the overall properties of PBAT for the suitable applications in the field of packaging, Venkatesan et al introduce metal oxide nanoparticles to the PBAT. [21][22][23] Researchers also try to improve the properties of PBAT by blending with other conventional polymers.…”

Section: Introductionmentioning

confidence: 99%

TiO₂ nanoparticles/poly(butylene adipate‐co‐terephthalate) bionanocomposite films for packaging applications

Polymers for Advanced Techs

2017

In this present study, biodegradable PBAT nanocomposites containing different weight percentages (1, 3, 5, 7, and 10% w/w) of TiO2 nanoparticles were prepared by using solvent casting technique, chloroform as a solvent. The microstructure and morphology of the as‐synthesized poly(butylene adipate‐co‐terephthalate) (PBAT)/TiO2 nanocomposite films were characterized by Fourier‐transform infrared, X‐ray diffraction, scanning electron microscopy, and transmission electron microscope. The thermal degradation of PBAT composites was studied by using thermogravimetric analysis. The mechanical strength of the films was improved by increasing TiO2 concentration. Tensile strength increased from 32.60 to 63.26 MPa, respectively. Barrier properties of the PBAT/TiO2 nanocomposites were investigated by using an oxygen permeability tester. The oxygen permeability (oxygen transmission rate) decreased with increasing the TiO2 nanoparticle concentrations. The PBAT/TiO2 nanocomposite films showed profound antimicrobial activity against both Gram‐positive and Gram‐negative foodborne pathogenic bacteria, namely, Escherichia coli and Staphylococcus aureus, to understand to the zone of inhibition. These results indicated that filler–polymer interaction is important and the role of the TiO2 as a reinforcement in the nanocomposites was evident. Copyright © 2017 John Wiley & Sons, Ltd.

“…The antimicrobial activity of different PBAT and its nanocomposites against E.coli and S. aureus is evaluated using zone of bacterial inhibition method [14,15]. Briefly, two circular discs (11 mm diameter) were cut each from neat PBAT, and PBAT/SnO 2 composites and UV sterilized for 15 min and immersed in 10-mL TSB medium in tubes.…”

Section: Antimicrobial Activitymentioning

confidence: 99%

Poly(butylene adipate-co-terephthalate) bionanocomposites: effect of SnO2 NPs on mechanical, thermal, morphological, and antimicrobial activity

Adv Compos Hybrid Mater

2018

Self Cite

As the demand for ready-made food is increasing, it is necessary to develop effective food packaging materials with antimicrobial activity to ensure microbiological safety of food. In this study, SnO 2 nanoparticles (SnO 2 NPs) are prepared with chemical precipitation method. Different amounts of SnO 2 NP S (1, 3, 5, 7, and 10 wt%) are reinforced into the poly(butylene adipate-coterephthalate) (PBAT) using ultrasonication method, and the nanocomposites are made using solvent casting method. The structural properties of nanocomposites have been analyzed with FT-IR, XRD, SEM, and TEM. The investigation on structural properties is confirming the strong attraction between the SnO 2 and the PBAT. Mechanical tests like elongation at break and tensile strength have been investigated, and our results show the enhancement in mechanical strength of nanocomposites over pure PBAT. This is due to uniform dispersion of SnO 2 NPs in the PBAT matrix and strong interaction between the carbonyl group of PBAT and oxygen atom of SnO 2 . Oxygen and water permeability of PBAT/SnO 2 showed that the nanocomposites had better barrier properties than the PBAT. In addition, the PBAT/SnO 2 (PSO-10) nanocomposites exhibited profound antibacterial activity against the food-borne pathogens E.coli and S. aureus. Therefore, PBAT/SnO 2 nanocomposites can be used for food packaging applications as it shows a good mechanical, thermal, degradation, barrier, and antimicrobial activities.