Antibacterial nano silver coating on the surface of polyethylene films using corona discharge

Álvarez (2015) Preparation and characterization of Polyethylene/Clay/Silver nanocomposites using functionalized polyethylenes as an adhesion promoter,The performance of Polyethylene (PE)/Clay/Silver nanocomposites is dependent to a great extent on the properties of filler-matrix interface. To improve the interfacial properties in PE/Clay/Silver composites, different types of compatibilizers or adhesion promoters were introduced. The compatibilization provided by maleic anhydride (MA), itaconic acid (IA) and 2-[2-(dimethylamine)-ethoxy] ethanol (DMAE) functionalized PEs for forming PE-based nanocomposites was studied and compared. IA was grafted into PE by melt mixing to obtain PEgIA (compatibilizer 1), thereafter, PEgIA and PEgMA (compatibilizer 2) were reacted with DMAE also by melt mixing to obtain PEgI-DMAE (compatibilizer 3) and PEgM-DMAE (compatibilizer 4). These compatibilizers were reacted using ultrasound with a solution of AgNO 3 0.04 M and ethylene glycol. Ammonium hydroxide was added in a ratio of 2:1 M with respect to silver nitrate. These silver coated compatibilizers were mixed with PE and with a quaternary ammonium modified montmorillonite clay (Nanomer I28E), thus forming the different hybrid PE/Clay/Silver nanocomposites. FTIR confirmed the formation of these compatibilizers. All the DMAE compatibilized nanocomposites had better filler (clay and silver) dispersion and exfoliation. XRD, oxygen and water transmission rate as well as antimicrobial properties attained showed that the PEgI-DMAE produced the better dispersed PE, clay and silver nanocomposites. The obtained nanocomposites showed enhanced barrier properties and outstanding antimicrobial properties against bacteria, E. coli. PEgI-DMAE offers an outstanding capability for preparing nanocomposites with highly exfoliated and dispersed filler into the PE matrix that offers a new option for obtaining hybrid nanocomposites with enhanced properties to be used in packaging applications.

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“…Elemental silver particles (Ag(s)) need to be oxidized by dissolved oxygen (O 2 (aq.)) in order to release silver ions [24][25][26][27]:…”

Section: Journal Of Adhesion Science and Technology 1919mentioning

confidence: 99%

Preparation and characterization of Polyethylene/Clay/Silver nanocomposites using functionalized polyethylenes as an adhesion promoter

Ibarra-Alonso

Sánchez-Valdés

Ramı́rez-Vargas

et al. 2015

Journal of Adhesion Science and Technology

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“…Nanosilver is well known for its broad spectrum antibacterial properties and as such, it has been widely incorporated into a range of packaging materials (Emamifar and others ; Guo and others ; Kanmani and Rhim ; Ni and others ; Sadeghnejad and others ). Although the primary goal of incorporating nanosilver into packaging films is to impart AM activity and improve food safety, there are some additional benefits that can be gained from this additive.…”

Section: Mechanical Properties Of Nanoclay Composites Used In Food Pamentioning

confidence: 99%

“…Although, there are currently only a limited number of commercially produced packaging materials that incorporate NPs, there is an increasing recognition of the potential use of NPs in AM packaging systems for the preservation of food products against microbial contamination and for the extension of the shelf‐life of the packaged products (Busolo and others ). Several researchers have investigated the potential use of nanosilver in AM packaging systems against various microorganisms, particularly on agar‐based and liquid culture media and on actual foodstuffs (Emamifar and others ; Kanmani and Rhim ; Ni and others ; Sadeghnejad and others ).…”

Section: Introductionmentioning

confidence: 99%

Review of Mechanical Properties, Migration, and Potential Applications in Active Food Packaging Systems Containing Nanoclays and Nanosilver

Kuorwel

Cran

Orbell

et al. 2015

Comp Rev Food Sci Food Safe

126

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The incorporation of nanomaterials into a range of polymeric materials shows great potential for developing new active food packaging systems. Although there are many suggested benefits of nanoparticles (NPs) in food packaging, there are also potential risks due to the possibility of such particles migrating into foodstuffs. This has obvious implications for human health and it may also negatively impact on marketing and consumer confidence. This review focuses on 2 particular types of nanomaterials: nanoclays and nanosilver, with a view to examining the effects of these on system mechanical properties (nanoclays) and antimicrobial efficacy (nanosilver). It further reports on the various migration studies, techniques for characterization, and measurement of NPs as well as the potential migration of NPs from packaging into foodstuffs. Assessment of the literature to date suggests there is an urgent need for further research in order to devise better NP detection methods and to determine the likelihood of their migration from packaging materials into foodstuffs.

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“…Active packaging is an innovative area which causes improving the protection function of a package, enhancing safety of the product, and shelf life extension. Therefore, it enhances the food safety, quality maintenance of the food products, and suppressing microbial food‐borne illnesses . Consequently, many attempts have been made to improve their antimicrobial properties in order to develop food safety and shelf life .…”

Section: Introductionmentioning

confidence: 99%

Application of paraffin and silver coated titania nanoparticles in polyethylene nanocomposite food packaging films

nasab

Jalili

Farrokhpay

2017

J of Applied Polymer Sci

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In this work, 3% and 5% TiO2/Ag nanoparticles were dispersed in low‐density polyethylene through melt blending process, and subsequently nanocomposite films were prepared by hot pressing. Paraffin was used for the first time in this work as compatibilizer agent. The effect of TiO2/Ag nanoparticle content, as well as compatibilizer dosage on the antimicrobial, morphological, mechanical, and optical performance of the nanocomposite films was investigated. Improved mechanical properties of the nanocomposite films were found on using paraffin as compatibilizer in comparison with the neat low‐density polyethylene (LDPE) films. The optical study results also showed that the addition of TiO2/Ag to the LDPE films does not drastically change the film appearance other than making them more reddish. The fabricated nanocomposites presented in this study could be a suitable choice for food packaging (subject to further investigation of the food packaging behavior). The results showed that both TiO2/Ag nanoparticle and compatibilizer are needed to prevent the bacteria growth in the film. The best result was obtained by using 5% nanoparticle and 4% paraffin compatibilizer where the bacteria growth rate was significantly reduced by 95%. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45913.

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Antibacterial nano silver coating on the surface of polyethylene films using corona discharge

Cited by 67 publications

References 37 publications

Preparation and characterization of Polyethylene/Clay/Silver nanocomposites using functionalized polyethylenes as an adhesion promoter

Preparation and characterization of Polyethylene/Clay/Silver nanocomposites using functionalized polyethylenes as an adhesion promoter

Review of Mechanical Properties, Migration, and Potential Applications in Active Food Packaging Systems Containing Nanoclays and Nanosilver

Application of paraffin and silver coated titania nanoparticles in polyethylene nanocomposite food packaging films

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