Graphene Derivatives in Biopolymer-Based Composites for Food Packaging Applications

Barra, Ana; Santos, Jéssica D.C.; Silva, Mariana R. F.; Nunes, Cláudia; Ruiz‐Hitzky, Eduardo; Gonçalves, Idalina; Yildirim, Selçuk; Ferreira, Paula; Marques, Paula A.A.P.

doi:10.3390/nano10102077

Cited by 39 publications

(25 citation statements)

References 235 publications

(339 reference statements)

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“…The applications found for these materials were corrosion protection [29,49,50], gas diffusion barriers [47], sensing [21], supercapacitors [35], environmental remediation [39], and food packaging [9,94]. Recently, we revised the use of graphene derivatives in biopolymer composite nanostructures for food packaging applications, which is an example of application where these green carbon nanostructures can be employed [95]. Improved tensile strength (78%), Young's modulus (102%) and fracture energy (83%); improved thermal stability (62%).…”

Section: Polymer Composites Containing Rgomentioning

confidence: 99%

Green Carbon Nanostructures for Functional Composite Materials

Barra

Nunes

Ruiz‐Hitzky

et al. 2022

IJMS

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Carbon nanostructures are widely used as fillers to tailor the mechanical, thermal, barrier, and electrical properties of polymeric matrices employed for a wide range of applications. Reduced graphene oxide (rGO), a carbon nanostructure from the graphene derivatives family, has been incorporated in composite materials due to its remarkable electrical conductivity, mechanical strength capacity, and low cost. Graphene oxide (GO) is typically synthesized by the improved Hummers’ method and then chemically reduced to obtain rGO. However, the chemical reduction commonly uses toxic reducing agents, such as hydrazine, being environmentally unfriendly and limiting the final application of composites. Therefore, green chemical reducing agents and synthesis methods of carbon nanostructures should be employed. This paper reviews the state of the art regarding the green chemical reduction of graphene oxide reported in the last 3 years. Moreover, alternative graphitic nanostructures, such as carbons derived from biomass and carbon nanostructures supported on clays, are pointed as eco-friendly and sustainable carbonaceous additives to engineering polymer properties in composites. Finally, the application of these carbon nanostructures in polymer composites is briefly overviewed.

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Section: Polymer Composites Containing Rgomentioning

confidence: 99%

Green Carbon Nanostructures for Functional Composite Materials

Barra

Nunes

Ruiz‐Hitzky

et al. 2022

IJMS

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“…As a result, food quality, nutrient, safety, and bioactive compound delivery are increased. The application of nanomaterials in the food packaging films and coatings is an emerging research field; however, various nanomaterials have been investigated, such as two-dimensional (2D) nanoclay and graphene, one-dimensional (1D) nanocellulose and nanotubes, and zero-dimensional (0D) nanodots (Li et al, 2018;Cui et al, 2020a;Barra et al, 2020;Ahankari et al, 2021;Nath et al, 2022). The resultant functional nanocomposite coatings exhibit enhanced functional properties demonstrating great potential for food packaging applications.…”

Section: Functional Nanocomposite Coatingsmentioning

confidence: 99%

“…Graphene is a 2D monatomic layer of sp 2 hybridized carbon atoms in a honeycomb lattice (Figure 10A). Graphene and its derivatives, including graphene oxide (GO) and reduced graphene oxide (rGO), possess a unique combination of exceptional mechanical properties, intriguing electronic properties, great antibacterial properties, and high thermal conductivities (Barra et al, 2020;Lin et al, 2021;Lin et al, 2022). Similar to CNTs, graphene and its derivatives are used as reinforcing nanofillers and antimicrobial agents for active food packaging, structural nanocomposites, biomedicine, and electronics (Anand et al, 2019;Barra et al, 2020).…”

Section: Nanocarbon-based Coatingsmentioning

confidence: 99%

Sustainable and Repulpable Barrier Coatings for Fiber-Based Materials for Food Packaging: A Review

Kathuria

Zhang

2022

Front. Mater.

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Due to the inherent hydrophilic nature and porosity of the paper fibers, hydrophobic polymeric materials, waxes, and inorganic fillers have been widely utilized as coatings and fillers, respectively, on a fiber-based substrate. Coatings also impart oxygen, aroma, and oil barrier properties desirable for food packaging applications. In addition, coatings improve the functional properties and characteristics of paper, including reduced water absorbance, enhanced surface finish, gloss finish, printability, readability, dimensional stability of the substrate, and antimicrobial performance. Such functional properties are highly desirable for consumer packaging applications. However, such coatings may limit the repulpability, recyclability, biodegradability, and compostability of paper and paperboard. In addition, the contamination of the substrate by-product also limits the recyclability of the fiber-based substrates, and the paper, paperboard, or corrugated material ends up in landfill sites. This review focuses on bioderived, biodegradable, compostable, and functional organic, inorganic, and hybrid hydrophobic coatings, which promote the circular economy by improving the repulpability or reduces carbon footprints.

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“…[1] Research in the packaging industry, dominated by both bio-based and biodegradable polymers, especially starch-based blends, polylactic acid (PLA), and polyhydroxyalkanoates (PHA) polymers has been prevalent recently. [2] Biodegradable-based polymers are an alternative to non-renewable polymer-based materials. PLA and PHA are biodegradable thermoplastic polymers for environmental sustainability.…”

Section: Introductionmentioning

confidence: 99%

Dielectric Biodegradable Biopolymer‐Based Graphene Nanocomposites for Use in the Packaging Industry and Capacitor Application

Gürler

Torğut

2022

ChemistrySelect

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In this study, polyhydroxyalkanoate (PHA) and polylactic acid (PLA)‐Graphene (G) nanocomposite films were synthesized by taking different concentrations of G via the solution casting process, and their structural, mechanical, opacity, thermal and dielectric properties were examined for the first time. Scanning electron microscopy (SEM) was used for investigating surface morphology. Films containing graphene were more opaque than films without graphene. The incorporation of graphene into the polymer matrix improved the mechanical property. The tensile strengths of the control PHA/PLA film and the graphene‐reinforced 1 %G‐PHA/PLA nanocomposite films were 18.98 and 24.34 MPa, respectively. Thermogravimetric analysis results showed that PHA/PLA−G nanocomposites had good thermal stability below 300 °C. Considering the dielectric measurements, it is seen that the dielectric constant (έ) and dielectric loss (ϵ”) decreased with increasing frequency and less changed at higher frequencies. The developer feature of graphene is remarkable in both parameters. The electrical conductivity of PHA/PLA−G nanocomposites was also examined as a function of frequency at room temperature. As the amount of G increased from 1 %wt to 5 %wt, the conductivity of the composites increased.

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Graphene Derivatives in Biopolymer-Based Composites for Food Packaging Applications

Cited by 39 publications

References 235 publications

Green Carbon Nanostructures for Functional Composite Materials

Green Carbon Nanostructures for Functional Composite Materials

Sustainable and Repulpable Barrier Coatings for Fiber-Based Materials for Food Packaging: A Review

Dielectric Biodegradable Biopolymer‐Based Graphene Nanocomposites for Use in the Packaging Industry and Capacitor Application

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