Graphene‐modified poly(lactic acid) for packaging: Material formulation, processing and performance

Barletta, Massimiliano; Puopolo, M.; Tagliaferri, V.; Vesco, Silvia

doi:10.1002/app.42252

Cited by 21 publications

(12 citation statements)

References 27 publications

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“…However, the light transmittance for the composite film was significantly decreased to only ca 20% at 600 nm, while the pure thiol‐ene film exhibited high transparency with a transmittance value of 88%. Other researchers also found that the addition of graphene nano‐platelets or nanoparticles could increase the pencil hardness of the materials …”

Section: Resultsmentioning

confidence: 94%

Preparation of transparent nanocomposites from UV‐ and thermo‐curable epoxyacrylate and graphene oxide for the application of corrosion protection coatings

Syu

Lin

Yeh

et al. 2019

Polymer International

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In this study, we report UV‐ and thermo‐curable epoxyacrylate/graphene oxide (EA/GO) nanocomposites that present good transparency, excellent pencil hardness and promising improvement in corrosion protection. A dual‐curable EA oligomer with one terminal epoxide and one double bond at the other end was synthesized by reaction of diglycidyl ether of bisphenol‐A and acrylic acid. After mixing EA and GO with the curing agents and reactive diluent followed by UV cure and thermo‐cure, the resulting EA/GO films on a glass slide with GO loading up to 3 phr exhibited over 86% light transmittance. Furthermore, the pencil hardness was enhanced from 3H for EA to 6H for the EA/GO composite at 2 phr GO loading. The corrosion protection of the EA/GO coatings was evaluated by a potentiodynamic polarization technique and electrochemical impedance spectra. The corrosion potential (Ecorr) of the EA/GO‐coated steel increased with increasing GO loading. Meanwhile, Nyquist and Bode plots indicated that the higher the GO content in the EA/GO coating was, the higher was the coating resistance and also the charge transfer resistance after immersion in salt solution. All these results proved that the GO had positive effects on enhancement of the corrosion resistance. The improved corrosion protection by the EA/GO coatings was mainly due to the enhanced hydrophobicity, the deviation of electron transfer and the increased tortuosity of the diffusion path. The improved corrosion protection and hardness together with the useful dual‐curability make the EA/GO nanocomposite a competitive candidate for corrosion protection coatings. © 2019 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 94%

Preparation of transparent nanocomposites from UV‐ and thermo‐curable epoxyacrylate and graphene oxide for the application of corrosion protection coatings

Syu

Lin

Yeh

et al. 2019

Polymer International

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“…18 Several authors have reported barrier improvements by using graphene sheets or graphene oxide in polymer composites. [57][58][59][60] The mechanisms underlying the barrier improvement of nanoplate-based composites is the wellknown 'tortuous path' principle, schematized in Figure 2.…”

Section: Nanomaterial-polymer Composites For Improved Barrier Propertiesmentioning

confidence: 99%

Outlook and Challenges of Nanotechnologies for Food Packaging

et al. 2016

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Nanotechnology has been considered to have high potential for food packaging applications very early on. The ability to provide additional consumer benefits through the improvement of key properties of packaging materials and the creation of new functionalities means that the increased use of nanomaterials and nanotechnologies is highly likely. It has however up to now failed to reach the widespread use that was initially expected, mainly because of remaining uncertainties on the safety of these materials during the various stages of their life-cycle, which limit legal and consumer acceptance.This paper aims at presenting the latest developments in the field of nanotechnologies for food packaging applications, describing the legal framework linked to their usage and attempts to clarify the current knowledge of the safety of these materials both for the consumer and the environment.It is shown that particulate migration into foodstuff is absent in many applications, which drastically reduces the potential risk during the use phase of packaging materials, i.e. the exposure of the consumer to nanoparticles. Other release routes are also evaluated, showing that, although safe in normal use conditions, prudence should still be used, especially with regard to release after disposal of the materials.

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“…The research group is using a combination of graphene-enhanced and carbon nanotube-enhanced 3D printing materials to tailor the properties. Research is also focusing on modifying polymers with graphene [36]. Although graphene has also been referred to as a remarkable material, homogeneous mixtures of graphene and polymers are essential to exploit the unique proper-ties [37].…”

Section: Polymer Integrationmentioning

confidence: 99%

Carbon Nanotubes and Graphene as Additives in 3D Printing

Acquah¹,

Leonhardt²,

S.Nowotarski³

et al. 2016

Carbon Nanotubes - Current Progress of Their Polymer Composites

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3D printing is a revolutionary technology for the consumer and industrial markets. As the technology for 3D printing has expanded, the need for multi-materials that support fused deposition modeling and other forms of additive manufacturing is increasing. 3D printing filaments infused with carbon nanotubes and graphene are now commercially available, with the promise of producing conductive composites. This chapter explores some of the research, products, and challenges involved in bringing the next generation of functional printing materials to the consumer market.

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Graphene‐modified poly(lactic acid) for packaging: Material formulation, processing and performance

Cited by 21 publications

References 27 publications

Preparation of transparent nanocomposites from UV‐ and thermo‐curable epoxyacrylate and graphene oxide for the application of corrosion protection coatings

Preparation of transparent nanocomposites from UV‐ and thermo‐curable epoxyacrylate and graphene oxide for the application of corrosion protection coatings

Outlook and Challenges of Nanotechnologies for Food Packaging

Carbon Nanotubes and Graphene as Additives in 3D Printing

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