Polymer/Graphene Nanocomposites for Food Packaging

Merritt, Steven; Wan, Chaoying; Shollock, Barbara A.; Patole, Samson N.; Haddleton, David M.

doi:10.1002/9781119160243.ch8

Cited by 5 publications

(2 citation statements)

References 50 publications

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“…In recent decades, as a result of their advantages over other conventional materials (such as plastics), a variety of polymer/nanoclay materials have been developed with reduced permeability to gases and improved thermal and mechanical properties [150]. Innovative polymer/nanoclay composites may also be designed as an intelligent packaging material to control permeability to select gases, such as CO 2 and CH 4 , thereby extending the shelf life of preserved food [159]. The US military in collaboration with NASA [160], applied nanoclays as barrier enhancers for ethylene vinyl alcohol (EVOH) to develop an long-shelf-life packaging material (nonrefrigerated food).…”

Section: Food Packagingmentioning

confidence: 99%

A Review of the Synthesis and Applications of Polymer–Nanoclay Composites

et al. 2018

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Recent advancements in material technologies have promoted the development of various preparation strategies and applications of novel polymer–nanoclay composites. Innovative synthesis pathways have resulted in novel polymer–nanoclay composites with improved properties, which have been successfully incorporated in diverse fields such as aerospace, automobile, construction, petroleum, biomedical and wastewater treatment. These composites are recognized as promising advanced materials due to their superior properties, such as enhanced density, strength, relatively large surface areas, high elastic modulus, flame retardancy, and thermomechanical/optoelectronic/magnetic properties. The primary focus of this review is to deliver an up-to-date overview of polymer–nanoclay composites along with their synthesis routes and applications. The discussion highlights potential future directions for this emerging field of research.

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Section: Food Packagingmentioning

confidence: 99%

A Review of the Synthesis and Applications of Polymer–Nanoclay Composites

et al. 2018

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“…In comparison to older traditional materials (plastic), nanoclays have more superior properties, so different nanoclay materials have devolved and investigated with better mechanical property and reduced permeability towards gases. To control the toxic gases such as CH4, and CO2 selective and intelligent polymer/nanoclays composite are being designed which extend the survival of preserved food [67]. NASA and the US military had made a joint effort to develop nanoclays that work as a barrier enhancer for ethylene vinyl alcohol (EVA) which work as a long-shelflife wrapping material.…”

Section: Food Packagingmentioning

confidence: 99%

In-situ Composite Formation by Polymerization on the Hectorite or other Clay Materials

Jain¹

2022

Materials Research Foundations

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Clays are the naturally existing mineral having layered structures with at least one dimension in the nano-range that are economical and environment friendly. There exist two types of nanoclays, anionic and cationic, depending on the surface charge layered. Nanoclays have wide application in different areas for improving physical properties like heat resistance, mechanical strength and anticorrosion quality of the polymer matrix. Clay and its composite have promising applications including tissue engineering, petroleum, drug delivery, food packaging and enzyme immobilization. Due to their superior properties like flame retardancy, non-toxic, magnetic properties and large surface areas; hectorites and their composite are of great interest. The primary focus of this chapter is Composite Formation by in-situ polymerization of hectorite/clay materials and its application in different areas.

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Tailoring the graphene oxide chemical structure and morphology as a key to polypropylene nanocomposite performance

et al. 2021

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In this work, we designed and studied two synthetic routes, based on modified Hummers method, to obtain graphene oxide (GO), and investigated their influence on the performance of polypropylene (PP)/GO nanocomposites. The two synthetic routes differed in the application condition of the oxidizing agent, potassium permanganate (KMnO4), which was added either as a powder (GO‐P) or as a water solution (GO‐S). This apparently subtle synthetic change yielded GOs with different degrees of oxidation and particle sizes, where GO‐P presented a higher oxidation degree and smaller particles. The different GOs were then melt‐blended with PP and the correlation between their different chemical/morphological structures and the nanocomposites' thermomechanical/rheological properties were evaluated. The milder oxidation process suffered by GO‐S, and consequent less hydrophilic character, yielded a PP/GO‐S nanocomposite with improved performance as the consequence of a better matrix/filler chemical affinity, mainly in compositions with lower GO‐S contents. The thermal stability was increased by more than 10°C when 0.1 wt% GO‐S was inserted into PP. When compared to the composition with 0.1 wt% GO‐P, the increase was 13°C. Reinforcing effects were also observed in that sample (with 0.1 wt% GO‐S), which exhibited the highest storage modulus and complex viscosity. These results suggest that tailoring the GO's oxidation degree and morphology is a key point to obtain an ideal interfacial interaction between phases.

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Polymer/Graphene Nanocomposites for Food Packaging

Cited by 5 publications

References 50 publications

A Review of the Synthesis and Applications of Polymer–Nanoclay Composites

A Review of the Synthesis and Applications of Polymer–Nanoclay Composites

In-situ Composite Formation by Polymerization on the Hectorite or other Clay Materials

Tailoring the graphene oxide chemical structure and morphology as a key to polypropylene nanocomposite performance

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