Recent advances in polyvinyl alcohol-based composite films and their applications in food packaging

Oun, Ahmed A.; Shin, Gye Hwa; Rhim, Jong‐Whan; Kim, Jun Tae

doi:10.1016/j.fpsl.2022.100991

Cited by 64 publications

(29 citation statements)

References 119 publications

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“…Thus, PVA mechanical strength, physical attributes, and barrier characteristics are determined by molecular weight, which ranges from 200,000 to 400,000 g/mol, and DH. 35 PVA structure has a vinyl polymer joined only by carbon-carbon bonds, similar to common plastic polymers like polyethylene, polypropylene, and polystyrene. It also consists of a 1,3-glycol and falls under the same category as PVAc from which it is typically derived.…”

Section: Synthesis and Chemical Structurementioning

confidence: 99%

Recent advances and challenges in thermal stability of PVA‐based film: A review

Suleiman,

Zeng,

Chakma

et al. 2024

Polymers for Advanced Techs

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Food packaging film is being developed using biodegradable polymers to prolong the shelf life of foods and address the environmental damage caused by non‐biodegradable plastics. Poly(vinyl alcohol) (PVA) is a biodegradable polymer with outstanding characteristics and can be easily shaped into a film. However, PVA‐based film still faces several obstacles that seriously restrict its practical application in the food packaging industry, particularly its low thermal stability limits the film process method. The growing preference demand for PVA‐based films with enhanced thermal stability in food packaging can be attributed to their advantageous characteristics, including commendable temperature resistance, safety, versatile processing capabilities, and prolonged shelf life. It is critical to comprehend the difficulties with PVA thermal degradation behavior and mechanism, and how to address this problem. In this review, we provide strategies for improving the thermal stability of PVA film including modification with environmentally friendly polymers, nanoparticles, and crosslinking agents. Also, the current challenges, and the potential for future advancements in the thermal stability of PVA and its composites are proposed. The new insight into the relationship between PVA based film processing and thermal properties of materials are expected to provide a valuable guide for developing PVA films with high thermal stability.

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Section: Synthesis and Chemical Structurementioning

confidence: 99%

Recent advances and challenges in thermal stability of PVA‐based film: A review

Suleiman,

Zeng,

Chakma

et al. 2024

Polymers for Advanced Techs

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“…Currently, scientists are interested in the use of different types of essential oils and substances extracted from them to modify polymers that can be used in food packaging [ 13 , 14 , 15 ]. Natural antimicrobial agents include extracts from spices such as cinnamon, allspice, clove, thyme, rosemary, and oregano, and other plant extracts such as onion, garlic, radish mustard, and horseradish [ 2 ] A number of methods of introducing essential oils into polymeric materials are being investigated.…”

Section: Introductionmentioning

confidence: 99%

Modification of Poly(vinyl chloride) with Bio-Based Cassia Oil to Improve Thermo-Mechanical and Antimicrobial Properties

et al. 2023

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The purpose of this study was to modify plasticised PVC to obtain a material with antimicrobial properties and selected mechanical properties. Natural cassia oil (CO) was used to modify plasticised PVC materials. The modified material was produced by extrusion. The introduced modifier had a maximum concentration of 20 phr. Rheological and mechanical properties were evaluated, and the glass transition temperature was determined. The antioxidant and antimicrobial activity of the agar diffusion method was investigated by analysing the growth inhibition zones against Enterococcus faecalis and Listeria monocytogenes. A favourable effect of the cassia oil content on the increase in antioxidant activity of the developed polymeric materials was found with an increase in the modifier content and the duration of action (30 days). The largest growth restriction zones were observed for L. monocytogenes, i.e., they showed the highest sensitivity to the modified material. The simultaneous decrease in modulus of elasticity, increase in elongation at break, and decrease in Tg indicate that the modifier has a plasticising effect on PVC. The developed material may find application as an active and/or functional material, especially as an emitter of antimicrobial agents, in the packaging used to store minimally processed food.

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“…According to the previous reports, PVA based biodegradable nano composite film reinforced with coconut cellulose nano fiber was prepared as a better alternative to synthetic plastic food packaging. Essential oils like lemon oil and linseed oil were also incorporated into the prepared film to get the antimicrobial properties to the packaging film [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%