Test methods for the characterization of gas and vapor permeability in polymers for food packaging application: A review

Baschetti, Marco Giacinti; Minelli, Matteo

doi:10.1016/j.polymertesting.2020.106606

Cited by 35 publications

(17 citation statements)

References 79 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…To determine the permeability of H 2 through melt-pressed plates of neat Teflon AF and of nanocomposites containing the Pd nanoparticles, we used a custom-made setup that allows measuring of the time lag of gas transport through polymer films, which separate the feed and the initially empty permeate compartment. 32 The feed side of the sample is exposed to H 2 , which absorbs and diffuses through the plate and then desorbs on the permeate side, leading to a gradual increase in pressure until the steady-state conditions are obtained (linear increase with time of permeated H 2 molecules, i.e., constant flux). The time lag at the beginning of the measurement and the slope in the steady-state region allow us to determine the diffusion coefficient D and the permeability P , respectively ( Figure 3 ).…”

Section: Resultsmentioning

confidence: 99%

Highly Permeable Fluorinated Polymer Nanocomposites for Plasmonic Hydrogen Sensing

Östergren

Pourrahimi

Darmadi

et al. 2021

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

Hydrogen (H 2 ) sensors that can be produced en masse with cost-effective manufacturing tools are critical for enabling safety in the emerging hydrogen economy. The use of melt-processed nanocomposites in this context would allow the combination of the advantages of plasmonic hydrogen detection with polymer technology; an approach which is held back by the slow diffusion of H 2 through the polymer matrix. Here, we show that the use of an amorphous fluorinated polymer, compounded with colloidal Pd nanoparticles prepared by highly scalable continuous flow synthesis, results in nanocomposites that display a high H 2 diffusion coefficient in the order of 10 –5 cm 2 s –1 . As a result, plasmonic optical hydrogen detection with melt-pressed fluorinated polymer nanocomposites is no longer limited by the diffusion of the H 2 analyte to the Pd nanoparticle transducer elements, despite a thickness of up to 100 μm, thereby enabling response times as short as 2.5 s at 100 mbar (≡10 vol. %) H 2 . Evidently, plasmonic sensors with a fast response time can be fabricated with thick, melt-processed nanocomposites, which paves the way for a new generation of robust H 2 sensors.

show abstract

Section: Resultsmentioning

confidence: 99%

Highly Permeable Fluorinated Polymer Nanocomposites for Plasmonic Hydrogen Sensing

Östergren

Pourrahimi

Darmadi

et al. 2021

ACS Appl. Mater. Interfaces

Self Cite

View full text Add to dashboard Cite

show abstract

“…The absence of pores in the surface morphology is very positive, since it is intended to use this blend‐based nanocomposite for application in the packaging sector, with barrier properties being an important characteristic to protect the product from the external atmosphere and guarantee an extended shelf‐life 22 . It was also possible to observe the absence of agglomerates of BNT clay, indicating that there was a good dispersion and distribution of this filler in the rLDPE/LDPE blend, in addition to the good adhesion between the polymers (rLDPE/LDPE), indicating the effectiveness of the compatibilizer agent used (LDPE‐ g ‐MA) for the develop of the nanocomposites 23,24 .…”

Section: Resultsmentioning

confidence: 99%

The use of recycled low‐density polyethylene films from protective prepreg for the development of nanocomposites with bentonite clay

Severino

Braga

Morgado

et al. 2021

J of Applied Polymer Sci

View full text Add to dashboard Cite

Prepreg is a pre-impregnated composite fiber where a thermoset polymer matrix material is present. Before being used, these materials are kept at low temperatures and have a low-density polyethylene (LDPE) film for your protection. The increase in the use of structural composites based on prepregs causes an increase in the amount of protective LDPE film. This material is usually discarded or incinerated and can cause great damage to the environment. Thus, the present work aimed to study the feasibility of recycling up to 100% of protective LDPE (rLDPE) to develop blends-based nanocomposites with rLDPE/virgin LDPE (60/40, 70/30, 80/20, 90/10 and 100/0) with the addition of 5 wt% of compatibilizer agent (maleic anhydride grafted LDPE, LDPE-g-MA), and 1 wt% of bentonite (BNT) using a co-rotational twin-screw extruder, followed by hot pressing in a hydropneumatic press and die-cutting. Water absorption test, thermal aging resistance, morphological characterization by scanning electron microscopy, mechanical properties by Izod impact strength and tensile tests, and differential scanning calorimetry were performed. By the results, it was possible to verify the viability of 100% of the recycling of rLDPE. The results showed a good distribution of 1 wt% of BNT in the matrix, better mechanical properties when compared with virgin LDPE. Furthermore, the thermal properties, water absorption test, and thermal aging resistance showed no statistical differences between the samples. These results confirm the effectiveness and the environmental gain in the use of the recycled material.

show abstract

“…Therefore, the elimination of this gas from the packaging or the control of its permeability is relevant to increase the shelf-life of fresh products [120]. While carbon dioxide is one of the most employed components in the gas mixtures for modified atmosphere packaging (MAP) due to its antibacterial properties [121], this gas can prevent the microbial growth of fresh meat, cheese, or baked goods, and minimize the respiration rate of fruits and vegetables [120]. Moreover, moisture content alters the nutritional and organoleptic properties and safety of food products.…”

Section: Strategies To Improve Barrier and Hydrophobicity Properties ...mentioning

confidence: 99%

“…The exposu Given the importance of quantifying the barrier properties, mainly to gasses and water vapor, it is relevant to use normalized or standardized methods that allow the comparison with other materials. As it was stressed by Baschetti and Minelli, numerous methodologies have been employed to study the permeability of different gasses and volatile compounds through polymeric matrices under diverse experimental conditions [120]. The most important international standards are American Standards and Table 1 summarizes the ASTM norms for the determination of gasses and water vapor permeability in polymers for food packaging [120,122].…”

Section: Strategies To Improve Barrier and Hydrophobicity Properties ...mentioning

confidence: 99%

Sustainable and Bio-Based Food Packaging: A Review on Past and Current Design Innovations

Versino

Ortega

Monroy

et al. 2023

Foods

107

View full text Add to dashboard Cite

Food loss and waste occur for many reasons, from crop processing to household leftovers. Even though some waste generation is unavoidable, a considerable amount is due to supply chain inefficiencies and damage during transport and handling. Packaging design and materials innovations represent real opportunities to reduce food waste within the supply chain. Besides, changes in people’s lifestyles have increased the demand for high-quality, fresh, minimally processed, and ready-to-eat food products with extended shelf-life, that need to meet strict and constantly renewed food safety regulations. In this regard, accurate monitoring of food quality and spoilage is necessary to diminish both health hazards and food waste. Thus, this work provides an overview of the most recent advances in the investigation and development of food packaging materials and design with the aim to improve food chain sustainability. Enhanced barrier and surface properties as well as active materials for food conservation are reviewed. Likewise, the function, importance, current availability, and future trends of intelligent and smart packaging systems are presented, especially considering biobased sensor development by 3D printing technology. In addition, driving factors affecting fully biobased packaging design and materials development and production are discussed, considering byproducts and waste minimization and revalorization, recyclability, biodegradability, and other possible ends-of-life and their impact on product/package system sustainability.

show abstract

Test methods for the characterization of gas and vapor permeability in polymers for food packaging application: A review

Cited by 35 publications

References 79 publications

Highly Permeable Fluorinated Polymer Nanocomposites for Plasmonic Hydrogen Sensing

Highly Permeable Fluorinated Polymer Nanocomposites for Plasmonic Hydrogen Sensing

The use of recycled low‐density polyethylene films from protective prepreg for the development of nanocomposites with bentonite clay

Sustainable and Bio-Based Food Packaging: A Review on Past and Current Design Innovations

Contact Info

Product

Resources

About