Gas Permeability Properties of Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)

Vandewijngaarden, Jens; Murariu, Marius; Dubois, Philippe; Carleer, Robert; Yperman, Jan; Adriaensens, Peter; Schreurs, Sonja; Lepot, Nadia; Peeters, Roos; Buntinx, Mieke

doi:10.1007/s10924-014-0688-1

Cited by 38 publications

(29 citation statements)

References 32 publications

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“…The PP sheets showed the lowest oxygen barrier properties (149. [24]. Furthermore, all EVOH-containing sheets showed OTR values below 2 cc/m 2 ·day·atm, the limit value required for packaging applications of shelf-stable food [20].…”

Section: Oxygen Transmission Rate Of Sheets Versus Traysmentioning

confidence: 91%

“…These values were calculated from the OTR of the PP, APET/PE, and PA/PE sheets and trays, and the average thickness of the PP, APET, and PA layers, respectively, assuming that the contribution of PE to the oxygen barrier is negligible as compared to APET and PA [24]. In the case of PP, the permeability coefficients of the trays were lower as compared to the sheet material (Figure 8a).…”

Section: Effect Of (Re)crystallizationmentioning

confidence: 99%

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Evaluation of the Thickness and Oxygen Transmission Rate before and after Thermoforming Mono- and Multi-layer Sheets into Trays with Variable Depth

et al. 2014

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During thermoforming, plastic sheets are heated and subsequently deformed through the application of mechanical stretching and/or pressure. This process directly impacts sheet properties such as material thickness in walls, corners, and bottom, crystallinity in the constituent layers, and particularly the oxygen gas permeability. The aim of this study was to quantify the impact of thermoforming on thickness and oxygen transmission rate (OTR) of selected packaging materials (polypropylene (PP); PP/ethylene-vinyl alcohol co-polymer/PP (PP/EVOH/PP); polystyrene/EVOH/polyethylene (PS/EVOH/PE); amorphous polyethylene terephtalate/PE (APET/PE); APET/PE/EVOH/PE; polyamide/PE (PA/PE); and (PE/)PA/EVOH/PA/PE). These materials were extruded in two different thicknesses and thermoformed into trays with the same top dimensions and variable depths of 25, 50, and/or 75 mm and a 50 mm tray with a variable radius of the corners. The distribution of the material thickness in the trays was visualized, showing the OPEN ACCESSPolymers 2014, 6 3020 locations that were most affected by the deep drawn process. The OTR results indicate that the calculated OTR, based on a homogeneous material distribution, can be used as a rough approximation of the measured OTR. However, detailed analysis of crystallization and unequal thinning, which is also related to the tray design, remains necessary to explain the deviation of the measured OTR as compared to the predicted one.

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Section: Oxygen Transmission Rate Of Sheets Versus Traysmentioning

confidence: 91%

Section: Effect Of (Re)crystallizationmentioning

confidence: 99%

Evaluation of the Thickness and Oxygen Transmission Rate before and after Thermoforming Mono- and Multi-layer Sheets into Trays with Variable Depth

et al. 2014

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“…[27] A more logical explanation for this is the kinetic diameter, which represents the smallest effective dimension of a given molecule. The kinetic diameter is smaller for carbon dioxide than that of oxygen, respectively, 0.330 and 0.346 nm, making it easier for carbon dioxide to diffuse through the polymer matrix [21,99] .…”

Section: Permeation Of Other Gases Through Evohmentioning

confidence: 99%

Recent Updates on the Barrier Properties of Ethylene Vinyl Alcohol Copolymer (EVOH): A Review

et al. 2018

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The gas barrier properties of ethylene vinyl alcohol copolymer (EVOH) against oxygen, carbon dioxide and water vapor have been widely investigated in relation to different material characteristics, environmental conditions and new processing technologies. Recently, EVOH is gaining more attention as a barrier material against other gases and organic substances such as aromas, flavors, fuels, chemicals (e.g., BTEX), and as a functional barrier, e.g., to avoid mineral oil migration. This review contains an update on permeability data of EVOH emphasizing its potential as a barrier material for new and versatile applications in food and pharmaceutical packaging, agriculture, construction, automotive, etc.

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“…These applications are of major importance for a wide variety of domains (food preservation, biomedical applications, energy, building, etc.). In the last decades, a great attention has been paid to polymer materials due to their low cost, easy processing, and interesting mechanical properties such as their high flexibility . However, neat polymers cannot meet anymore the ever increasing barrier level required for these applications.…”

Section: Introductionmentioning

confidence: 99%

Modeling diffusion mass transport in multiphase polymer systems for gas barrier applications: A review

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2018

J Polym Sci B Polym Phys

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Polymer nanocomposites offer a great interest as gas barrier materials because of their much-enhanced properties arising from the nanoparticles shape, size, and spatial arrangement within the matrix. However, optimization and further development of such materials requires fundamental understanding of the influence of the nanocomposite structure on permeating gas diffusion. This step can be greatly facilitated through modeling/simulation strategies able to establish relationships between the material microstructure and the achieved enhancement of barrier properties. This review first presents the analytical models developed to estimate the effective diffusivity in polymer nanocomposites. The predictions of the models are analyzed with respect to experimental data reported in the literature and their ability to describe accurately the nanocomposite transport properties when the microstructure complexity increases is discussed. Then, modeling approaches based on numerical simulation techniques (e.g., the finite element method) that allow simulating the diffusion processes and assessing the effect of filler shape, orientation, dispersion, and spatial arrangement are reviewed and discussed. Finally, the importance of 3D simulation strategies for the understanding and prediction of transport properties in the most complex nanocomposite microstructures is addressed.

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Gas Permeability Properties of Poly(3-hydroxybutyrate-co-3-hydroxyhexanoate)

Cited by 38 publications

References 32 publications

Evaluation of the Thickness and Oxygen Transmission Rate before and after Thermoforming Mono- and Multi-layer Sheets into Trays with Variable Depth

Evaluation of the Thickness and Oxygen Transmission Rate before and after Thermoforming Mono- and Multi-layer Sheets into Trays with Variable Depth

Recent Updates on the Barrier Properties of Ethylene Vinyl Alcohol Copolymer (EVOH): A Review

Modeling diffusion mass transport in multiphase polymer systems for gas barrier applications: A review

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