Influence of plasticiser on the barrier, mechanical and grease resistance properties of alginate cast films

Jost, Verena; Kobsik, Karin; Schmid, Markus; Noller, Klaus

doi:10.1016/j.carbpol.2014.03.096

Cited by 150 publications

(129 citation statements)

References 54 publications

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“…Just 5 wt.% of G increases the WVP and OP significantly. This effect of an increased permeability by G was also shown for another biopolymer [44] as well as for conventional polymers [41]. The OP for a PHBV + 10% ATBC compression moulded film was stated with 254 cm 3 (STP) 100 lm m À2 d À1 bar À1 (corresponding to 2.57 cm 3 -cm m À2 d À1 760 mmHg À1 ) [42], so our sample of PHBV + 10 wt.% TEC with an OP of 203 cm 3 (STP) 100 lm m À2 d À1 bar À1 has a slight lower permeability even though a higher stress was applied during production.…”

Section: Barrier Properties: Water Vapour Permeability (Wvp) Q 100h 2supporting

confidence: 51%

Effect of different plasticisers on the mechanical and barrier properties of extruded cast PHBV films

Jost

Langowski

2015

European Polymer Journal

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Section: Barrier Properties: Water Vapour Permeability (Wvp) Q 100h 2supporting

confidence: 51%

Effect of different plasticisers on the mechanical and barrier properties of extruded cast PHBV films

Jost

Langowski

2015

European Polymer Journal

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“…This behavior, including the reduction of glass transition temperature, is typical of plasticized green polymers [23][24][25].…”

Section: Mechanical Propertiesmentioning

confidence: 93%

Processing and characterization of thermoplastic starch/polycaprolactone/compatibilizer ternary blends for packaging applications

2015

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Thermoplastic starch (TPS)/polycaprolactone (PCL) blends were obtained by melt mixing. First, the best formulation of thermoplastic starch (starch, plasticizer and additives) was studied. The obtained films were characterized by means of differential scanning calorimetry, DSC (melting temperature and crystallinity degree); thermogravimetric analysis, TGA (real composition of the blend and thermal stability); tensile tests (mechanical properties); infrared spectroscopy, FTIR (interactions between components); scanning electron microscopy, SEM (morphology); and water absorption tests. The effect of PCL/TPS ratio on the previously mentioned characteristics and properties were studied. In addition, the effect of using PCL modified with maleic anhydride as compatibilizer was also analyzed. An optimal compatibilizer content was found improving the mechanical properties and slowing down the degradation rate in soil of the blends. On the other hand, a slight increase in the water absorption of the blends was found in comparison with the noncompatibilized ones.

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“…As plasticizer, 66.7% (w/w protein) glycerol was added, with the percentage here referring to the actual amount of protein in the solution. Glycerol is a commonly used plasticizer for biopolymer films (Gao et al, 2006; Aritonang and Melia, 2014; Jost et al, 2014; Jost and Langowski, 2015; Boy et al, 2016; Jost and Stramm, 2016). To avoid gel formation and to mix the components, the stirrer temperature was kept at 50°C for an additional 30 min at 200 rpm.…”

Section: Methodsmentioning

confidence: 99%

Effect of Sodium Sulfite, Sodium Dodecyl Sulfate, and Urea on the Molecular Interactions and Properties of Whey Protein Isolate-Based Films

et al. 2017

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Whey protein coatings and cast films are promising for use as food packaging materials. Ongoing research is endeavoring to reduce their permeability. The intention of this study was to evaluate the effect of the reactive additives sodium sulfite, sodium dodecyl sulfate (SDS), and urea on the oxygen barrier, water vapor barrier, and protein solubility of whey protein cast films. The concentration of the reactive additives was 1 to 20 wt.-%. Dried whey protein cast films were used as substrate materials. The water vapor transmission rate, the oxygen permeability, and the protein solubility were measured. Effective diffusion coefficients and effective sorption coefficients were calculated from the results of the water vapor sorption experiments. The presence of sodium sulfite resulted in an increased number of hydrophobic interactions and hydrogen bonds and a slightly decreased number of disulfide bonds. The oxygen permeability decreased from 68 to 46 cm3 (STP/standard temperature and pressure) 100 μm (m2 d bar)−1 for 1 wt.-% SDS in the whey protein cast film. The water vapor transmission rate decreased from 165 to 44 g 100 μm (m2 d)−1 measured at 50 to 0% r. h. for 20 wt.-% SDS in the whey protein cast film. The reduction in the water vapor transmission rate correlated with the lower effective diffusion coefficient.

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Influence of plasticiser on the barrier, mechanical and grease resistance properties of alginate cast films

Cited by 150 publications

References 54 publications

Effect of different plasticisers on the mechanical and barrier properties of extruded cast PHBV films

Effect of different plasticisers on the mechanical and barrier properties of extruded cast PHBV films

Processing and characterization of thermoplastic starch/polycaprolactone/compatibilizer ternary blends for packaging applications

Effect of Sodium Sulfite, Sodium Dodecyl Sulfate, and Urea on the Molecular Interactions and Properties of Whey Protein Isolate-Based Films

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