1,721,051 research outputs found
Effect of the organoclay structure on the morphology and rheological response of PBT nanocomposites
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Effect of processing conditions on exfoliaton and rheological behaviour of PBT-clay nanocomposites
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The effect of in situ reactive compatibilization on the properties of PET/Rodrun 3000 polymer blends
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Effect of Cooling Air in the Film Blowing Process on the Properties of PLA/PBAT Films
No full textPoly(lactide) (PLA) and poly(butylene-adipate-co-terephthalate) (PBAT) blends are among the most promising biodegradable materials for flexible packaging applications and the film blowing is one of the most common techniques to make plastic films. In this work, a study on the effect of the cooling air during the production process of blown films made by compatibilized PLA/PBAT blend has been performed. The application of cooling air has led to a significant reduction of the thermal shrinkage of the films in the transverse direction, respect to the machine direction, and has been beneficial in order to improve their mechanical and optical properties
Antioxidant activity of bio-coatings for food packaging
No full textPoly (lactic acid)-based coatings, containing a hydroxytyrosol-rich olive extract and two different surfactants (Tween 80 and Span 85), suitable for food packaging applications, were developed and characterized. In vitro release of hydroxytyrosol in Ethanol 95% simulant was quantified by HPLC analysis, and 2-diphenyl-1-picrylhydrazyl (DPPH) spectroscopic assay was applied to investigate the antioxidant capacity. Results pointed out the effectiveness of the formulated bio-coatings in releasing antioxidant molecules and the key role of the surfactant in determining the release kinetics suggesting the possibility to design and develop tailor-made active packaging solutions according to the requirements of the target food
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