'New tailor-made biopolymers produced from lignocellulosic sugars waste for highly demanding fire-resistant applications'

Foaming behavior of bio‐based blends based on thermoplastic gelatin and poly(butylene succinate)

Biodegradable thermoplastic gelatin/poly(butylene succinate) (TPG/PBS) foams were prepared by melt mixing and subsequent batch foaming with supercritical CO2. Shear viscosity and calorimetric properties of the various blends were investigated using a rotational rheometer and a differential scanning calorimeter, respectively. TPG/PBS blends show poor miscibility at all blend ratios. The addition of PBS reduced the melt viscosity and increased both the CO2 diffusivity and the thermal stability of TPG. Results from foaming experiments show that the blend foams exhibit smaller cell size and higher cell density compared to the neat TPG foam due to the lower melt viscosity and to their lower gas barrier. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42704.

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» Author: Maria Oliviero, Luigi Sorrentino, Livia Cafiero, Barbara Galzerano, Andrea Sorrentino* andSalvatore Iannace

» Reference: Journal of Applied Polymer ScienceSpecial Issue: Manufacturing of Advanced Biodegradable Polymeric ComponentsVolume 132, Issue 48, December 20, 2015

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This project has received funding from the European Unionís Seventh Framework Programme for research, technological development and demonstration