Modelling of pyrolysis and combustion of gluten–glycerol-based bioplastics

Wheat gluten/LDPE based thermoplastic vulcanizates containing LDPE-g-MA as compatibilizer

“…Fig. 2 furthermore revealed a continuous loss of glycerol/water between 25 • C and 250 • C, confirming earlier results (Gomez-Martinez et al, 2011). Plasticizer loss as well as protein degradation should be avoided during processing and everyday use of gluten based rubbers and TPVs.…”

“…According to Sun et al (2007), below 200 • C both free and bound water are released. Based on the TGA analysis by Gomez-Martinez et al (2011), gluten protein volatilization starts from 200 • C onwards. Accordingly, the TGA profile was extrapolated by the constant value at 200 • C down to 25 • C. The difference between this extrapolated curve and the overall TGA curve is suggested to represent the water share in the TGA curve.…”

The utilization of biochemically modified microfibers from grain by-products as reinforcement for polypropylene biocomposite

“…20°C higher temperatures than for the untreated counterparts. This achievement is of significant value for thermoplastic composites pro- cessing, because the materials are subject to high pressures and temperatures which induce degradation of the low molecular weight compounds (proteins, fats) leading to deterioration of composite properties, odor emission and darkening of natural hue [30].…”

Development of protein‐based bioplastics modified with different additives

“…Previously, other proteins have been selected as good candidates for the manufacture of packaging materials, coming either from plant sources such as zein, wheat gluten, or soybean or from animal sources such as milk proteins, collagen, or gelatin, although most of them cannot be considered as true byproducts. To produce protein‐based bioplastic materials, proteins are typically mixed with a plasticizer, which reduces intermolecular forces among the polymer chains.…”