Blend polymer/starch

During the same period, commercialization of thermoplastic starch polymer blends was pursued by Novamont, a division of the Ferruzzi Group of Italy.162-172 Their products, marketed under the trade name Mater-Bi, are typically comprised of at least 60% starch or natural additive and hydrophilic, biodegradable synthetic polymers.64,165 It is stated that these blends form interpenetrated or semi-interpenetrated structures at the molecular level. Properties of typical commercial formulations have properties similar to those in the range of low- and high-density PE. Blends of Mater-Bi products with biodegradable polyesters have been claimed for use as water impervious films.173... 

Reactive blending of thermoplastic starch/polymer blends has been examined recently and aims to increase properties and performance via control of blend morphologies. Mani [58, 59] examined different techniques for compatibilising starch-polyester blends. They examined development of maleic anhydride grafted polyester/starch blends and starch-g-polycaprolactone... 

Novamont www.novamont.com/ Materbi Thermoplastic starch polymer blends biodegradable mulch films and bags, thermoformed products, injection molded items, and packaging foam... 

Griffin G.J.L., Starch polymer blends, Polym. Degrad. Stab., 45, 1994, 241-247. 

R.B. Maliger, P.J. Halley, Reactive extrusion for thermoplastic starch-polymer blends (book chapter), in Starch Polymers From Genetic Engineering to Green Apphcations, 2014, pp. 291-317. 

Hietala M, Mathew AP, Oksman K (2013) Bionanocomposites of thermoplastic starch and cellulose nanofibers manufactured using twin-screw extrusion. Eur Polym J 49 950-956 Hoover R, Hughes T, Chung HJ, Liu Q (2010) Composition, molecular structure, properties and modification of pulse starches a review. Food Res Int 43 399-413 Hotza D (1997) Colagem de Folhas Ceramicas. Tape Casting Ceramica 159-166 Huneault MA, Li H (2012) Preparation and properties of extruded thermoplastic starch/polymer blends. J Appl Polym Sci 126 96-108... 

Biodegradability is enhanced by increasing the starch share in the starch-polymer blends and reaching its homogeneous distribution in the gelatinized state. This has been successfully achieved in different ways ... 

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