To reduce its brittleness and to improve its mechanical and physical properties, starch is often chemically modified and blended with other biopolymers.
BP1003 is suitable for food packaging bags, with good transparency, comparable to ordinary PE bags. Many commercial grades are specifically designed for thermoforming, and extrusion/injection molding.
Poly(butylene adipate-co-terephthalate) (PBAT), also known as polybutyrate, is a semi-aromatic, biodegradable thermoplastic copolyester that can be easily molded and thermoformed.
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