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Extrusion of biodegradable PBAT/PHB films reinforced by babassu filler for agricultural and food packaging

Paper presented at XVII Brazil MRS Meeting 2018, September 16th to 20th, 2018, Natal
: Hoffmann, Ron; Morais, D.D.S.; Braz, C.J.F.; Calvacanti, F.B.; Haag, Katharina; Koschek, Katharina; Wellen, R.M.R.; Canedo, E.L.; Carvalho, L.H. de

Fulltext urn:nbn:de:0011-n-5154814 (300 KByte PDF)
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Created on: 16.11.2018

2018, 3 pp.
Brazilian Materials Research Society (Meeting) <17, 2018, Natal>
Conference Paper, Electronic Publication
Fraunhofer IFAM ()
PBAT/PHB; crystallization; biodegradable composites; melt extrusion; Babassu

Film extrusion was performed with biodegradable polymers filled with natural cellulose. Different compositions of poly-3-hydroxybutyrate (PHB) and polybutyrate adipate terephthalate (PBAT) were blended in a torque rheometer under addition of 0 – 3 wt.-% natural mesocarp cellulose rich particles from the babassu plant (Orbignya phalerata sp, Mart. [Arecaceae]) and subsequently processed in a film extruder. Retardation of crystallization upon addition of babassu particles as well as suitable mechanical and vapor barrier properties were found. These cost-effective cellulose PHB/PBAT composites may be further optimized to substitute not degradable synthetic standard materials for food, agricultural and general packing.