engleski

Influence of different processing techniques on the thermal properties of poly(L-lactide)/olive stone flour composites

The aim of this work was to find the best processing technique for poly(L-lactide)/olive stone flour (PLLA/OSF) composites. Processing with horizontal single-screw extruder gave non-homogenous composites and was abandoned. The composites prepared using vertical twin-screw compounder followed by injection moulding and Brabender plastograph without and with pressing in hydraulic press were used for thermal analyses by differential scanning calorimetry (DSC). It was established that thermal properties of PLLA/OSF composites depend on the processing technique. To obtain most reliable results PLLA/OSF composites have to be prepared on Brabender plastograph.

poly(L-lactide) ; olive stone flour ; processing ; differential scanning calorimetry

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