but the addition of triacetin resulted in increased tan delta temperature for the composites. Tan delta was increased from 55 °C to 70 °C which indicates some kind of interaction effect between the fibres and PLA due to the triacetin. It is possible that triacetin will act as a compatibilizer for the PLA/flax system. Further, the peak is moved to the higher temperatures and also broadens for cold crystallised sample.