Thermal and Toughness Enhancement of Poly (Lactic Acid) Bio-Nanocomposites
Abdullah, Nur A. S.
Mohamad, Zurina
Che Man, Siti Hajjar
Baharulrazi, Norfhairna
Majid, Rohah A.
Jusoh, Mazura
Ngadi, Norzita
Download PDF

How to Cite

Abdullah N.A.S., Mohamad Z., Che Man S.H., Baharulrazi N., Majid R.A., Jusoh M., Ngadi N., 2019, Thermal and Toughness Enhancement of Poly (Lactic Acid) Bio-Nanocomposites, Chemical Engineering Transactions, 72, 427-432.
Download PDF


Bio-nanocomposites based on poly (lactic acid)/epoxidized natural rubber (PLA/ENR) blends containing graphene (G) nanofiller were prepared by melt compounding using nano-single screw extruder with a screw speed of 60 rpm, and followed by compression molding. The ENR and graphene loading was varied from 0-30 wt% and 0.5-2.0 phr. The objectives of this work are to investigate the effect of ENR and graphene loading on PLA matrix on the thermal, morphology and toughness properties. The TGA curve of PLA/ENR and PLA/ENR/G bio-nanocomposites shows a single step of thermal degradation. As increasing the loading of graphene, degradation temperature (Tdeg) was increase where graphene act to slow down the rate of degradation. The PLA/ENR blends showed a co-continuous morphology while PLA/ENR/G bio-nanocomposites revealed a good dispersion of graphene in a PLA/ENR matrix at 1 phr of graphene loading. The optimum impact strength was recorded at 10 wt% of the ENR loading which is 104.6 J/m for the PLA/ENR system. In the case of PLA/ENR/G system, the optimum impact strength was recorded at 1 phr of graphene which is 219.5 J/m. The thermal and toughness enhancement of PLA/ENR/G bio-nanocomposites will diversify the future application of this bio-nanocomposites.
Download PDF