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(a) Impact strength (kJ/m2) to filler percentage (%) in PLA (0.5% wt. developed 0.6% increased values, when compared to pure PLA, 1% wt. 5.4% increase, 2% wt. 8.7% decrease and 4% wt. 15.8% decrease, respectively) (b) Vickers microhardness (HV) to filler percentage (%) (0.5% wt. developed 63.7% decreased values, when compared to pure PLA, 1% wt. 65.7% decrease, 2% wt. 52.4% decrease and 4% wt. 64.4% decrease, respectively).
