when 1 lm talc was added at 10 wt%. Among the talc particle sizes studied, there was no significant difference in the tensile modulus. Figure 7 also shows the plot of the elongation at break for the talc-modified PLA. On the addition of talc to the inherently brittle PLA, the strain values dropped from 4 % to around 1.5 % at all particle sizes. Elongation at break is generally sensitive to the addition of particulate