2. Experimental set-up
2.1. Materials
Semi-crystalline PLA pellets used in the current study were neat grade commercialized by Cargill-Dow under the brand name Ingeo biopolymer 3051D". The 3051D PLA has an average molec- ular weight of 160 kDa. The melting point is 150-165 oC. The melt flow index and the specific gravity of this polymer are 10-30 g/ 10 min and 1.24 g/cm3, respectively. The glass transition tempera temperature is 200 oc [4,401 Bc particle was supplied by Mt Meru Pte Ltd (Singapore). The average particle size of bamboo charcoal was 10.00 um and its specific surface area is 0.523 m2/g.The densityviH is 0.910-0.940 g/cm