Thermal Decomposition Kinetics of PLLA/Talc/TBC Composites
To enhance the crystallizability and flexibility, Poly L-lactide (PLLA)/ Talc/ tributyl citrate(TBC) composites were prepared via melt extrusion and investigated by thermogravimetry (TG) and derivative thermogravimetry (DTG). It was shown that the thermal decomposition temperature of PLLA/Talc (97:3) and of PLLA/Talc/TbC (96:3:1) had increased 7.6 oC and 16.2 oC respetively compared with pure PLLA. The thermal decomposition kinetics of pure PLLA and composites were studied by using the Ozawa–Flynn–Wall (OFW) and the Friedman methods respectively, the results indicated that the apparent activation energies of PLLA/Talc/TBC composites increased sharply in the initial stage of the mass loss.
Ouyang Yun, Xu Min, Yang Li and Liu Xunting
K. Guo et al., "Thermal Decomposition Kinetics of PLLA/Talc/TBC Composites", Applied Mechanics and Materials, Vol. 262, pp. 572-576, 2013