The TGA and DTG curves of neat PLA and PLA/MCC showed
a similar decomposition pattern of one-step degradation process
represented by a single peak as shown in Fig. 2. The similar result
was reported by Zhou, Yu, Zhu, and Qin (2011) when using MCC as
reinforcement in poly (3-hydroxybutyrate-co-3-hydroxyvalerate).
From Fig. 2, it can be concluded that all PLA/MCC composites
produced are thermally more stable than pure PLA. This means
that incorporation of the MCC induced the thermal stability of
pure PLA. Similar results was also reported by Chuayjuljit, Suuthai,
and Charuchinda (2010) when they studied the effect on
MCC filled poly (vinyl chloride) film prepared from cotton fabric
waste.