To evaluate the effects of nanoclay and melt compounding on the molecular structure (e.g., possible material degradation) of the PLA composites, a melt flow indexer (Tinius Olsen, Model MP1200) measured the melt flow index (MFI) of the composites. The temperature of the melt was kept at a uniform 190 °C temperature and the 2.16 kg load was applied to extrude the melt. A 100 g rod was used as a plunger. The measured values presented below were based on the mass flow rate scaled over a 10-min period.