Rheological behavior and extrudate swell of PLA filled with nanoclay

Abstract

This research was investigated rheological behavior and extrudate swell of polylactic acid (PLA) filled

with nanoclay in capillary rheometer. Generally, all compositions exh1bited pseudo plastic behavior. Effect of

fillers loading was also investigated. Af1 increasing amount of nanoclay tend to decrease shear stress, shear

viscosity and elongational viscosity especially 10 wt% of nanoclay. Also, 10 wt% of nanoclay composites

presented swelling ratio with lower than swelling of neat PLA. Following both UD ratios (10/1 and 20/1).

the best ratio to improve rheological behavior and extrudate swell was nanoclay composites filled with 10 wt% of nanoclay.