The extrusion was performed
on a single screw thermoplastic extruder (Imbramaq, PQ-
30, Ribeirao Preto-SP, Brazil), with a 3:1 compression ratio, feed ~
rate of 335 g min1
, die opening of 4 mm diameter, screw speed of
381 rpm (90 Hz), smooth surface barrel, and temperatures at the
first, second and third heating zone of the extruder of 30 C, 60 C
and 75 C, respectively.