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.
The extrusion was performedon 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 of381 rpm (90 Hz), smooth surface barrel, and temperatures at thefirst, second and third heating zone of the extruder of 30 C, 60 Cand 75 C, respectively.
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