Additive Manufacturing: A Novel Method for Developing an Acoustic Panel Made of Natural Fiber-Reinforced Composites with Enhanced Mechanical and Acoustical Properties

Table 16

Difference between single screw and twin screw extruder [147].

Parameters	Single screw	Twin screw
Consumption of power (kJ/kg)	910 to 1520	410 to 620
Distribution of heat	Temperature difference is larger	Temperature difference is smaller
Rigidity	High	Low
Dissipation of power	Larger shear force	Smaller shear force
Cost	Low	High
Degasification	Simple	Complex
Water content (%)	12 to 35	10 to 96