Porophors Used in the Extrusion Process
The high density polyethylene (HDPE) modification by selected agents which are blowing agents during extrusion process, including the determination of modification effect on the selected physical properties and properties of the surface of HPDE extrusion products have been studied. The paper presents specification of the cellular extrusion process of thermoplastics with endothermic chemical blowing agents. The rotational speed of extruder, melt flow rate (MFR) and microscopic structure have been examined.