Porophors Used in the Extrusion Process

Tomasz Garbacz1 and Ludmila Dulebova2
1Lublin University of Technology, Faculty of Mechanical Engineering, Department of Polymer Processing 36, Nadbystrzycka str., 20-618 Lublin, Poland; t.garbacz@pollub.pl 2Technical University of Kosice, Faculty of Mechanical Engineering, Department of Technologies and Materials 74, Masiarska str., 040 01 Kosice, Slovak Republic; ludmila.dulebova@tuke.sk
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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.

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