Development аnd Characterization оf Non-Standard Extruded Poly(vinyl chloride) Product

 

Jovan Radulović

 

This research work focuses on the development of extrusion of non-standard PVC pipe and characterization of the obtained product. The extrusion technology and poly(vinil chloride) polymer are described in shortest. Non-standard extruded PVC pipes were developed in three phases. Characterization of the non-standard extruded PVC pipes includes testing of non-standard properties, standard PVC pipes characteristics and additional properties. Non-standard properties include specific dimensional (non-standard outside diameter and inside diameter), hydraulical (hydraulic burst pressure in a short period of time in water-air and water-water experiments) and mechanical (external radial compressive force and internal tensile radial strength) characteristics. The standard extruded PVC pipes characteristics were, also, determined (density, visual appearance, Vicat softening temperature, dimensional longitudinal stability and resistance to external blows and to dichloro methane). Additional tested properties are resistance to severe external blows, dimensional  radial stability, impact resistance and hardness. Deliberately produced damage  has no negative effect on pipes’ hydraulic and mechanical characteristics.

Based on presented results concerning the non-standard, standard and additional properties and deliberately produced damage, it is concluded that a high quality non-standard extruded PVC is developed.

 

Key words: plastics, polyvinyl chloride, extrusion, pipe, mechanical characteristics.