Abstract
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.
Highlights
THIS paper has two goals: the first is development of extrusion procedure of non-standard pipe using poly(vinyl chloride) based compound and the second is characterization of extruded non-standard poly(vinyl chloride) pipe.The characterization of non-standard extruded PVC pipes includes testing of non-standard properties, standard PVC pipes characteristics and additional properties.Non-standard extruded PVC pipe propreties are specific dimensional demands, visual demands, hydraulic demands and mechanical demands.Standard extruded PVC pipes characteristics are density, visual appearance, Vicat softening temperature, dimensional longitudinal stability and resistance to external blows and resistance to dichloro methane.Additional tested properties are resistance to severe external blows, dimensional radial stability, impact resistance and hardness.Experimental part
In the first phase of the development of the non-standard extruded PVC pipes, an attempt of obtaining the mentioned product was done on a processing equipment for the production of a nominal outside diameter=50 mm by adjusting certain technological parameters of extrusion
Investigation of the mechanical demands of the nonstandard extruded PVC pipe consists of determining the resistance to external compressive stress in radial direction and determining the resistance of pipe, i.e. ring to internal tensile stress in radial direction
Summary
THIS paper has two goals: the first is development of extrusion procedure of non-standard pipe using poly(vinyl chloride) based compound and the second is characterization of extruded non-standard poly(vinyl chloride) (abbreviated: PVC) pipe. The characterization of non-standard extruded PVC pipes includes testing of non-standard properties, standard PVC pipes characteristics and additional properties. Non-standard extruded PVC pipe propreties are specific dimensional demands, visual demands, hydraulic demands and mechanical demands. Standard extruded PVC pipes characteristics are density, visual appearance, Vicat softening temperature, dimensional longitudinal stability and resistance to external blows and resistance to dichloro methane. Additional tested properties are resistance to severe external blows, dimensional radial stability, impact resistance and hardness
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