The relevance of the study is due to fact that loading granulated polymer material into working hopper extruders mainly carried out manually from bags by production operators. capacity hoppers limited with a significant height bulk material, an increase in static pressure occurs lower layers, which leads formation vaults, uneven supply cylinder and deterioration quality products. Since work pro...

This study aims to determine the optimal 3D Printer filament extruder machine design, design of components for production, single screw used production. The research method is creating flow chart, result calculation diameter 1.77 mm, by measuring taking a 2 meters long sample be measured every 10 cm. most influential in this are diameter, length extruder, winding process, production capacity an...

As a means to decrease the amount of waste tires and to re-use tire rubber for new tires, devulcanization of ground passenger car tires is a promising process. Being an established process for NR and EPDM, earlier work has shown that for ground passenger car tire rubber with a relatively high amount of SBR, a devulcanization process can be formulated, as well. This was proven for a laboratory-s...

A prototype modular single screw extruder fitted with a screw extracting device is used to monitor melting of an immiscible polymer blend (PP/PA6, with different weight ratios) in this popular type of processing equipment. As anticipated, the observed phenomena are much more complex than those involved in extruding PP or PA6, when the well known Maddock/Tadmor mechanism is valid. Consequently a...

This paper describes a finite element formulation designed to simulate polymer melt flows in which both conductive and convective heat transfer may be important, and illustrates the numerical model by means of computer experiments using extruder drag flow and entry flow as trial problems. Fluid incompressibility is enforced by a penalty treatment of the element pressures, and the thermal convec...

Devolatilization of solvents from viscous polymer cement is realized through stripping of solvent with steam in stirred vessels or directly by evaporating the solvent from the polymer. The later so-called direct desolventizing is realized in extruders or high volume kneaders. All 3 methods involve additional energy to drive out solvent either by partial pressure through additional steam (steam ...

In this contribution, a Genetic Programming (GP) algorithm is used to develop empirical models of chemical process systems. GP performs symbolic regression, determining both the structure and the complexity of a model. Initially, steady-state model development using a GP algorithm is considered, next the methodology is extended to'the development of dynamic input-output models. The usefulness o...

Abstract The work is devoted to the development of an application for monitoring and controlling state equipment (extruder) petrochemical industry based on sensor readings using a machine learning model. statistical relationships technological process parameters are analyzed, most significant influencing occurrence failures determined SHAP values. hypotheses regarding effectiveness various algo...

High impact polystyrene (HIPS)/corn starch blends were prepared in presence of glycerol as a plasticizer via melt extrusion process by a twin-screw extruder. The novelty of this work is first, because of the use of pre-gelatinized corn starch as modified one and second, the procedure of making blends by extruder which makes it ease of access and also industrially possible. The blends were then ...