Abstract
On the basis of experimentally determined characteristics of low-density polyethylene, geometric dimensions of extruder parts and using COMSOL MULTIPHYSICS software, a digital model of the apparatus was created and hydrodynamic calculationof the polymer melt flow velocity from the extruder nozzle was performed. The agreement of the experimentally measured polymer melt flow velocity with the one calculated using the model is within the acceptable tolerance. This indicates the adequacyof the digital twin model, which can be used to predict the viscosity properties of composite materials based on low-density polyethylene and process conditions of their production by extruder blending.
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