The article presents an innovative device for manufacturing composites from polymer waste with a high degree of filling (50-80%) with mineral or organic additives. The technology aligns with the Circular Economy strategy, contributing to the effective management of plastic waste. The key feature of the device is its vertical plasticizing system, consisting of a cylinder with a specially designed screw with variable coil geometry and decreasing channel depth. The screw is equipped with mixing elements, ensuring effective homogenization of materials from polymer waste of various plastics that simultaneously have different input forms occurring as: granules, flakes, or powder. The system includes a heating system for controlling temperature in individual cylinder zones and in the special extrusion head zone with flow channels optimized for working with highly viscous polymer-mineral material compositions. Directly integrated with the head is a hot and cold air blowing system, acting on the extrudate, and a collecting system operating in three axes x, y, z. Products manufactured using the described device are characterized by good physico-mechanical properties and provide ecological benefits. These include achieving increased mechanical strength with enhanced flexibility and reduced plastic content in relation to the filler. The developed device represents an innovative solution in the field of polymer waste processing. Its unique construction enables the production of composite materials with favorable physico-mechanical properties while significantly reducing negative environmental impact, aligning with the trend of sustainable development and circular economy.

Acknowledgement:
The construction of the stant was financed by the project of the Ministry of Education and Science entitled Science for Society, Center for Innovation and Technology Transfer of Lublin University of Technology in 2023.

The research was carried out as part of the cooperation of inter-university research teams from the VIA CARPATIA 2023 Polytechnic Network - ISKRA project: Research on the impact of modifications of biodegradable aliphatic polyesters on the processing and functional properties of innovative polymer compositions.