Device and method of producing shaped elements

Description: The invention enables the production of layered shaped elements from polymer waste. The process combines thermal plasticizing, layer winding and application of organic-mineral additives to obtain compact barrel-, cylinder- or sphere-shaped products with improved functional properties.

The invention concerns a device and a method for manufacturing shaped elements mainly from waste polymer materials with organic and mineral additives. The solution supports the reuse of polymer waste in the form of granulate, powder or flakes and enables it to be converted into compact products with a repeatable axisymmetric shape, such as a barrel, cylinder or sphere. The process involves thermal plasticizing of the polymer material and forming it in layers. The extrudate, at about 150°C, is introduced between spray nozzles, where an organic-mineral material is applied using compressed air. Subsequent layers of extrudate are then wound onto the inner surface of a guide roll and cooled with compressed air to about 80°C. After setting the position of the guide roll and the shaping roll, the wound material is pressed and transferred to a shaping die. The obtained product has a characteristic layered structure consisting of alternating thick polymer layers and thin organic-mineral layers. By selecting appropriate additives, it is possible to improve selected properties of the final product, including mechanical strength, flexibility, resistance to flame action and durability.

Organisation: Lublin University Of Technology

Innovator(s): Filip Longwic, Tomasz Klepka, Sebastian Białasz

Category: Other/Miscellaneous

Country: Poland