This article deals with the study of the utilisation of irradiated HDPE products after their end-of-life cycle. Today, polymer waste processing is a matter of evermore intensive discussion. Common thermoplastic waste recycling-especially in the case of wastes with a defined composition-is generally well-known-and frequently used. On the contrary, processing cross-linked plastics is impossible to do in the same way as with virgin thermoplastics-mainly due to the impossibility of remelting them. The possibility of using waste in the form of grit or a powder, made from cross-linked High Density PolyEthylene (rHDPEx) products, after their end-of-life cycle, as a filler for virgin Low Density PolyEthylene (LDPE) was tested in a matrix. It was found that both the mechanical behaviour and processability of new composites with an LDPE matrix, with rHDPEx as a filler, depend-to a high degree-on the amount of the filler. The composite can be processed up to 60% of the filler content. The Polymer Mixture Fluidity dropped significantly, in line with the amount of filler, while the mechanical properties, on the other hand, predominantly grew with the increasing amount of rHDPEx.

Department of Polymer Processing Slovak University of Technology in Bratislava Vazovova 5 812 43 Bratislava Slovakia

Faculty of Applied Informatics Tomas Bata University in Zlin CEBIA Tech Nad Stranemi 4511 760 05 Zlin Czech Republic

Faculty of Technology Tomas Bata University in Zlin Vavreckova 275 760 01 Zlin Czech Republic

SKODA AUTO a s tr Vaclava Klementa 869 293 01 Mlada Boleslav Mlada Boleslav 2 Czech Republic

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