The reliability of use of recycled thermoplast

Abstract

In this work we presented the possibility of re-use of already used polymer materials by their recycling from the point of view of the change of mechanical characteristics. In the experimental part, the standard test tubes of basic material of polyethylene, polystyrene and polypropylene as well as secondary materials were tested through five recycling cycles. The measurement of the values characteristic for testing by the process of tension, removing, and impact was performed as well as the measurement of hardness. Scientific part presents the results of change of the most important mechanical characteristics and laws of their changes depending on the recycling cycles.