Autori: Ghita E, Gillich GR, Bordeaşu I, Vodã M, Troi C

Editorial: Revista Materiale Plastice, 44 (2), p.158-162, 2007.

Rezumat:

Polypropylene or polypropene (PP) is a thermoplastic polymer, made by the chemical industry and used in a wide variety of applications, including food packaging, ropes, textiles, plastic parts and reusable containers of various types, laboratory equipment, loudspeakers, polymer banknotes and vehicle components. The authors had tested the behavior of polypropylene used in the fabrication of vehicle components (internal part of doors, instrument panels, seat elements, a.o.) under axial stress in various conditions (different speed levels for the applied force, simulated damages like holes and initial application of stress cycles). We have determined some mechanical properties of polypropylene, which permit to fix the conditions in which it can be used successfully in fabrication of vehicle components. A comparative analysis between the polypropylene versus LDPE and HDPE has been performed.

Cuvinte cheie: polimeri, tensiuni, comportare // polimers, stress, behavior