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Materiale Plastice
 Cite as: Mater. Plast.
https://doi.org/10.37358/Mat.Plast.1964

OSIM Nr. R102356
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Materiale Plastice (Mater. Plast.), Year 2013, Volume 50, Issue 3,





Janos TIMAR, Corneliu COFARU, Mariana Domnica STANCIU*, Ioan CURTU, Daniela FLOREA, Dinu COVACIU Rheological Behaviour of Copolymer Stamylan P108 MF used in Bumper Structure from Automotive Industry


Abstract:
In the research paper we present a study regarding the road traffic safety and the ageing phenomenon of vehicle bumpers. For our study we used the accelerated ageing in conventional environment which is the most complex and comprehensive method to determine the bumper ageing. This method is used for plastic materials and comprehends ageing methods which simulates the natural exposes: taking into account the temperature, humidity and the presence of some chemicals, oils and fuels. Also, the method consists in the ageing of plastic materials which initially were conditioned in climatic chamber. The final evaluation happens when the object we study is tempering to the ambient temperature in the same climatic chamber (T = 23°C ± 2°C , UR = 50% ± 5%). Keywords: ageing, strength depreciation, stress, strain, rheology, fracture



Issue: 2013 Volume 50, Issue 3
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