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

OSIM Nr. R102356
ISSN Print 0025-5289
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Materiale Plastice (Mater. Plast.), Year 2009, Volume 46, Issue 2,





Gheorghe Radu Emil MărieS Thermal Analysis of Some Mechanical and Physical Properties of Thermoplastic Polyurethanes Used in Manufacturing of Performance Sport Products


Abstract:
This paper presents the influence of processing temperature on the mechanical-physical properties of thermoplastic polyurethanes (TPU) used at injection moulding of performance sport products. The test-pieces were moulded at the following real injection temperatures : 200°C, 210°C, 220°C, 230°C and 240°C. It was determined that the in-mould pressure decreased with increasing of the processing temperature. Also the following thermal analysis were performed : Thermogravimetry (TG), Differential Scanning Calorimetry (DSC) and Dynamic-Mechanical Analysis (DMA). It was established that the processing temperature has a significant influence on the thermal stability and on the glass transition temperature of polymer while the flow temperature is slightly influenced by the processing temperature. Keywords: thermoplastic polyurethane (TPU), injection moulding, Thermogravimetry (TG), Differential Scanning Calorimetry (DSC) , Dynamic-Mechanical Analysis (DMA)



Issue: 2009 Volume 46, Issue 2
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