Influence of injection conditions on the dynamic properties of PP composite with fiber glass
Dariusz Kwiatkowski Politechnika Częstochowska, Katedra Przetwórstwa Tworzyw Sztucznych i Zarządzania Produkcją, al. Armii Krajowej 19c, 42-200 Częstochowa
Annals 4 No. 12, 2004 pages 374-377
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abstract Measurements of the dynamical properties are universal method of investigations of the materials behavior exposed to the dynamic sinusoidal variable forces. In the paper the results of the tests of influence of injection conditions on dynamic properties have been presented. PP composite with 15% of fiber glass content were produced on the industrial production line in Polimarky, Rzeszów. The specimens for tests were injected on the Krauss-Maffei injection moulding machine KM65-160 C1 under various injection parameters. The tests were performed by the DMTA method. The specimens were bended with a frequency 1 Hz in a temperature range from 193 to 393 K and a heating rate 2 K/min. For the specimens made under various injection conditions the run of changes of the storage modulus and the loss tangent versus temperature for PP composite with fiber glass has been presented and analysed. Key words: composite, dynamic properties, DMTA