The research of mechanical properties and structure of the polyethylene composites with cardboard fibre
Adam Gnatowski Politechnika Częstochowska, Instytut Przetwórstwa Polimerów i Zarządzania Produkcją, al. Armii Krajowej 19c, 42-200 Częstochowa, Poland
Quarterly No. 1, 2008 pages 99-103
DOI:
keywords: composites, mechanical properties, cardboard fibre, structure
abstract The main purpose of polymeric composites manufacturing is wish to eliminate or reduce drawbacks which polymers are characterised with and also to strive for reduction of the price of expensive polymers with particular, very precious properties by mixing them with cheaper fillers but without significant deterioration of their properties. In this work the results of investigations of mechanical properties PE-HD with addition of cardboard fibre were presented. The properties of the polymer composites depend significantly on the type of the components and also on the mixing method including the order of the components adding. That kind of influence manifests especially in the change of the mechanical properties. The investigations for the influence of the fillers on the properties of prepared composites have been conducted. Mechanical received characterizations as the result of research at the static load measured in the room temperature are inadequate to forecasting of the comportment of the material in given conditions of the use and longs. Fully to characterize properties of investigated composites and to rate material will keep in provided for conditions of the usage, was qualified temperature dependences of the value of dynamic Young modulus and the tangent of mechanical losses and was qualified the influence of the change of the frequency. Investigations of crystallization degree by means of DSC method as well as investigations of the structure using optical microscope have been conducted. In case of mechanical properties, while increasing the amount of cardboard fibre in the composite the impact resistance and hardness increases.