Influence of Different Fillers on the Tensile Properties of 50/50 NR/NBR Blend

Abstract

This paper reviews the relationship of the effect of different fillers used in the natural and nitrile rubber compounds on the tensile properties. The use of fillers in the rubber compounds is well known in order to modify and improve their properties. Thus, four different grades of carbon black and non-carbon black fillers were used to achieve the aim of the study. A comparison between carbon black and calcium carbonate system leads to further scientific findings for the understanding of the tensile properties of filled rubber compounds. The tensile properties of the five samples were investigated by using a Tensile Instron Machine. Five test pieces were tested for every sample at a stretching rate of 500 mm/min at standard laboratory temperature. Then, median values of the five test pieces of each sample were calculated. As the conclusion, different types of fillers results to different properties of the elastomers. Carbon black fillers can be proved to have better tensile properties compared to non-carbon black fillers. The best filler with the highest tensile properties was N220 with 23.63 MPa and elongation at break at 638.63 %.