PENGARUH PENCAMPURAN CARBON BLACK FILLER TERHADAP KOMPOSIT POLYPROPYLENE DAN KARET ALAM SEBAGAI ELASTOMER TERMOPLASTIK DENGAN METODE GRAFTING

Abstract

This research studied the effect of the carbon black filler on PP/NR the composite. Thermoplastic elastomers produced are based on Polypropylene and natural rubber for industrial use. This research was conducted in order to develop ETP products that have been produced become prime material and can be accepted by the automotive and medical equipment industry. The method used in this study was Polypropylene grafting process with Maleic Anhydride (PP-g-MA). The grafting process was carried out at the temperature of 160°C and a time of 10 minutes. The variations in the composition of PP/NR/CB are (30:70:0) % by weight, (30:69:1) % by weight, (30:68:2) % by weight and (30:67:3) % by weight. The characteristictest which was conducted included the physical and mechanical properties. The obtained results showed that the composite mechanical test in the form of tensile test increased as the level of filler increased, and the mechanical test in the form of elongation at break kept decreasing as the level of filler increased, but the mechanical test in the form of density increased as the level of filler increased. The best value was obtained from the composite with the ratio of PP/NR/CB (30:67:3) % by weight in the form of the mechanical properties of tensile strength by 1.66 N/mm² and the best elongation at breakobtained from the composite ratio of PP/NR/CB (30:70:0) %  by weight was 268.36 %.