PRODUCTION OF BLACK SHOE POLISH FROM CARBON BLACK DERIVED FROM WASTE CAR TYRE

Abstract

The research investigated the production of black shoe polish using carbon black obtained from waste car tyre. Waste car tyre of particle size of 2 to 4 cm was pyrolysed in a hot muffle furnace at a temperature range of 450-600 oC at a heating rate of 20 oC/min. The maximum carbon black yield 40 % was obtained at temperature of 450 oC. The pyrolysed carbon black produced was demineralized using hydrochloric acid (HCl) in order to improve its quality and to ensure its suitability in the production of black shoe polish. The proximate analysis conducted on improved carbon black revealed that it has the following values: ash content (6.28 %), moisture content (2.20 %), bulk density (0.924 g/cm3 ), pore volume (0.446 cm3 /g) and porosity (0.387) respectively. The produced black shoe polish and the commercial black shoe polish were compared in terms of viscosity, pH, density and specific gravity respectively. For commercial black shoe polish, the following values were reported: viscosity = 3.67 cP, density = 0.62 g/cm3 , specific gravity = 0.87 and pH = 5.64 respectively. For black shoe polish produced, the following values were obtained: viscosity = 4.84 cP, density = 0.63 g/cm3 , specific gravity = 0.94 and pH = 6.31 respectively. Comparing both results, it can be concluded that black shoe polish produced and commercial black shoe polish have very close values in terms of viscosity. pH, density and specific gravity.