The Efficiency of Wood Vinegar from The Mangosteen Peel for The Rubber Sheets Production

Abstract

In this work, the efficiency of wood vinegar from Mangosteen peels for the sheet rubber production was studied. In the first step, wood vinegar was produced using a pyrolysis process. In the second step, wood vinegar from Mangosteen was used to accelerate the coagulation process of the rubber sheet production. The coagulation time was compared with these of the rubber sheet production using sulfuric and formic acids. Finally, wastewaters from the rubber sheet production process were physically and chemically characterized. The results show that the ratio of 4000 ml of latex: 2000 ml of water: 500 ml of wood vinegar accelerates the coagulation process of latex. Coagulation times accelerated by wood vinega from Mangosteen peels (25.29 min) were slightly shorter than that accelerated by sulfuric acid (37.46 min) and formic acid (45.43 min). Moreover, wastewater produced by the rubber sheet production using wood vinegar as an accelerator shows the level of malodor lower than that using sulfuric and formic acids. However, wastewater from rubber sheet production by wood vinegar, sulfuric and formic acid must be treated before discharging to natural.