Kulchanat Prasertsit, Namthip Rattanawan and Juraivan Ratanapisit

pp. 425 - 430

Abstract

Wood vinegar, a product of wood burning in airless condition, is well known as an all- purpose natural chemical, since it can be
used in agricultural, food, and pharmaceutical industries, even for home care products. Because of its acidity and anti microorganism growth property, it is of interest to use wood vinegar for rubber products by fully or partially replacing the usage of
traditional acids in the production processes. This work is to study effects of crude coconut shell wood vinegar on natural
rubber products. The experiment was conducted by introducing various concentrations of wood vinegar to block and sheet
rubbers. Results showed that wood vinegar can improve initial plasticity, plasticity retention index and Mooney viscosity of
rubber products. Moreover, it can also retard the growth of fungi in the products.

Keywords

• wood vinegar
• natural rubber
• plasticity retention index
• Mooney viscosity
• anti fungi