A pigment–filler in rubber compounds based on calcium carbonate containing waste

Abstract

Abstract The article presents theoretical background and experimental data on the use of thermally modified waste of the sugar industry – sugar defecate as a black pigment filler in rubber compounds instead of carbon black and chalk. In previous studies, a method for processing calcium carbonate-containing raw material by thermal modification of its surface was suggested. As a result of heat treatment at a temperature of 600°C, a thermolysis sugar defecate TD600 - a fine black powder - was obtained. It was established that on the surface a layer of carbon (soot) coating CaCO3 particles is formed. The purpose of this article is to study the possibility of using the thermolysis defecate TD600 as a pigment-filler in rubber compounds. To establish the possibil-ity of using the TD600 thermolysis defecate as a pigment-filler and an amplifier of polymer compositions, its physicochemical parameters were studied and compared with traditional pig-ments. A comparative analysis of physicochemical properties of fillers used in rubber com-pounds and thermolysis defecate TD600 was carried out. Properties of the pigment filler corre-spond to the parameters of materials used in rubber compounds; its oil absorption (80 ml/100g) is similar to that of classic carbon P514. The use of TD600 a black pigment-filler will solve two problems: saving raw materials and energy and improving the ecological situation.