GRK 2802: IMPROVEMENT OF THE PROCESSABILITY AND THE PROPERTIES OF LIGNIN AND COLLAGEN BONDED MGO-C REFRATORY MATERIALS BY ETHYLENE GLYCOL ADJUSTMENT

Abstract

This study systematically investigates the influence of the ethylene glycol content on the physical properties of lignin- and collagenbonded MgO-C refractory materials, particularly the compressibility, density, and porosity. The results show that an ethylene glycol content of 1.5 wt.% results optimal material properties, achieving the highest geometric bulk density, lowest open porosity, and maximum cold crushing strength of the experimental series. This work highlights the crucial role of the moisture content on the processability and its impact on the mechanical properties of the final product. The findings provide valuable insights into optimizing the binder systems of MgO-C materials, leading to improved production processes and enhanced performance in hightemperature applications.