Per: paula munier ferreira (UENF), Geovana Carla Girondi Delaqua (UENF), Carlos Maurício Fontes Vieira (UENF)
Abstract:
The formulation of ceramic masses requires a long process of research and testing to achieve the ideal composition. In the shaping of ceramic products, especially in extrusion, plasticity is crucial, determining the adaptability of the mass. Additives such as plasticizers and deflocculants are used to improve plasticity, ensuring optimal flow. This study analyzes the impact of different additives on the plasticity of ceramic masses, aiming to reduce the amount of water required for forming. The inclusion of glass waste in the mass was also investigated, since the ceramic industry stands out for its use of waste. Formulations were developed with clay mass, glass waste and four types of additives: corn starch, sodium silicate, CMC and citric acid. The results highlighted that all additives, with the exception of CMC, reduced moisture and plasticity compared to mass 0 (reference), with citric acid being the most effective. Furthermore, the potential of glass was also highlighted, which in all cases contributed to reducing the plasticity of the masses and, consequently, the amount of water required.