КОЛОЇДНО-ХІМІЧНІ ВЛАСТИВОСТІ МОДИФІКО- ВАНИХ ДИСПЕРСІЙ МОНТМОРИЛОНІТУ ДЛЯ ДУБЛЕННЯ ШКІР

Purpose. Study of colloid-chemical properties of the dispersions of the modified montmorillonite for tanning materials and the efficient formation of the structure of the dermis. Methodology. Modified montmorillonite dispersion was prepared in a stepwise modification of the alkaline mineral hydroxycomplex chromium compounds. For studies of colloid-chemical properties of modified montmorillonite dispersions measured kinematic viscosity, pH of the dispersion was evaluated the level of adsorption of chromium compounds (III) and its resistance to change in pH. To determine the effectiveness of forming the structure of the dermis implementing technological processing pickled pelts heifers easily modified chromium compounds dispersion of montmorillonite and determined parameters of the chemical composition and physico-mechanical properties of the obtained leather. Findings. The use of modified chromium compounds montmorillonite dispersions based on their colloid-chemical properties of the structure contributes to effective formation of the dermis. Originality. Development of modified montmorillonite dispersions with necessary colloid-chemical properties for efficient tanning of leather. Practical value. The use of modified chromium compounds montmorillonite dispersions contributes to obtaining high-quality leather, it can reduce costs and improve the chrome tanning agent resource conservation and ecological production of leather. [ABSTRACT FROM AUTHOR]