DRYING KINETICS OF DIFFERENT MORPHOLOGICAL MICRO-NANOSTRUCTURES OF MAGNESIUM HYDROXIDE

Two kinds of Mg(OH)2 nanosheets were prepared by precipitation conversion method, and Mg(OH)2 microparticles were synthesized by direct precipitation method. Drying kinetics experiments for three morphological micro-nanostructures of Mg(OH)2 were performed and drying rate curves were obtained at 80°C-140°C. Results indicate that their initial moisture contents are different, and their drying rate curves which exhibit three stages: a set-up period, a constant rate drying period and a decelerating rate drying period are similar.