With the rapid development of my country’s industry and the improvement of people’s living standards, the demand for various light-colored rubber products and daily necessities is increasing, and transparent light magnesium carbonate has become one of the important pigments in the industry. Transparent light magnesium carbonate, molecular formula 4MgCO3•Mg(OH)2•4H2O, relative molecular weight 467.64, is a white amorphous powder. Its chemical composition is a synthesis of magnesium carbonate and magnesium hydroxide, which is relatively stable in the air. Its molecular formula varies slightly with changes in production conditions. It is slightly soluble in water, weakly alkaline, easily soluble in dilute acid, and releases carbon dioxide by foaming and decomposition when exposed to acid. It can be decomposed into magnesium oxide and carbon dioxide by heating and calcining.
Hebei Messi Biology Co., Ltd. stated that the properties of transparent light magnesium carbonate are significantly different from those of other brands of magnesium carbonate. Because its refractive index is close to that of rubber, light-colored rubber products made by adding transparent light magnesium carbonate from Messi Biology have good transparency, bright coloring, and good reinforcement and filling effects. It is an ideal filler for the manufacture of translucent colored rubber products.
Production method
Transparent light magnesium carbonate is made of hydromagnesite and carbonized by a special process. The performance of basic magnesium carbonate used as a transparent rubber filler depends on the chemical purity, the difficulty of processing when combined with rubber, the color and transparency of the sulfurized rubber when combined, and the enhancement effect. These characteristics are often dominated by the physical properties of magnesium carbonate such as particle size, pseudo-specific gravity, content converted into magnesium oxide, degree of development of crystal structure, and refractive index. These physical properties are limited by the crystallization characteristics and shape of magnesium carbonate before conversion. Our special process has become an indispensable condition for manufacturing excellent rubber fillers.
Uses
Transparent light magnesium carbonate is mainly used as a filler and reinforcing agent for transparent or light-colored rubber products. After mixing with rubber, it hardly changes the refractive index of the rubber itself, and can enhance the wear resistance, flexural resistance and tensile strength of the rubber. It is mainly used as an additive for paints, inks and coatings, and is also widely used in medicine, food, cosmetics and other industries.