详情描述

Heavy calcium carbonate, commonly referred to as heavy calcium, is a white powder produced from limestone through the processing of a lime stone mill. Its primary component is CaCO3. Heavy calcium boasts high brightness, good purity, soft color tone, and stable chemical composition. It is commonly used as a filler in various industries such as artificial tiles, rubber, plastics, papermaking, coatings, paints, inks, cables, construction materials, food, textiles, feed, toothpaste, etc., to increase product volume and reduce production costs. In rubber applications, it can increase the volume of rubber, improve its workability, act as a semi-reinforcing or reinforcing agent, and adjust the hardness of rubber.

Applications of Heavy Calcium Powder:

Due to its lower specific surface area and oil absorption, it is easier to mix with resins.

②Less volume and higher density of filling material at the same filling quantity.

③Different raw materials have varying types and amounts of impurities, resulting in inconsistent color of the finished products. In contrast, light calcium carbonate can be adjusted for particle crystal shape according to different application requirements, offering good versatility; it can increase the volume of the finished product with the same amount of filling due to its large settling volume or low bulk density; the color difference is even due to fewer impurities; the mechanical properties of the filling material are better with a smaller particle size under the same amount of filling; however, it has a larger specific surface area and oil absorption value, which makes it more resistant to mixing with resins (harder to blend).