As a filling material in coatings, talc powder can minimize the cost of coating products. As raw materials continue to rise and business profits are repeatedly suppressed, it is inevitable that talc powder will be more widely used. Talc powder is not only a filling material for coating products to reduce costs. Compared with calcium carbonate, which is also a filling material, talc powder has an auxiliary effect on the performance of coating products. For example, talc powder is in the shape of flakes, so it has higher The stiffness, dimensional stability and heat resistance temperature are good, and the reinforcement effect is good. Calcium carbonate is generally granular, so its stiffness and other aspects are not as good as talc, but it is cheaper, has high whiteness, and has little impact on the impact toughness of plastics. Talc has a nucleating effect on polypropylene, while calcium carbonate has no obvious effect in this regard. Calcium carbonate can usually be divided into lig...