Heavy calcium carbonate, a powder material processed from natural minerals such as calcite and marble, plays a significant role in multiple industrial sectors. A comprehensive understanding of its application areas and requirements is crucial for corporate product planning and technological development.
In the paper industry, heavy calcium carbonate serves as an important filler and coating pigment, significantly enhancing paper’s opacity, brightness, and smoothness while reducing moisture absorption and deformation, thereby improving printing performance and reducing costs. Developed countries like Europe often choose chalk with high purity and good whiteness as the preferred raw material to ensure paper quality.
The plastics industry is the largest consumer of heavy calcium carbonate. Adding calcium carbonate to plastics such as polyvinyl chloride (PVC) and polyethylene (PE) can enhance the product’s dimensional stability, hardness, and rigidity, improve processing performance, and increase heat resistance and light scattering properties.
In coatings, heavy calcium carbonate is a widely used extender pigment that acts as a framework and filler, significantly improving coating performance. Calcium carbonate of different particle sizes has different application effects in coatings. For example, ultrafine heavy calcium carbonate can significantly shorten sanding time and improve the hiding power and viscosity of coatings.
Furthermore, in the rubber industry, heavy calcium carbonate is mainly used as a filler, which can increase the stiffness of rubber compounds, improve electrical insulation, and reduce production costs. In the production of breathable membranes, the addition of special calcium carbonate is one of the key factors affecting the performance of breathable membranes.
Heavy calcium carbonate is also widely used in food additives, pharmaceuticals, toothpaste, animal feed, and artificial stone. In the pharmaceutical field, it is commonly used as a filler for drugs, utilizing its acid-resistant properties to maintain drug stability. In toothpaste, it is a commonly used abrasive that can enhance the cleaning effect of toothpaste. In animal feed, it serves as a calcium source for calcium supplementation and plays an important role in animal bone development. In the artificial stone field, heavy calcium carbonate powder is the main filler, which can significantly reduce production costs and improve environmental performance.
According to the Color Masterbatch Industry Network, with the development of technology, the application areas of heavy calcium carbonate will further expand, and its important role in various industries will become more prominent. Therefore, for companies, a comprehensive understanding of the application areas and requirements of calcium carbonate will help in better product planning and technological development, adapting to market demands and enhancing competitiveness.