1. Light calcium carbonate
is widely used in rubber products, such as tires, conveyor belts, hoses, rubber cloth and medical rubber products. It can reduce the amount of rubber, reduce costs and also play a reinforcing and semi-reinforcing role. The application of light calcium carbonate
in plastics can reduce the amount of organic raw materials, reduce costs, improve the stability, hardness and rigidity of plastics, improve the processing performance of plastics, improve heat resistance and improve the astigmatism of plastics.
2. Light calcium carbonate can play a skeleton role in plastic products. It has a great effect on the dimensional stability of plastic products, and it can also improve the hardness of products, and improve the surface gloss and smoothness of products. Adding calcium carbonate to plastics products can improve the heat resistance. Because the whiteness of calcium carbonate is over 90%, it can also replace expensive white pigments to play a certain whitening role.
3. Light calcium carbonate is the largest mineral filler in the paint industry. It is mainly used in automobile coatings, powder coatings and building latex coatings. It can adjust the gloss, brightness, chemical resistance, improve the rheological property and reduce the cost greatly. For example, the amount of water-borne paint can reach 20%-60%.
4. The application of light calcium carbonate in papermaking can improve the whiteness and glossiness of paper products. Its high expansibility can greatly reduce the consumption of pulp in papermaking mills.
5. Light calcium carbonate is used as a friction agent in toothpaste because it can not only remove plaque, material residue, polish teeth without harming enamel and odor permeability with good paste diffusion. In addition, it is slightly alkaline, which can neutralize acid metabolites of dental plaque bacteria, such as citric acid, and reduce oral pH value. It has multiple functions of removing acid dental plaque, neutralizing acid metabolites in oral cavity, etc. It is used in pharmaceutical formulations as neutralizer, filter aid, buffer and solubilizer, as well as filler and calcium source supplement. It can be used as loosening agent, starter and nutritional supplement in food processing.