Ultrafine calcium carbonate has a wide range of applications in industry. Below, the editor from Musen will provide a detailed introduction to its specific applications.

Applications of ultrafine calcium carbonate in industry:

Due to its high whiteness, ultrafine calcium carbonate can serve as a framework in products, enhance the hardness of products, and improve the surface gloss and smoothness of products. It can also replace expensive white pigments.

Ultrafine calcium carbonate can be used as a filler in high-end cosmetics, soaps, facial cleansers, and children's toothpaste. In industry, ultrafine calcium carbonate is an important component and calcium source additive in culture media, used as a buffering agent in the production of antibiotics, and also plays a certain pharmacological role in painkillers and stomach medications.

In addition, the higher the oil absorption value of ultrafine calcium carbonate used in rubber, the better its wettability and reinforcement properties for rubber. It has been found that among different crystal forms of ultrafine calcium carbonate, the chain-like ultrafine calcium carbonate has the best reinforcement effect on rubber.

The plastic industry is one of the largest users of ultrafine calcium carbonate in China and is also a field with relatively mature application technology. Ultrafine calcium carbonate has significant effects in increasing the volume of plastic products, reducing costs, improving stability, hardness, and rigidity, enhancing the processing performance of plastics, improving heat resistance, and enhancing the light scattering, scratch resistance, smoothness, and toughness against impact strength of notches during the mixing process.

It has been found that the application effect of ultrafine calcium carbonate specifically for plastics is best with cubic crystal forms. Generally, cubic crystal form products have low oil absorption values, while chain-like crystal form products have high oil absorption values. Since plastic processing requires the use of plasticizers, if the oil absorption value of calcium carbonate is high, it will absorb a large amount of plasticizer, which will worsen the processing performance of plastics. For ultrafine calcium carbonate used for plastic filling, it is necessary to select appropriate surface treatment agents and corresponding activation methods to improve product dispersibility and prevent secondary agglomeration. Due to particle agglomeration, the actual particle size of calcium carbonate products is much larger than that of the primary particles, and during plastic processing, the mixing shear force is limited, making it difficult to break up the agglomeration, which inevitably leads to local defects, and its application effect is not as good as that of ordinary active calcium carbonate.