In the calcium carbonate industry, these high-end products are the leaders
In recent years, the calcium carbonate industry has experienced severe internal competition and intense low price competition, and the industry's development model has gradually shifted towards innovation driven development.
At the same time, high value-added products such as modified calcium carbonate, ultrafine heavy calcium carbonate (particle size ≤ 5 μ m), nano calcium carbonate, toothpaste calcium carbonate, food grade calcium carbonate, pharmaceutical calcium carbonate, cigarette paper calcium carbonate, breathable film calcium carbonate, high-end plastic calcium carbonate, electronic grade calcium carbonate, etc. have obvious advantages in market competition and have become a strong driving force for industry scale growth.
1. Modified calcium carbonate
Surface modification is an important means to enhance the application performance, improve applicability, expand market and usage of calcium carbonate. The dispersion and compatibility of calcium carbonate treated with surface modifiers (coupling agents, stearic acid, inorganic salts, etc.) are improved, the usage effect is significantly enhanced, the user experience is good, and the product price naturally increases.
2. Ultra fine heavy calcium carbonate (particle size ≤ 5 μ m)
Ultra refinement is an important way to improve the quality of calcium carbonate. For example, if the particle size of calcium carbonate reaches 2500 or 5000 mesh, there will be a breakthrough in its application in plastics. With the increasing demand and quality requirements of ultrafine powder in the market, the proportion of ultrafine heavy calcium carbonate in the total output continues to increase.
3. Nano calcium carbonate
The particle size of nano calcium carbonate ranges from 1 to 100nm, including ultrafine calcium carbonate (particle size 20-100nm) and ultrafine calcium carbonate (particle size 1-20nm).
Compared with ordinary calcium carbonate, nano calcium carbonate exhibits significant advantages in reinforcement, dispersibility, heat resistance, and dimensional stability, and is widely used in fields such as rubber, plastics, papermaking, coatings, inks, sealants, lubricants, concrete, food, medicine, ceramics, lithium batteries, and environmental protection.
4. Calcium carbonate for toothpaste
Friction agents are essential components in toothpaste formulas, and commonly used toothpaste friction agents include hydrated silica (silicon dioxide), calcium hydrogen phosphate, calcium carbonate, trihydrate alumina, etc.
Among them, toothpaste with calcium carbonate as the abrasive currently accounts for about 50% of the sales volume in China's toothpaste market. Calcium carbonate is characterized by its low price and easy availability (abundant raw materials such as limestone or calcite), and is widely used in mid to low end toothpaste.
5. Food grade calcium carbonate
Nano calcium carbonate with a specific surface area of 30m2/g can increase the calcium content of dairy beverages and inhibit precipitation. Nano calcium carbonate used in seafood sauce products can give seafood sauce texture, increase sauce strength, obtain soft taste, and extend shelf life.
6. Calcium carbonate for cigarette paper
Calcium carbonate is one of the important raw materials for producing cigarette paper, accounting for 40-50% of the quality of cigarette paper. Its content in finished paper is 25% -30%, which means that one-third of cigarette paper is composed of calcium carbonate.
7. Calcium carbonate for breathable membrane
Breathable film is made by blending about 50% special calcium carbonate into PE or PP carrier, extruding it into a film, and then stretching it to a certain ratio. It is widely used in the packaging of medical and health products.
8. Calcium carbonate for high-end plastics
With the continuous improvement of people's requirements for the performance of plastic products, the application of calcium carbonate in high-end plastic products is becoming increasingly widespread. Adding an appropriate amount of high-performance calcium carbonate to engineering plastics such as automotive parts and electronic and electrical casings can reduce costs while improving the dimensional stability, heat resistance, and mechanical strength of the products.
