In recent years, due to the improvement of environmental protection awareness, the state has vigorously advocated environmental protection, and its ore processing has reached an economic climax. As we all know, heavy calcium carbonate is referred to as heavy calcium for short. It is a white powder processed with high-quality calcite as raw material. Its main component is CaCO3. It has the characteristics of high whiteness, good purity, soft hue and stable chemical composition. Therefore, heavy calcium is a good filler commonly used in industry.
Heavy calcium is usually used as filler. It is also widely used in man-made floor tiles, rubber, plastics, papermaking, coatings, paints, inks, cables, building supplies, food, medicine, textiles, feed, toothpaste and other daily chemical industries. As filler, it can increase the volume of products and reduce production costs. Used in rubber, it can increase the volume of rubber, improve the processability of rubber, play the role of semi reinforcement or reinforcement, and adjust the hardness of rubber.
In recent years, the state has been encouraging stone powder environmental protection. Stone papermaking and chemical coatings are one of the key projects. It is processed by Raymond mill to 1250 mesh heavy calcium powder, which plays an important role in rubber, chemical coatings, stone, papermaking and other industries. It has the functions of increasing surface gloss, improving whiteness and improving paper surface smoothness in the paper industry. It plays an anti sedimentation role in the coating industry, and is used to fill materials, increase the film thickness, improve the wear resistance and weather resistance of the coating, and improve the powder loading rate and spraying area of powder coating at the same time; In the rubber industry, it can be used to improve the tensile, tensile, heat resistance, aging resistance, tear resistance and other properties of products; In the plastic industry, it is used to make composite materials, various plastic pipes, profiles, plastic products, degradable plastics and wires and cables; Make tires, rubber products and seal products in the rubber industry; Filling materials in vehicle surface painting, water-based coatings, cosmetics, toothpaste and other products.
Role of heavy calcium powder in various industries:
1. Heavy calcium powder for rubber industry
Heavy calcium carbonate powder for rubber has 400 mesh, Whiteness: 93%, calcium carbonate: 96%. Calcium carbonate is one of the largest fillers used in rubber industry. A large amount of calcium carbonate is filled in rubber, which can increase the volume of its products and save expensive natural rubber, so as to greatly reduce the cost. Calcium carbonate filled rubber can obtain higher tensile strength, tear strength and wear resistance than pure rubber sulfide.
2. Heavy calcium powder for plastic industry
400 mesh heavy calcium carbonate powder (heavy calcium powder) is used for plastic masterbatch and color masterbatch. It is required that the whiteness remains unchanged after high temperature heating. The ore structure is large crystalline calcite. The content of calcium carbonate is 99% and the whiteness is 95%. Calcium carbonate can play a role of skeleton in plastic products, play a great role in the dimensional stability of plastic products, and improve the hardness of products, And improve the surface gloss and surface flatness of the products. Because the whiteness of calcium carbonate is more than 90, it can also replace expensive white pigments.
3. Heavy calcium powder for paint industry
Heavy calcium carbonate (heavy calcium powder) for paint and emulsion paint has 800 mesh or 1000 mesh, Whiteness: 95%, calcium carbonate: 96%, and the amount of calcium carbonate is also large in the paint industry, such as more than 30% in thick paint.
4. Heavy calcium powder for waterborne coating industry
Heavy calcium carbonate (heavy calcium powder) for waterborne coatings has 800 mesh or 1000 mesh, Whiteness: 95%, calcium carbonate: 96%. Calcium carbonate is more widely used in waterborne coatings industry, which can make the coatings have the characteristics of no settlement, easy dispersion and good gloss. The dosage in waterborne coatings is 20-60%.
5. Heavy calcium powder for paper industry
325 mesh of heavy calcium carbonate (heavy calcium powder) for papermaking, whiteness requirement: 95%, calcium carbonate content: 98%, the important role of calcium carbonate in papermaking industry. It can ensure the strength and whiteness of paper, and the cost is low.
6. Heavy calcium powder for construction industry (dry mortar, concrete)
325 mesh of heavy calcium carbonate (heavy calcium powder) for dry powder mortar, whiteness requirement: 95%, calcium carbonate content: 98%, calcium carbonate plays an important role in concrete in the construction industry. It can not only reduce the production cost, but also increase the toughness and strength of products.
7. Heavy calcium powder for fireproof ceiling industry
600 mesh of heavy calcium carbonate (heavy calcium powder) for fireproof ceiling, whiteness requirement: 95%, calcium carbonate content: 98.5%. Calcium carbonate needs to be used in the production process of fireproof ceiling, which can improve the whiteness and brightness of the product, and the fireproof performance will also increase.
8. Heavy calcium powder for artificial marble industry
Heavy calcium carbonate (heavy calcium powder) for artificial marble has 325 mesh, whiteness requirement: 95%, calcium carbonate content: 98.5%, pure and free of impurities. Calcium carbonate has been widely used in the production of artificial marble at present.
9. Heavy calcium powder for floor tile industry
400 mesh of heavy calcium carbonate (heavy calcium powder) for floor tile, whiteness requirement: 95%, calcium carbonate content: 98.5%, pure and free of impurities. Calcium carbonate can be used in floor tile industry to increase product whiteness and tensile force, improve product toughness and reduce production cost.
10. Heavy calcium powder for feed industry
325 mesh of heavy calcium carbonate (heavy calcium powder) used in feed industry, whiteness requirement: 95%, calcium carbonate content: 99%, pure and free of impurities. Calcium carbonate can increase the calcium content in feed and improve feed quality.
In short, heavy calcium has the characteristics of low energy consumption, simple processing, easy mass production and some performance advantages. In many applications, it can replace or even surpass light calcium carbonate. Therefore, the demand and use of heavy calcium are much greater than light calcium.