Among the carbonates, calcium carbonate, with a worldwide market share of approximately 70%, plays the dominant role. How is calcium carbonate used in everyday life ?
Calcium Carbonate Applications in Plastics Industry ?
Calcium carbonate is a chemical compound with the formula CaCO3. It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone, which is a type of sedimentary rock consisting mainly of calcite) and is the main component of eggs, snail shells, seashells and pearls. Calcium carbonate is the active ingredient in agricultural lime and is created when calcium ions in hard water react with carbonate ions to create limescale. It has medical use as a calcium supplement or as an antacid, but excessive consumption can be hazardous and cause poor digestion
+ Calcium Carbonate Powder (CaCO3): white powder, very fine, processed from natural calcium carbonate with chemical composition CaCO3 : 97.25%; SiO2: 0.12%: Al2O3: 0.04%; MgCO3: 2.12%; Fe2O3: 0.03% .
Calcium carbonate is critical to the construction industry, both as a building material in its own right (e.g. marble), and as an ingredient of cement. It contributes to the making of mortar used in bonding bricks, concrete blocks, stones, roofing shingles, rubber compounds, and tiles. Calcium carbonate decomposes to form carbon dioxide and lime, an important material in making steel, glass, and paper. Because of its antacid properties, calcium carbonate is used in industrial settings to neutralize acidic conditions in both soil and water.
Calcium carbonate is the most widely used mineral in the paper, plastics, paints and coatings industries both as a filler – and due to its special white color – as a coating pigment. In the paper industry it is valued worldwide for its high brightness and light scattering characteristics, and is used as an inexpensive filler to make bright opaque paper. Filler is used at the wet-end of paper making machines, and calcium carbonate filler allows for the paper to be bright and smooth. As an extender, calcium carbonate can represent as much as 30% by weight in paints. Calcium carbonate also is used widely as a filler in adhesives, and sealants.
Choosing the right type of calcium carbonate (top cut control), the customer can achieve cost-effective results by allowing higher calcium carbonate fillings without affecting the manufacturing process as well as with the final product. Carbonate is used to control viscosity, heat expansion coefficient, product shrinkage.
In the agricultural sector, mineral diversity is important. Calcium carbonate is considered as an additive in the production of pesticides and poultry food. Natural calcium carbonate products are suitable and friendly with the environment .
Calcium carbonate is used widely as an effective dietary calcium supplement, antacid, phosphate binder, or base material for medicinal tablets. It also is found on many grocery store shelves in products such as baking powder, toothpaste, dry-mix dessert mixes, dough, and wine. Calcium carbonate is the active ingredient in agricultural lime, and is used in animal feed. Calcium carbonate also benefits the environment through water and waste treatment.
Calcium carbonate forms a kind of internal frame structure in plastic products, and greatly improves the dimensional stability of plastic products. It can improve the product hardness, electrical efficiency, flame retardant performance, heat resistance and treatment performance.
Calcium carbonate also helps to improve the gloss and evenness of the product surface. Adding calcium carbonate can increase the heat resistance of conventional plastic products. And since it has a whiteness exceeding 90%, calcium carbonate can be used as a whitening agent in place of expensive white pigments .
Calcium carbonate is widely used when combined with polyethylene resins to manufacture bags, packaging, shopping bags, bags, clothes bags, garbage bags .. Using calcium carbonate increases product durability, better dispersion in plastic chemicals, optimal product gloss, and improved production process .
Calcium carbonate is widely used in combination with Polypropylene to produce pp Woven bag , Tons of bags , non-woven fabrics, canvas, agricultural coatings, etc..
Calcium carbonate is widely used when combined with polypropylene with high MI to produce injection molding of plastic products such as Sheets, hollow boards, household items, home appliances accessories ..
Using calcium carbonate increases chemical properties and improves production productivity. Calcium carbonate reduces production costs, increases hardness, and increases the durability of fillers for products .
Calcium carbonate appears almost worldwide, many natural or man-made works are made of limestone such as Limestone Crossing in the Torcal de Antequera nature reserve of Málaga, Spain, Giza Pyramid, One of the Seven Wonders of the Ancient World, whose outer shell is made of limestone, Cut limestone rocks at a quarry in Gozo, Malta, Limestone Gate at Piatra Craiului Mountains, Romania .
However, the exploitation of calcium carbonate used for plastic industry applications in life is mainly located in China, Vietnam, Malaysia, and Taiwan. ..
According to statistics on the quality of limestone quarries, white ratio, Vietnam is at the forefront in the technology of exploiting calcium carbonate and producing for plastic industry applications .
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