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Main Properties and Applications of Heavy Calcium Carbonate
Release time:
2024-09-20
Heavy calcium carbonate, often referred to as heavy calcium, is a powdered inorganic filler produced by mechanically grinding natural carbonate minerals such as calcite, marble, and limestone. It possesses the following key characteristics and applications:
Heavy calcium carbonate, often referred to as heavy calcium, is a powdered inorganic filler produced by mechanically grinding natural carbonate minerals such as calcite, marble, and limestone. It possesses the following key characteristics and applications:
Characteristics
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High chemical purity : Heavy calcium carbonate has high chemical purity, is highly inert, and does not readily undergo chemical reactions.
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Good thermal stability : It does not decompose below 400°C and exhibits excellent thermal stability.
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Excellent physical properties : High whiteness, low oil absorption, low refractive index, soft texture, quick-drying, no water of crystallization, low hardness, and low abrasion value.
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Eco-friendly and non-toxic : Non-toxic, odorless, and tasteless, meeting environmental protection requirements.
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Good dispersibility : Due to its large particle size, smooth surface, and small specific surface area, it exhibits good dispersibility.
Uses
Heavy calcium carbonate, owing to its excellent properties, is widely used in numerous fields:
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Rubber Industry As a filler, it can increase the volume of rubber, improve its processability, provide partial or full reinforcement, and adjust its hardness. At the same time, it helps conserve expensive natural rubber and reduce production costs.
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Plastics Industry : It serves as a reinforcing framework in plastic products, enhancing dimensional stability, hardness, and surface gloss.
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Coatings and Paints Industry : Imparts non-settling, easy dispersibility, and excellent gloss to coatings and paints. It is used in relatively large amounts in waterborne coatings, where it enhances coating performance.
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Paper-making industry : In the paper-making process, heavy calcium carbonate can ensure paper strength and brightness while keeping costs low.
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Building materials : In the construction industry, heavy calcium carbonate plays a crucial role in the production of concrete, fire-resistant ceiling panels, floor tiles, and artificial marble, among other products. It not only helps reduce production costs but also enhances the toughness and strength of these materials.
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Other fields It is also used in the feed industry as a calcium supplement, in the fertilizer industry for granule formation and color adjustment, and in coal-fired power plants for flue-gas desulfurization, among other applications.
In summary, heavy calcium carbonate, as an important inorganic filler, plays an irreplaceable role in numerous fields. With continuous technological advancements and expanding market demand, its application prospects are poised to grow even more robustly.
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