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Ground calcium carbonate is an important inorganic filler and functional additive, with the chemical formula CaCO₃. It is mainly sourced from natural minerals such as limestone and marble, obtained through physical crushing and classification processes. It has a high density and low specific surface area, a wide particle size distribution, high purity, a bright white color, as well as good chemical stability and thermal stability.
Baryte is a natural mineral primarily composed of barium sulfate (BaSO₄), known for its high density, stability, and heat resistance. In industry, especially in the automotive parts manufacturing sector, baryte is widely used as a filler in brake pads.
Needle-like wollastonite powder is a silicate mineral with a unique morphology, typically represented by the chemical formula Ca[SiO₃(OH)], theoretically composed of calcium and silicate chains. This mineral appears in needle-like or fibrous forms and possesses excellent physical and chemical properties, making it widely used in various industrial fields.
Feldspar powder (Potassium Feldspar) is a common rock-forming mineral, belonging to the feldspar group of minerals, with a chemical formula typically represented as K[AlSi3O8]. Depending on the impurities contained, there are various varieties such as orthoclase, microcline, and anorthite. Feldspar powder is named for its high potassium (K2O) content and usually appears in various colors such as white, light yellow, and flesh pink, possessing good melting properties and a high melting point.
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