1. The difference between the application fields of anatase titanium dioxide and rutile titanium dioxide:
01 Plate titanium is an unstable crystal form with no industrial application value. Anatase titanium dioxide (Anatase) is referred to as type A, and rutile titanium dioxide (Rutile) is referred to as type R. Both have stable crystal lattices and are important Compared with other white pigments, white pigments and porcelain glazes have superior whiteness, tinting strength, hiding power, weather resistance, heat resistance, and chemical stability, especially non-toxic.
02 Anatase titanium dioxide, that is, A-type titanium dioxide. It is an excellent white powder pigment with good light scattering ability, so it has good whiteness, strong hiding power, high chemical stability, non-toxic and tasteless, and no stimulation to human body. It is widely used in many industrial fields , such as coatings, plastics, paper and inks.
03 Rutile titanium dioxide, that is, R-type titanium dioxide. Combined with experience in quality control of sulfuric acid process rutile titanium dioxide production, innovative research on inorganic coating, organic treatment, salt treatment, calcination control, hydrolysis and product application, etc., advanced hue and particle size control, zirconium silicon aluminum phosphorus A new generation of high-grade general-purpose (partially watery) rutile titanium dioxide developed by multi-component inorganic coating and new organic treatment technology. It is suitable for various architectural coatings, industrial paints, anti-corrosion paints, inks, powder coatings and other industries.
2. The difference between the chemical properties of anatase titanium dioxide and rutile titanium dioxide:
01 The difference between the two is mainly the degree of distortion of the octahedron and the way it is connected to each other. The difference in the unit cell structure of rutile and anatase also leads to the difference in the physical and chemical properties of the two crystal forms.
02 From a thermodynamic point of view, rutile is the relatively most stable crystal form, with a melting point of 1870°C; while anatase is a low-temperature phase of titanium dioxide, which generally transforms into rutile at 500°C~600°C. The essence of the crystal form transformation of titanium dioxide is the structural rearrangement of the unit cell structure octahedron. The atomic arrangement in the rutile crystal structure is denser, the density, hardness, and dielectric constant are higher, and the scattering of light is also greater. Therefore, rutile is a commonly used white paint and anti-ultraviolet material, which has a very strong shielding effect on ultraviolet rays and is widely used in industrial paints and cosmetics.
03 The bandgap width of anatase is slightly larger than that of rutile, photogenerated electrons and holes are not easy to recombine on the surface, so it has higher photocatalytic activity and can directly use ultraviolet light in sunlight for photocatalytic degradation without causing Secondary pollution. Therefore, anatase is a commonly used photocatalytic material to deal with environmental pollution problems.
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