The effect of rutile titanium dioxide on the performance of powder coatings
Release time:
2022-06-14
As the requirements for environmental protection and green production become increasingly strict, the lifespan of various durable products will be greatly extended. Powder coatings, as a protective layer for various substrates and to enhance the aging performance of powder coatings, are receiving more and more attention. The important components of the coating.Rutile Titanium Dioxide PowderDue to the lattice defects of titanium dioxide, it is reduced to unstable titanium trioxide under the action of sunlight, especially ultraviolet light and catalysts such as water. At the same time, oxygen in its nascent state is released. This oxygen oxidizes the organic matter that serves as the base for the paint, leading to the breaking and degradation of polymer chains, transforming it into a soluble or volatile substance, which disrupts the continuity of the paint film and has a significant impact on aging performance.
Introduction to Rutile Titanium Dioxide Powder: Titanium dioxide is a polycrystalline compound. In nature, there are mainly three types of titanium dioxide powder: rutile type, anatase type, and flaky type. Among them, the crystal form of flaky titanium dioxide is unstable, so the market mainly has the other two crystal forms. The single crystal of anatase is composed of four carbon dioxide molecules, has a large lattice, loose bonding, and the crystals are oriented in a similar flaky structure to mica, thus having poor lattice stability, low contrast, and low crystal hardness. The single crystal of rutile titanium dioxide is composed of two TiO2 molecules, has a relatively small lattice, tight bonding, and no directional arrangement in the lattice, which is spatially divergent. The combination of polycrystals forms a dense spatial network structure, thus having higher density and hardness in terms of lattice stability. Rutile titanium dioxide crystals are elongated and prismatic, usually existing in the form of perovskite, while anatase titanium dioxide powder is mostly in the form of nearly regular octahedra. Their X-ray diffraction characteristic peaks are also different. The diffraction angle of anatase titanium dioxide powder is 25.3°, while that of rutile titanium dioxide powder is 27.4°.
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Key words: tengxian titanium dioxide, titanium dioxide, rutile, titanium dioxide manufacturers, anatase titanium dioxide, titanium dioxide manufacturers, anatase titanium dioxide, rutile titanium white
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Address: Teng County, Guangxi Chemical Industry Zone