What Is Titanium Dioxide
May 15, 2025| Introduction of titanium dioxide
Titanium dioxide is a white pigment, UV barrier that improves resistance to aging, it also gives good resistance to water and heat. Titanium dioxide is mainly used in thermoplastics and in unsaturated polyesters.
Titanium dioxide is a white pigment, the first pigment produced in the world, most widely used for its brightness and very high refractive index in a very broad range of applications including paints, inks, plastics, paper, fibers, ceramics, food and cosmetics, but also such as water splitting, air purification self-cleaning, and bacterial degradation.
Initially applied as fine particles, titanium dioxide is now used as nanoparticles (NP) both in consumer products and in advanced technologies.
TiO2 nanoparticles are widely utilized and abundantly produced because of their high stability, biocompatibility, low cost and non-toxicity. They show anticorrosive, photovoltaic, photocatalytic and antibacterial properties. TiO2 exhibit those activities because it generates reactive oxygen species under UV light-but not under ambient light conditions. Such activities are firstly explained by the nanosize (small diameter and higher surface area make them more potent) and also by the predominant crystal form of titanium dioxide within the NPs, anatase rather than rutile (anatase structure is much more reactive than rutile). Rutile fine particles are even believed to be chemically inert.
Application of titanium dioxide
Titanium oxide is commonly used in pharmaceuticals, medicines and prosthetic implants. The medical field now also considers titanium dioxide nanoparticles for those properties due to ROS generation under UV light, for instance as antibacterial agents as when titanium ions are spread to an oxygen-rich surface, the formation of a titanium oxide thin film strongly decrease the viability of bacteria such as Staphylococcus aureus. The large applications come now to textile, where apatite-coated titanium dioxide (TiO2) proved to be efficient against four types of bacteria (S. aureus, Escherichia coli, methicillin-resistant S. aureus (MRSA), and Micrococcus luteus). Indeed, apatite-coated TiO2 can be fixed on cotton textiles by dip-coat technique, and the antimicrobial properties of corresponding fabrics showed to be more efficient under UV light. Novel treatments against some forms of nondermatologic diseases can be also cited, for advanced medicinal imaging and nanotherapeutics.
Titanium dioxide (TiO2). Titanium dioxide is the most common white pigment used today. As a pigment, titanium dioxide is unique because it combines both high colouring and high opacifying capacity. This is mainly due to its high refractive index. Furthermore, titanium dioxide is an excellent UV absorber (it is used in sun protective creams). Some typical properties are: density 3.3-4.25 g/cm3; pH of water suspension 3.5-10.5; particle size 8–300 nm; oil absorption 10–45 g/100 g; specific surface area 7–160 m2/g. Most titanium dioxide is produced from the rutile (TiO2) or ilmenite (titanate of ferrous iron). Titanium dioxide can be obtained using different processes.
Titanium dioxide (TiO2), or titanium white, is a common additive to acrylic and other paints, which adds whiteness and reflective properties and helps to stabilize these chemically. In many ways, titanium dioxide is a replacement for lead in paints. It is also found in many other products from food, medicine, and toothpastes, to plastics, papers, and inks.
About us
Luoyang Dema Import & Export Co., Ltd. aims to provide high-quality, cost-effective products for global factories, plastic product manufacturers, and material distributors. Luoyang Dema Import & Export Co., Ltd. provides THEbest PP, PE, PVC, AVE, ABS material solutions for plastic product manufacturers, wholesalers, distributors, distributors, factory owners, processing workshops, etc.
If you are looking for general plastic materials, please feel free to get the latest prices and quotations from Luoyang Dema Import & Export Co., Ltd. The sales team will reply within 48 hours.