Nano Titanium Dioxide Dispersion Anatase CAS 13463-67-7, Photocatalytic TiO2 for Air Purification & Self-Cleaning Surface
This rutile‑phase nano titanium dioxide dispersion is a stable liquid slurry of surface‑modified rutile TiO₂ nanoparticles. The surface coating treatment suppresses photocatalytic activity of rutile titania while retaining outstanding ultraviolet‑shielding capability against both UVA and UVB bands. It can be incorporated into water‑based coating systems, used for preparing plastic masterbatches, and applied in cosmetic sunscreen products. It effectively slows down UV‑triggered degradation, chalk
Product DetailsThe dispersion consists of surface‑coated rutile‑crystal titanium dioxide nanoparticles suspended in an aqueous carrier medium. The inorganic or organic surface passivation layer is critical: it restrains the intrinsic photocatalytic property of nano‑TiO₂, preventing catalytic oxidation of surrounding polymer or cosmetic organic components. Well‑dispersed nanoparticles avoid severe agglomeration and sedimentation during storage.
For coating applications: when blended into water‑based exterior coatings, wood coatings and architectural topcoats, the rutile nano‑TiO₂ particles distribute uniformly within the coating film after curing. The nanoparticles absorb and scatter incoming ultraviolet radiation. This reduces UV penetration to the underlying substrate, delaying chalking, colour fading and ageing of coated surfaces, and extending the service lifespan of exterior coating systems.
For plastic applications: this dispersion can be further processed into masterbatch for polyolefin, polyester and engineering plastics. After compounding into plastic matrix, the nano rutile TiO₂ creates persistent UV‑shielding performance, slowing polymer chain degradation caused by long‑term ultraviolet exposure, which improves weather‑resistance of outdoor plastic components and thin films.
For sunscreen cosmetic applications: the surface‑modified rutile nanoparticles act as physical UV filters. They scatter and absorb UVA and UVB radiation without relying on organic sunscreen chemicals. Fine particle size helps to minimize visible white cast on skin surface, making it suitable for cosmetic sunscreen formulation.
Formulation compatibility testing is mandatory prior to formal production. Strong electrolytes, extreme pH values and certain ionic thickeners may break the dispersion stability and induce particle flocculation and sedimentation. Over‑dosage will raise system viscosity, cause poor levelling in coatings, increase white haze in plastic products, and lead to heavy whitening effect in sunscreen formulations. Insufficient addition cannot achieve the target UV‑shielding efficiency.
High‑intensity prolonged high‑speed shearing during mixing should be avoided. Excessive shear may damage the surface passivation coating of rutile nanoparticles, releasing the inherent photocatalytic activity and triggering undesirable oxidation or discoloration inside finished formulations.
Recommended dosage ranges: 1.5‑8 wt% for weather‑resistant functional coatings; 2‑10 wt% for plastic masterbatch compounding; 5‑20 wt% for cosmetic sunscreen slurry systems. Pre‑production laboratory evaluation must cover storage stability, particle agglomeration tendency, UV‑shielding efficiency, film weathering resistance, cosmetic skin‑related compatibility and colour development.
Store the rutile nano titanium dioxide dispersion in tightly sealed plastic containers within cool, dry and ventilated warehouse. Protect from direct strong sunlight and freezing temperatures. Gentle stirring is recommended for long‑standing batches before use. Reseal the container immediately after sampling to avoid contamination and solvent evaporation.
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Nano Titanium Dioxide Dispersion Anatase CAS 13463-67-7, Photocatalytic TiO2 for Air Purification & Self-Cleaning Surface
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