Optimum particle size of titanium dioxide and zinc oxide for attenuation of ultraviolet radiation.

The Journal of Coatings Technology | October 1, 1990| | Copyright

Optimum Particle Size Of Titanium Dioxide and Zinc Oxide For Attenuation of Ultraviolet Radiation

The optimum size of particles used to protect polymers from ultraviolet radiation is calculated using a theoretical model for light scattering and absorption. Titanium dioxide and zinc oxide, two common ultraviolet-attenuating materials, are examined in this work.

The optimum size for spherical titanium dioxide particles is well-defined, and varies uniformly from 0.05 micrometer for 0.3-micrometer ultraviolet radiation to 0.12 micrometer for 0.4-micrometer ...

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