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Nanometer zinc oxide is an important sunscreen material, its particles are very small, can effectively absorb and scatter ultraviolet rays, play a good role in sunscreen. Compared with traditional sunscreens, nano-zinc oxide sunscreens have better stability and durability, so they are widely welcomed. The action principle of nanometer zinc oxide sunscreen raw material is mainly based on its unique crystal structure and optical properties. When the nano-zinc oxide absorbs ultraviolet light, the electrons inside it are excited to the conduction band, forming free electrons and holes. These free electrons and holes can be combined with photogenerated electrons and holes, thereby reducing the number of photogenerated electrons and holes and playing a role in inhibiting photochemical reactions. さらに, the scattering effect of nano-zinc oxide can also effectively reduce the damage of ultraviolet light to the skin.
There are many ways to prepare nanometer zinc oxide sunscreen raw materials, including physical method, chemical method, physical-chemical combination method, 等. In the preparation process
It is necessary to control the size, 形態学, purity and other factors of the particles to ensure the quality and stability of the product. Nanometer zinc oxide sunscreen raw materials are widely used, in addition to sunscreen, mask, emulsion and other cosmetics, can also be used in textiles, プラスチックス, coatings and other fields. 例えば, in the field of textiles, nano-zinc oxide can be added to fibers to prepare textiles with ultraviolet protection; In the field of coating, nano-zinc oxide can be added to the coating to improve the anti-aging and weatherability of the coating.
In short, nanometer zinc oxide sunscreen material as a new type of sunscreen material, has a good application prospect and development potential. With the increasing demand for sunscreen and the continuous improvement of product quality requirements, it is believed that the application of nano-zinc oxide sunscreen raw materials will be more and more extensive.
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