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| No.8413136
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Information Name: | Supply cosmetic sunscreen anti-ultraviolet function rutile titanium dioxide |
Published: | 2013-01-22 |
Validity: | 90 |
Specifications: | No |
Quantity: | 1.00 |
Price Description: | |
Detailed Product Description: | The titania Introduction nano titanium dioxide, also known as nano titanium dioxide. From the size, usually yielding a physical chemical properties of the significant change in fine particle size less than 100 nm, and its appearance as a white loose powder. Anti-UV, anti-bacterial, self-clean, anti-aging effect, can be used for cosmetics, functional fibers, plastics, inks, coatings, paints, fine ceramics and other fields. Nano-titanium dioxide, the main two crystalline forms: anatase (Anatase) and rutile (Rutile). Rutile titanium dioxide than that of the anatase titanium dioxide stable and dense, with a higher hardness, density, dielectric constant, and refractive index, its hiding power and tinting strength are also higher. The anatase titanium dioxide in the reflectance of the visible short-wave part of the titanium dioxide than the rutile-type high, with blue hue, and the UV absorption of a lower capacity than the rutile-type, high photocatalytic activity than rutile. Under certain conditions, the anatase titanium dioxide can be converted to the rutile-type titanium dioxide. Nano titanium dioxide UV resistance mechanism: In accordance with the different wavelengths of ultraviolet divided into short wavelength region 190 ~ 280 nm, the Polish zone of 280 to 320 nm, the long wavelength region 320 to 400nm. Highest UV energy of the short wavelength region, but after from the ozone layer is blocked, so harm the human body is generally the medium wave zone and the longer wavelength ultraviolet. Strong UV resistance of nano-titanium dioxide is due to its high refractive index and high optical activity. UV resistance and its mechanism and its particle size about: when the particle size is large, the barrier is a reflection of UV scattering mainly Poland area and longer wavelength UV. Sunscreen mechanism is simple covered the case of a general physical sunscreen, sunscreen weak; as the particle size decreases, the light through the nano-particles of titanium dioxide surface, the reflection of the longer wavelength ultraviolet scattering is not obvious, while the The Polish area ultraviolet absorbent significantly enhanced. The mechanism of its sunscreen is to absorb ultraviolet light, the main absorption medium wave zone ultraviolet. Thus, nano-titanium dioxide is not the same for different wavelength UV sunscreen mechanism, longer wavelength UV barrier to scattering of the Polish District UV barrier to absorption. Nano titanium dioxide in different wavelength regions showed excellent absorption properties compared with other organic sunscreens, nano-titanium dioxide is non-toxic, stable performance, good effect and other characteristics. Nano-titanium dioxide due to the small particle size, activity, both reflection and scattering UV can also absorb ultraviolet stronger barrier against UV. It also transparent to visible light, adding to the use of cosmetics natural skin whiteness, unlike pigment grade TiO2 not transparent to visible light, causing users face appears unnaturally pale color. Using nano-TiO2 and the transparency and the ultraviolet absorption ability can be used as a food packaging film, ink, paint, textiles, and plastics fillers, can replace the organic ultraviolet absorber, aging ability resistant coating used in coatings can be improved. |
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Copyright © GuangDong ICP No. 10089450, Shandong positive element infrared nano anti-bacterial materials engineering Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 9320 visitor
Copyright © GuangDong ICP No. 10089450, Shandong positive element infrared nano anti-bacterial materials engineering Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility