Blue nano tungsten oxide may be used to prepare thermal absorption agricultural plastic film, which is environmentally friendly, non-toxic and transparent with high visible light transmittance and thermal absorption performance. So, such thin film can be applied to agricultural greenhouses.
We all know that the solar radiation spectrum has a very important influence on plant growth. The distribution of solar radiation spectrum can be divided into ultraviolet light region, visible light region and infrared light region. The wavelength of the ultraviolet light region is less than 400nm, the wavelength of the visible light region is between 400~760nm, and the wavelength of the infrared light region is greater than 760nm.
While the thermal absorption film adding with nano grain size blue tungsten oxide powder has a blocking ratio of 78% or more of infrared rays in a wavelength range of 780nm-2400nm, a blocking ratio of 56% of 380nm ultraviolet rays, and a transmittance of 90% or more of visible light. That is to say, this heat absorbing film will make the vegetables in the shed get enough sunlight to facilitate growth. In addition, the film has good tensile force, so that it is less prone to damage. And therefore, it has a longer service life than the general agricultural film.
More details, please visit:
http://www.tungsten-powder.com/Blue-Tungsten-Oxide.html
