
Yellow tungsten oxide nano powder may be added to the production of polyethylene agricultural film to obtain heat insulation agricultural film with excellent ultraviolet blocking effect. This is because the yellow tungsten oxide nanoparticles are dispersed inside the agricultural film to block the UV. In addition, such new heat insulation film can form an infrared light absorbing layer, so that the agricultural film has good infrared blocking effect. Infrared is the source of heat, so this new type of agricultural…