| abstract |
The invention discloses a preparation method of a low-cost radiation cooling film. The preparation method comprises the following steps: mixing polymer powder, ultraviolet reflective materials, fillers and auxiliary agents uniformly, and then extruding and casting to obtain an ultraviolet reflecting film; The film is subjected to vacuum aluminum plating to obtain a low-cost radiation cooling film. In the present invention, by means of solvent-free casting film and vacuum aluminum plating, the existing aluminized film process can be used to quickly produce a low-cost radiation cooling film, which has extremely high solar reflectivity and suitable thickness. At the same time, the aluminized film can provide extremely high visible light and near-infrared reflection function. The low-cost radiation cooling film prepared by the invention has extremely high efficiency, and has extremely high solar light reflectivity and hemispherical emissivity. The application of the low-cost radiation cooling film can achieve cooling effect and has a good application prospect. |