Solar cell backboard with high flame retardance

Abstract

The invention relates to a solar cell backboard with high flame retardance. The backboard comprises a PET substrate, wherein a weather-resistant layer is adhered to one side of the PET substrate sequentially through a fluorinated film layer and an adhesive layer, and a weather-resistant layer is adhered to the other side of the PET substrate sequentially through a fluorinated film layer and an adhesive layer; the fluorinated film layer is formed by a nylon layer, a first adhesive, an aluminum foil, a second adhesive and a thermal sealing film. According to the solar cell backboard, the weather-resistant layer is a fluorinated weather-resistant layer, and has low cost and good environment-friendly performance; the chemical performance and adhesive strength of the solar cell backboard are better than those of a traditional backboard, the backboard structure can be stable, and the effect for supporting and protecting the whole solar cell backboard is remarkable. The solar cell backboard has excellent flame retardance, excellent mechanical performance and excellent insulation performance, can be used for effectively avoiding the phenomenon that the backboard film is burnt since the surface of a solar cell backboard absorbs excessive heat, and is applicable to high temperature environment.

Description

technical field [0001] The invention relates to the field of solar battery back plates, in particular to a solar battery back plate with high flame retardancy. Background technique [0002] Solar energy, as a green and inexhaustible energy source, is undoubtedly the best choice to replace traditional thermal power generation. Since solar cells need to be exposed to the outdoors for a long time, the cells in photovoltaic modules need to be protected to prevent atmospheric pollution. The impact and overlooking of environmental factors such as water vapor, oxygen, and ultraviolet rays. The solar backsheet is one of the accessories of the whole solar cell. It mainly plays the role of mechanical support and protection of the cell from the penetration of environmental factors. At present, the performance of the solar backsheet with the existing structure is unstable, and the reflectivity, anti-aging performance, and water resistance performance Poor, the complex structure leads t...

AI Technical Summary

Problems solved by technology

The solar backsheet is one of the accessories of the whole solar cell. It mainly plays the role of mechanical support and protection of the cell from the penetration of environmental factors. At present, the performance of the solar backsheet with the existing structure is unstable, and the reflectivity, anti-aging performance, and water resistance performance Poor, the complex structure leads to complicated processing and increased production costs. In addition, the flame retardancy of existing solar backplanes needs to be improved. Long-term practical use in high-temperature environments will easily cause some organic materials to burn

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