Aging-resistant abrasion-resistant coating for back plate of solar battery and preparation method of aging-resistant abrasion-resistant coating

Abstract

The invention discloses an aging-resistant abrasion-resistant coating for a back plate of a solar battery and a preparation method of the aging-resistant abrasion-resistant coating. The aging-resistant abrasion-resistant coating comprises the following raw materials in part by weight: 40-80 parts of a tetrafluoroethylene-hexafluoropropylene copolymer, 30-60 parts of a fluororesin, 15-40 parts of amethyl acrylate-ethyl methacrylate copolymer, 10-30 parts of chlorosulfonated polyethylene, 30-60 parts of butyl acetate, 5-10 parts of gas-phase titanium dioxide, 2-10 parts of hydroxypropyl cellulose, 3-15 parts of acetylated tributyl citrate, 5-12 parts of ammonium polyphosphate, 30-60 parts of ferric ferrocyanide, 10-20 parts of tricaprylyl citrate and 60-90 parts of an adhesive coupling agent. Tests show that the abrasion resistance of the coating material disclosed by the invention meets an excellent grade, 1000 hours of artificial weather aging tests show that the abrasion resistance of the coating is barely changed, and meanwhile the coating is excellent in mechanical property, flame retardancy and the like.

Description

technical field [0001] The invention relates to the technical field of solar photovoltaic materials, in particular to an aging-resistant and abrasion-resistant coating for a solar battery backplane and a preparation method thereof. Background technique [0002] At present, the new energy available to mankind mainly includes solar energy, geothermal energy, wind energy, ocean energy and nuclear energy. Ocean energy and geothermal energy are only available in certain places. Compared with other energy sources, solar energy has the advantages of abundant resources, the most direct energy conversion, the cleanest and environmental protection, and zero emission. Energy, so photovoltaic power generation technology has been rapidly developed and widely used. [0003] The backsheet of a solar cell is an integral part of a photovoltaic module. The backsheet is the protective material on the back of the solar cell, used to support and fix the solar cell, and has the ability to conti...

AI Technical Summary

Problems solved by technology

Because solar energy must be placed in harsh outdoor environments for a long time, there are certain safety hazards in its use. For example, when outdoor solar cell modules are used to generate electricity under strong sunlight, some photovoltaic components may be damaged due to branches, leaves, gravel, strong wind erosion, etc. Abrasion on the surface of the module, coupled with the addition of long-term harsh environmental factors, can easily lead to the aging of photovoltaic module components, especially the supporting backplane components. The mechanical properties of aging modules are seriously affected, which in turn affects the photoelectric conversion efficiency of photovoltaic modules