Fast cure EVA solar cell adhesive film

Abstract

The invention relates to a fast cure EVA solar cell adhesive film, and overcomes the technical defects of unreasonable compatibility, slow crosslinking speed and the like in the prior art. The EVA solar cell adhesive film comprises the following matters in parts by weight: 100 parts of ethylene-vinyl acetate, 0.5-3 parts of silane coupling agent, 1-3 parts of peroxide cross-linking agent, 0.1-0.5 part of anti-oxidant, 0.1-0.5 part of heat stabilizer and 0.05-0.2 part of hindered amine light stabilizer, wherein the peroxide cross-linking agent comprises peroxide-2-ethyl hexanoic acid tert-butyl crosslinker. Compared with the prior art, the fast cure EVA solar cell adhesive film has the advantages that the temperature for lamination is lower, the lamination time is shortened and the crosslinking degree is not lowered; and fast curing can be realized, the production efficiency is effectively improved and the production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of solar cell adhesive films, in particular to a fast-curing EVA solar cell adhesive film. Background technique [0002] If the solar cell is directly exposed to the air, its photoelectric conversion efficiency will drop quickly and lose its practical value. Therefore, the research and development of packaging materials for solar cells is very important. In order to achieve the purpose of isolation from the outside world, the solar cells are encapsulated with transparent, light-resistant, good adhesive performance, and can withstand atmospheric changes. The protective materials are bonded together to make up the solar cell module. [0003] EVA resin is a thermoplastic polymer material, which is a polymer with a linear molecular structure. Its heat resistance is poor, it is easy to extend and has low elasticity, and its creep resistance is poor, and it is easy to cause thermal expansion and contraction, wh...

AI Technical Summary

Problems solved by technology

[0004] But, existing EVA solar adhesive film still generally has following shortcoming: 1, EVA solar adhesive film needs higher lamination temperature in solar module lamination process, and energy consumption is big, and lamination process is long

2. It takes a long time for solar module lamination. Once the lamination time is reduced, the crosslinking degree of EVA solar film will be greatly reduced, the processing efficiency is low, and the production cost is high.