YS-S Solar EVA Film

Product Details

EVA films are a key material used for traditional solar panel lamination.
In the solar industry, the most common encapsulation is with cross-linkable ethylene vinyl acetate (EVA). With the help of a lamination machine, the cells are laminated between films of EVA in a vacuum, which is under compression. This procedure is conducted under temperatures of up to 150°C. One of the disadvantages of EVA films is that it is not UV-resistant and therefore protective front glass is required for the UV screening.

Property of YS-S solar EVA film

EVA DELAMINATION REASONS

1.The degree of cross-linking is unqualified. (such as low temperature of the laminator, short lamination time etc)

2.There are some other objects on the surface of raw materials(EVA,glass,back panel)

3.The uneven composition of EVA raw materials(such as ethylene and vinyl acetate)can’t be dissolved at normal temperature and cause delamination.

4.The amount of flux is too much,and the delamination of the extended busbar will occur when exposed to high temperature for a long time.