EVA / POE Solar Film Extrusion Line
INTRODUCTION
To understand the application of EVA film in solar cells, it is necessary to first understand the structure of the cell. Generally, the cell structure consists of five layers of "glass + EVA + silicon solar cell + EVA + TPT/TPE" from top to bottom. Different structural layers play different functions and roles according to their material characteristics: tempered glass, whose function is to protect the main body of power generation (such as cells), its selection requirements are: high light transmittance (generally more than 91%), ultra-white tempered deal with. EVA film is used to bond and fix the tempered glass and the main body of power generation. The quality of the transparent EVA film directly affects the life of the module. The EVA film exposed to the air is easy to age and turn yellow, thus affecting the light transmittance and power generation of the module. Quality, in addition to the quality of EVA itself, the lamination process of component manufacturers is also very influential. For example, the cross-linking degree of EVA is not up to standard, and the bonding strength of EVA to tempered glass and backplane is not enough, which will cause EVA to age prematurely and affect the service life of components.
APPLICATION
EVA solar panel encapsulation: used for solar panel encapsulation. Non-sticky at room temperature, easy to handle. The curing and bonding reactions are produced by hot pressing, resulting in a permanent adhesive seal. EVA glass interlayer film: used for interior decorative glass interlayer. POE solar panel packaging: used for solar panel packaging.
FEATURES & ADVANTAGES
1. Excellent mixing and plasticizing effect of extruder
2. Eliminate thermal stress and solve the problem of thermal shrinkage
3. Unique design to solve the problem of sticky layer and peeling of adhesive film
TECHNICAL DATA
| Model No. | Die Width | Film Width | Film Weight | Line Speed |
| WS160/180-2650 | 2650mm | 2400mm | 0.3-1.0mm | 15m/min |
| WS180/180-3000 | 3000mm | 2750mm | 0.3-1.0mm | 15m/min |
| WS200/200-3000 | 3000mm | 2750mm | 0.3-1.0mm | 15m/min |
* Remarks: Machine dimensions can be customized upon request.

