Co-extruded encapsulation film
Three-layer co-extrusion film（D5008-EO）
characteristic
Three-layer co-extrusion, combined with the characteristics of EVA and polyolefin, the EVA in the upper and lower layers can reduce the slippage of the pure polyolefin film, and the middle polyolefin layer ensures water permeability and high volume resistance.
material and structure
Two-layer co-extrusion film（D5008-EB）
characteristic
Double-layer co-extrusion, the EVA layer is in contact with the cell, which reduces the hardness of the pre-crosslinked white EVA film, reduces the stress on the cell during lamination, and effectively reduces cracks.
material and structure
project | unit | Technical indicators | |
D5008-EO | D5008-EB | ||
Technical indicators | g/10min | 5-30 | 5-30 |
melting point | ℃ | 68 | 65 |
Shrinkage 120℃,3min | MD % | ≤3 | ≤3 |
TD % | ≤1.5 | ≤1.5 | |
Transmittance（320nm~1200nm） | % | ≥90 | ≤10 |
degree of cross-linking 140～145℃,16min | % | 75～90 | 75～90 |
Peel strength of film and glass | N/cm | ≥60 | ≥60 |
Peel strength of film and TPT | N/cm | ≥60 | ≥60 |
Volume resistivity | Ω*cm | ≥1.0*1015 | ≥5.0*1014 |
UV aging resistance UV,120kw*h ΔYI | — | ≤5 | ≤5 |
Moisture and heat aging resistance “pair85”,1000h ΔYI | — | ≤2 | ≤2 |
Anti-PID performance “pair85”,-1000V，192h | % | componentsΔpmax ≤5 | componentsΔpmax ≤5 |
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