EVA film

EVA film has high light transmission, so that more light into the battery, improve the photoelectric conversion efficiency. And it has good adhesion, the glass, the battery and the backplane are firmly bonded together, and will not age and yellow when used outdoors for a long time.

Description

Item Test method Unit Data
Density 1S01183 g/cm3 0.95
VA content TGA % 26-33
Softening point DSC 55
Surace hardness GB/T531-1999 Shore A 65
Tensile strenghth (after crosslinking) IS0527-3 MPa 20
Elongation (after crosslinking) % 600
Strenghth of Extension MPa 6
UV cutoff wavelength UV-vis Nm 360
Optical transmission GB2410-80 % 91
Refractive index 1SO489 1.482
Theral shrinkage
(0.45MM: pre-crosslinking test, 120℃,3min )
Q/ZX001-2012 MD% ≤3.0
TD% ≤1.0
Cross-linking rate (140℃,17min) Q/ZX001-2012 Gel% ≥75.0
Peeling strength With Glass Q/ZX001-2012 N/cm >60
With TPT N/cm >40
Damp Heat
resistance(90℃,90%RH,
1500hrs)
Yellowness index Q/ZX001-2012 △YI <3
Peeling strenghth
with glass
N/cm >40
Volume resistance GB/T 1410 Ω·cm ≥1*1015
Dielectric strength GB/T1408.1 Kv/mm >28
PlD resistance test
(85℃,85%RH.-1000V.96H)
IEC61730-2:2004
IEC61215:2005
Power loss % <5%