JFPF Solar Cell Encapsulation Back-sheet is high performance protective layer compounded by Fluon ETFE film, moisture resistance PET and EVA. ETFE film is four-fluorine fluoroplastic which has outstanding resistance to weather and ageing, erosion resistance, moisture permeation resistance and excellent self-cleaning function, the perfect complex sheet plays an important function to EVA and solar cell silicon chip against medium such as water, oxygen and corrosive gas and liquid(such as: acid rain)
High Weather Resistance 1000 hours Damp Heat Test 85% 85℃, no discolor, no plunger separation. JFPF have obtained the TUV certificate which can be used for more than 25 years.
Good Moisture Barrier Properties Moisture-vapor transmission ≤1.0g/m2d
Good Insulating Strength Breakdown voltage≥28kv/mm, Max system voltage≥1140VDC
High Cohesive Strength Adhesive Strength to EVA≥40N/10mm
JFPF Technical Data
|
Test Item |
Unit |
Data |
Data |
Test Method |
|
Color |
|
White |
White |
|
|
Thickness |
mm |
0.20±5% |
0.35±5% |
GB/T13541 |
|
Tensile Strength |
Mpa |
120 |
150 |
GB/T13541 |
|
Elongation at break |
% |
90 |
80 |
GB/T13541 |
|
shrinkage |
% |
1 |
1 |
GB/T13541 |
|
Continuous use temp |
℃ |
-40-150 |
-40-150 |
GB/T13541 |
|
EVA Adhesive Strength |
N/10mm |
40 |
40 |
GB/T1408.1 |
|
Permeability of water vapour |
g/m2d |
Appro×1.5 |
Appro×1.0 |
GB/T13541 |
|
Breakdown voltage |
KV |
19 |
28 |
GB/T1408.1 |
|
Max system voltage |
VDC |
705 |
1140 |
GB/T13541 |
|
Surface resistivity |
Ω |
6.9×1015 |
6.9×1015 |
GB/T1410 |
|
Electric strength |
MV/m |
95 |
95 |
GB/T13541 |
Size & Grade
|
Grade |
Thickness（mm） |
Width（m） |
M/Roll |
|
JFPF(white/black） |
0.20±5% |
0.5--1.00 |
100 |
|
JFPF(white/black） |
0.35±5% |
0.5--1.00 |
100 |