TPT solar cell backsheet

1.inport the raw material from Japan
2.double side with fluorine,double protection
3.with strong PET film
Solar Cell Encapsulant TPT
1)UV resistance,Moisture barrier
2)Weatherability,Durability +25year
3)Electrical insulation
4)Inertness toward a wide variety of chemicals, solvents, and staining agents
5)Excellent adhesion to EVA, Waterproof
2.SOLAR BACKSHEET TECHNICAL DATA:

Item
Unit
Test method
Desired Value
1.film structure


PVDF/PET/PVDF
PET thickness
μm
GB/T13541-92
250
FEVE thickness
μm
GB/T13541-92
30
Film thickness
μm
GB/T13541-92
310
2.peel strength
N/cm
ASTM D-1876 180 ° Peel
≥ 6.5
EVA/ backsheet normal
N/cm
ASTM D-1876 180 ° Peel
≥ 40
EVA/ backhsheet after double 85 treatment
N/cm
ASTM D-1876 180 ° Peel
≥ 40
EVA/backsheet after UV treadment
N/cm
ASTM D-1876 180 ° Peel
≥ 40
PET/FEVE normal
N/cm
ASTM D-1876 180 ° Peel
≥ 6
PET/FEVE boiling water 24h
N/cm
ASTM D-1876 180 ° Peel
≥ 6
PET/ FEVE after double 85 treatment
N/cm
ASTM D-1876 180 ° Peel
≥ 5
PET/FP after thermal cyling test
N/cm
ASTM D-1876 180 ° Peel
≥ 5
PET/FP after Moisture frozen
N/cm
ASTM D-1876 180 ° Peel
≥ 5
PET/FP UV treatment
N/cm
ASTM D-1876 180 ° Peel
≥ 5
3,thermal shrinking rate MD/TD
%
ASTM D-1204 , 150 °C /30min
≤ 1
4,thermal weight—lost rate
%
GB/T13541-92
≤ 0.25
5,water vapor transmittances
gm/m2.day
ASTM F-1249 , 38 °C /100%RH
≤ 3.0
6,breakdown voltage
KV
ASTM D-149
≥ 18
7,partial discharge
VDC
IEC60664-1
≥ 1100
8,yellowness index( UV 1000h )
-
ASTM E313-05
b ≤ 2
9,tensile strength
MPa
ASTM D-882
≥ 40
10.(QUVB,4000H)
/
GB/T 16422.3-1997
4 LEVEL
11.service life
years

25
Technical data