PV Backsheet PP-350
Back Film of SFC is manufactured to give a variety of designs from Thermoplastic and Fluor polymer, as a backing sheet for photovoltaic Solar Module due to its excellent strength, weather resistance, UV resistance and moisture barrier properties.
PP-350, The "TPT" is a multi-layered back film based on two layers of excellent durability fluoropolymer PVF film and one layer of high voltage insulation polyester film. Excellent durability fluoropolymer PVF films also provides good adhesion to EVA. The structure of "PP-350" has been designed to provide the best performance of properties in terms of superior UV resistance, moisture barrier, electrical insulation and weatherability.
PP-350 "TPT" Composition
|
Total Thickness
|
μm
|
350
|
 |
|
Fluoropolymer
|
μm
|
38
|
|
Adhesive
|
μm
|
10
|
|
|
PTI
|
μm
|
250
|
|
Adhesive
|
μm
|
10
|
|
|
Fluoropolymer
|
μm
|
38
|
|
|
Total Weight
|
g/m2
|
480
|
Product Information (Properties)
Tensile Strength
|
MD
TD |
N/10mm
N/10mm |
>300
>500 |
KS A 1512:2001
|
Elongation
|
MD
TD |
%
% |
>45
>15 |
KS A 1512:2001
|
Tear Strength
|
MD
TD |
N/mm
N/mm |
>350
>450 |
DIN 53363:2003
|
Dimensional Stability
|
MD 30min @ 150°C
TD 30min @ 150°C |
%
% |
<1.2
<1.0 |
KS A 1510:2005
|
Peel Strength of EVA
|
180° 0.2 m/min
peeling |
N/cm
|
>40
|
KS A 1107:2004
|
Water Vapor Permeability
|
38°C / 100% RH
38°C / 90% RH |
g/m2 . 24hr
g/m2 . 24hr |
<3.3
<1.5 |
KS M 3088:2004
|
Breakdown Voltage
|
10mA
|
kV
|
>17
|
KS C 2105:2003
|
Maximum Permissible System Voltage
|
VDC
|
>1,000
|
IEC 60664-1
|
Remark
Width : 800mm ~1620mm Color : white (Other colors on request) Cut sheets according to customer's request
Advantage of SFC PV Back Film
Dimensional stability of backsheet makes vacuum lamination easier Less shrinkage both in machine and transverse direction of backsheet avoids wrinkles during processing Depending on type of EVA the initial adhesion values can vary greatly
