Solar backing film
Special electrical insulation film
1
|
Troduct name
|
Polyester film for electrical insulation |
Specification(mm):
|
0.10-0.40 | |
Features:
|
Translucent, milky white, excellent electrical insulation performance; | |
Use:
|
Insulation between motor slots, inter-turn insulation, cut-off insulation between dry-type transformer coils, etc. | |
2
|
Product name
|
Polyester film for electrical insulation |
Specification(mm):
|
0.10-0.35 | |
Features:
|
Translucent, creamy yellow, excellent electrical insulation performance | |
Use:
|
Motor slot insulation, inter-turn insulation and so on | |
3
|
Product name
|
Low extraction polyester film |
Specification(mm):
|
0.10-0.35 | |
Features:
|
Translucent; low extraction of xylene; excellent electrical insulation properties, heat resistance | |
Use:
|
Air conditioning, refrigerator compressor slot insulation, inter-turn insulation and so on |
Thin film for solar cell backing
Serial number
|
Project
|
Unit
|
Test result
|
||
model
|
model
|
||||
1
|
Thickness average
Differential Thickness Batch Individual Deviation Value
|
%
|
±3
|
±3
|
|
%
|
±7
|
±6
|
|||
2
|
Tensile Strength
|
MD
|
MPa
|
152
|
140
|
TD
|
267
|
251
|
|||
3
|
Elongation at break
|
MD
|
%
|
144
|
138
|
TD
|
59
|
46
|
|||
4
|
Shrinkage
|
MD
|
%
|
3.0
|
3.3
|
TD
|
0.05
|
0.08
|
|||
5
|
Wet tension
|
mN/m
|
41
|
|
|
6
|
Porosity (average)
|
%
|
|
9.0
|
|
7
|
Dielectric strength
|
Average
|
Mv/m
|
615
|
608
|
Minimum
|
460
|
450
|
|||
8
|
Surface roughness (Ra)
|
AK
|
µm
|
0.10
|
0.35
|
CR
|
0.09
|
0.38
|
|||
9
|
Relative permittivity
|
|
2.24
|
2.27
|
|
10
|
Dielectric loss factor tgδ
|
|
1.2×10-4
|
1.00×10-4
|
Performance of thin film products for solar cell backing
Item
|
Technology data |
|
Test method |
|||
Normal thickness
|
125 |
175 |
250 |
μm |
|
|
Maximum error in
Average thickness |
2.5 |
2.5 |
2.5 |
% |
|
|
Maximum error in |
1.5 |
1.5 |
1.5 |
% |
|
|
|
MD |
≥ 170 |
≥ 160 |
≥ 150 |
MPa |
ASTM D 882 |
TD |
≥ 170 |
≥ 160 |
≥ 150 |
MPa |
||
|
MD |
≥ 70 |
≥ 80 |
≥ 90 |
% |
ASTM D 882 |
TD |
≥ 70
|
≥ 80
|
≥ 90
|
%
|
||
Maximum thermal shrinkage |
MD |
£ 1.5 |
£ 1.5 |
£ 1.5 |
% |
BMS TT 1.1 |
TD |
0.4 |
0.4 |
0.5 |
% |
||
Dielectric strength |
≥ 10 |
≥ 11 |
≥ 15 |
kV/mm |
DIN EN 60243-2 |
|
Corona treatment(side) |
≥ 46 |
≥ 46 |
≥ 46 |
mN/m |
ASTM D 2578a |