Polyester Film
詳細說明
Description
POLYESTER FILM is a polyethylene terephtalate based transparent flexible polyester film which
becomes cloudy with increasing thickness.
Properties
POLYESTER FILM provides the electrical industry with unique design and construction options due to the outstanding balance of its electrical properties in combination with chemical, thermal and physical properties.
The polyester film is characterised by its excellent resistance to moisture and common solvents.
It can be used at temperature of -70oC to 150oC. since it does not contain any softening agents, it does not become brittle with age when use in normal conditions.
Application
According to the manufacturers specification POLYESTER FILM is used in class B (130oC) systems by numerous manufacturers of electrical motors. POLYESTER FILM is use as slot insulation, phase insulation and wedges for motors and generators. POLYESTER FILM is use as core, interlayer and final insulation for transformers, chokes and relays.
Delivery form
Film thickness range | Width | KGS/Roll | Colore |
0.023mm | 1000mm 1270mm 1150mm | 550KGS/Roll 1100KGS/Roll 200KGS/Roll
| Transparent Milky White Hazy color Black color White color |
0.036mm | |||
0.050mm | |||
0.075mm | |||
0.100mm | |||
0.125mm | |||
0.190mm | |||
0.250mm | |||
0.350mm |
Technical Value
Total Thickness | unit | 23 | 36 | 50 | 75 | 100 | 125 | 190 | 250 | 350 | Test Method | |
Specific weight | g/m2 | 32 | 50 | 70 | 105 | 140 | 175 | 265 | 350 | 480 | ||
Tensile Strength | Longitudinal |
MPa
|
210
| 230 | 190 | 190 | 190 | 180 | 190 | 190 | 190 | ASTM D882 |
Transversal | MPa | 230 | 260 | 210 | 200 | 200 | 200 | 220 | 299 | 190 | ASTM D882 | |
Elongation at break | Longitudinal | % |
130 |
130 |
140 |
140 |
150 |
150 |
190 |
210 |
240 | ASTM D882 |
Transversal | 110 | 110 | 120 | 120 | 120 | 130 | 140 | 170 | 200 | ASTM D882 | ||
Shrinkage 30 minutes at 150oC
| Longitudinal |
% |
1.3 |
2.0 |
1.2 |
1.1 |
1.1 |
1.1 |
1.3 |
1.3 |
1.3 | ASTM D1204 |
Transversal | 1.0 | 1.7 | 1.1 | 1.0 | 1.0 | 1.0 | 1.3 | 1.3 | 1.3 | ASTM D1204 | ||
Shrinkage 30 minutes at 250oC
| Longitudinal | % | 4.0 | 7.0 | 2.8 | 2.5 | 2.5 | 2.5 | 3.5 | 3.5 | 3.5 | ASTM D1204 |
Transversal | 3.0 | 6.5 | 2.5 | 2.3 | 2.3 | 2.3 | 3.3 | 3.3 | 3.3 | ASTM D1204 | ||
Dielectric Strength | kV | 44 | 5 | 8 | 10 | 12 | 13 | 17.5 | 19 | 20 | ASTN D149 | |
Dielectric Constant AC 50 Hz, 25oC | 3.3 | ASTM D150 | ||||||||||
Dielectric Loos factor AC 50 Hz , 25Co | 0.025 | ASTM D150 | ||||||||||
Specific volume Resistance at 25oC | ?.cm | 1018 | ASTM D227 | |||||||||
Specific surface Resistance | ?.cm | 1016
| 23oC 30%r.m | |||||||||
Specific surface Resistance | ?.cm | 1016 | 23oC 80% r.m. | |||||||||
Any requests,please feel free to contact with us .
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