Easy immersion type electrical polyester non woven fabrics
Easy immersion type electrical polyester non woven fabrics with high strength and low elongation polyester fiber as raw material, adopt air laid non woven fabric, hot forming. It has a uniform porosity, low apparent density, good performance with impregnation, It is apply to the laminate substrate, dry-type power transformer coil layer insulation, electric motor coil dressing and liner insulation etc..
Technical Criteria:
|
No |
Items |
Unit |
Index |
|
1 |
Yield |
g/m2 |
55 |
105 |
150 |
|
2 |
Nominal Thickness |
mm |
0.12 |
0.23 |
0.32 |
|
3 |
Thickness tolerance |
average |
mm |
±0.020 |
±0.030 |
±0.050 |
|
individual |
±0.030 |
±0.050 |
±0.070 |
|
4 |
Quantitative irregularity |
% |
≤10 |
|
5 |
Apparent density |
g/m2 |
0.50±0.08 |
0.45±0.10 |
|
6 |
Tensile Strength |
MD |
N/50mm |
≥30 |
≥35 |
≥60 |
|
TD |
≥25 |
≥30 |
≥50 |
|
7 |
Elongation at break |
MD |
% |
≥5 |
≥4 |
|
TD |
≥5 |
≥4 |
|
8 |
Heat Shrinkable Rate150±2℃ |
% |
≤3 |
|
9 |
The Absorption Amount（Toluene） |
g/m2 |
≥80 |
≥150 |
≥200 |
|
10 |
Suction Height（Toluene） |
MD |
30s |
mm |
≥15 |
≥25 |
≥30 |
|
60s |
≥20 |
≥35 |
≥40 |
|
300s |
≥25 |
≥45 |
≥60 |
|
TD |
30s |
≥10 |
≥20 |
≥25 |
|
60s |
≥15 |
≥30 |
≥35 |
|
300s |
≥20 |
≥40 |
≥55 | |
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