Specifications
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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 | |||||
