PTFE needle felt is a filter material made of PTFE (polytetrafluoro-ethylene fiber) through three-dimensional needle punching. PTFE fiber is a macromolecular linear structure, so it has strong tempera-ture resistance, wear resistance, corrosion resistance, chemical resis-tance, and is widely used in various harsh flue gas side filter envi-ronments such as steel, electric power, and garbage incineration.
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| Technical Specifications | |
| Name | PTFE needle felt |
| Material | PTFE fiber/PTFE substrate fabric |
| Grammage | 500g/㎡ |
| Air Permeability | 80～100m³/m2/s |
| Warp Tensile Strength | ＞1800 N/5×20cm |
| Weft Tensile Strength | ＞1800 N/5×20cm |
| Warp Elongation | ＜30％ |
| Weft Elongation | ＜30％ |
| Operating Temperature | ≤260℃ instantaneous 300℃ |
| Filtration Air Velocity | 1.0～1.2m/min |
| Post-treatment Method | PTFE impregnation,Membrane Lamination,coating |
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