PTFE fine powder has high temperature resistance, corrosion resistance, high insulation and excellent electrical properties, which makes it applicable to a wide range of fields. PTFE fine powder for wire cable field is a very good choice.
PTFE is a tough, soft, inelastic material with moderate tensile strength and good low-temperature performance. Even at temperatures as low as -269℃, PTFE retains its ductility under pressure.
PTFE exhibits excellent electrical insulation properties over a wide temperature and frequency range.
PTFE possesses relatively high heat and low-temperature resistance, with a long-term operating temperature range of -200℃ to +250℃.
PTFE is extremely stable against electric arcs, typically exhibiting arc resistance greater than 300 seconds. Its surface is not easily carbonized, and it can withstand high-voltage discharges.
PTFE fine powder, after being mixed with a certain amount of additives (such as petroleum ether) and fillers (such as quartz powder), process thin-walled wires and cables through paste extrusion. It is also a common process method for the time being.
PTFE fine powder can also be extruded and then rolled into a film (also known as tape) for use as insulation or sheathing for fine-diameter wires.
| No. | ITEM | UNIT | VALUE |
|---|---|---|---|
| Grade | Excellent Grade | ||
| 1 | Appearance | White powder | |
| 2 | Cleaness | Excellent Grade | |
| 3 | Bulk Density | g/l | 475±100 |
| 4 | Tensile Strength ≥ | Mpa | 24 |
| 5 | Elongation ≥ | % | 300 |
| 6 | Particle Size | um | 400-575 |
| 7 | Moisture Content≤ | % | 0.03 |
| 8 | Standard Relative Density | 2.165-2.180 | |
| 9 | Maximum Reduction Ratio | 1000:1 | |
| 10 | Extrusion Pressure | Mpa | 20.0-35.0(400:1) |
| 11 | Thermal Instability Index≤ | 50 | |
| 12 | Processing Method | Paste Extrusion |
Particularly suitable for thick wall tube and wire cable etc.
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