聚四氟乙烯,棒, PTFE, 20mm直径
产品介绍
| 订货号 | 包装规格 | | Length (Round) | | 874-370-54 | 100 mm | | 076-840-72 | 200 mm | | 711-183-90 | 500 mm | | 836-162-95 | 1000 mm |
产品参数 | Diameter[直径] | 20mm | | Length[长度] | 100 mm - 1000 mm | | Mechanical Properties(机械性能) | | Coefficient of friction | 0.05 - 0.20 | | Elongation at break ( % ) | 400.0 | | Hardness - Rockwell | D50-55-Shore | | Izod impact strength ( J m⁻¹ ) | 160.0 | | Poisson's ratio | 0.460 | | Tensile modulus ( GPa ) | 0.30 - 0.80 | | Tensile strength ( MPa ) | 10.00 - 40.00 | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good | | Acids - dilute | Good | | Alcohols | Good | | Alkalis | Good | | Aromatic hydrocarbons | Good | | Greases and Oils | Good | | Halogenated Hydrocarbons | Good | | Halogens | Good | | Ketones | Good | | Physical Properties(物理性质) | | Density ( g cm⁻³ ) | 2.200 | | Flammability | V-0 | | Limiting oxygen index ( % ) | 95 | | Radiation resistance | Poor | | Refractive index | 1.380 | | Resistance to Ultra-violet | Excellent | | Water absorption - over 24 hours ( % ) | 0.010 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 100.000 - 160.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 120 | | Heat-deflection temperature - 1.8MPa ( C ) | 54.0 | | Lower working temperature ( C ) | -260 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 1000.0 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.25 @23℃ | | Upper working temperature ( C ) | 180 - 260 | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 2 - 2 | | Dielectric strength ( kV mm⁻¹ ) | 50.0 - 170.0 | | Dissipation factor @ 1MHz | 0.0003 - 0.0007 | | Surface resistivity ( Ohm/sq ) | 10¹⁷ | | Volume resistivity ( Ohmcm ) | 10¹⁸-10¹⁹ |
其他参数 公差 | 直径 | ≤10mm | ±10% |
|---|
| 聚合物 | +20% / -10% | | 陶瓷 | +20% / -10% | |
| >10mm | ±5% | | 陶瓷 | +20% / -10% | | 聚合物 | +20% / -10% | |
| 长度 | <100mm | ±1mm |
|---|
| ≥100mm | +5% / -1% |
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