材料 >> 聚合物材料
聚对苯二甲酸乙二醇酯,棒, Polyester, PET, PETP, Opaque White, 25mm直径
产品介绍 | 订货号 | 包装规格 | | Length (Round) | | 750-247-72 | 100 mm | | 780-968-31 | 500 mm | | 621-041-82 | 1000 mm |
产品参数 | Colour[颜色] | Opaque White | | Diameter[直径] | 25mm | | Length[长度] | 100 mm - 1000 mm | | Structure[结构] | Semi Crystalline | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good-Poor | | Acids - dilute | Good | | Alcohols | Good | | Alkalis | Poor | | Aromatic hydrocarbons | Good-Fair | | Greases and Oils | Good | | Halogenated Hydrocarbons | Good-Poor | | Halogens | Fair-Poor | | Ketones | Good-Fair | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 3 | | Dielectric strength ( kV mm⁻¹ ) | 17.0 | | Dissipation factor @ 1kHz | 0.0020 | | Surface resistivity ( Ohm/sq ) | 10¹³ | | Volume resistivity ( Ohmcm ) | >10¹⁴ | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 20.000 - 80.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 115 | | Heat-deflection temperature - 1.8MPa ( C ) | 80.0 | | Lower working temperature ( C ) | -40 - -60 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 1200.0 - 1350.0 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.15 - 0.40 @23℃ | | Upper working temperature ( C ) | 115 - 170 | | Physical Properties(物理性质) | | Density ( g cm⁻³ ) | 1.300 - 1.400 | | Flammability | HB | | Limiting oxygen index ( % ) | 21 | | Radiation resistance | Good | | Refractive index | 1.580-1.640 | | Resistance to Ultra-violet | Fair | | Water absorption - equilibrium ( % ) | < 0.70 | | Water absorption - over 24 hours ( % ) | 0.100 | | Mechanical Properties(机械性能) | | Coefficient of friction | 0.20 - 0.40 | | Hardness - Rockwell | M94-101 | | Izod impact strength ( J m⁻¹ ) | 13.0 - - 35.0 | | Poisson's ratio | 0.370 - 0.440 | | Tensile modulus ( GPa ) | 2.00 - 4.00 | | Tensile strength ( MPa ) | 80.00 , for biax film 190-260 |
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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