聚乙烯,低密度,棒, LDPE, Natural, 50.8mm直径
产品介绍
| 订货号 | 包装规格 | | Length (Round) | | 687-253-90 | 100 mm | | 352-535-69 | 200 mm | | 205-926-93 | 500 mm | | 859-308-70 | 1000 mm |
产品参数 | Colour[颜色] | Natural | | Diameter[直径] | 50.8mm | | Length[长度] | 100 mm - 1000 mm | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good-Fair | | Acids - dilute | Good | | Alcohols | Good | | Alkalis | Good | | Aromatic hydrocarbons | Fair-Poor | | Greases and Oils | Good-Fair | | Halogenated Hydrocarbons | Fair-Poor | | Halogens | Fair-Poor | | Ketones | Good-Fair | | Physical Properties(物理性质) | | Density ( g cm⁻³ ) | 0.920 | | Flammability | HB | | Limiting oxygen index ( % ) | 17 | | Radiation resistance | Fair | | Refractive index | 1.510 | | Resistance to Ultra-violet | Poor | | Water absorption - over 24 hours ( % ) | < 0.015 | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 100.000 - 200.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 50 | | Heat-deflection temperature - 1.8MPa ( C ) | 35.0 | | Lower working temperature ( C ) | -60 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 1900.0 - 2300.0 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.33 @23℃ | | Upper working temperature ( C ) | 50 - 90 | | Mechanical Properties(机械性能) | | Elongation at break ( % ) | 400.0 | | Hardness - Rockwell | D41-46-Shore | | Izod impact strength ( J m⁻¹ ) | > 1000.0 | | Tensile modulus ( GPa ) | 0.10 - 0.30 | | Tensile strength ( MPa ) | 5.00 - 25.00 | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 2 - 2 | | Dielectric strength ( kV mm⁻¹ ) | 27.0 | | Dissipation factor @ 1MHz | 1.0000 - 10.0000 x 10⁻⁴ | | Surface resistivity ( Ohm/sq ) | 10¹³ | | Volume resistivity ( Ohmcm ) | 10¹⁵-10¹⁸ |
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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