材料 >> 聚合物材料
聚乙烯, U.H.M.W.,片, UHMW PE, Natural, 20mm厚
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介绍 | 订货号 | 包装规格 | | Sizes | | 758-286-73 | 100 mm x 100 mm | | 008-790-82 | 150 mm x 150 mm | | 997-016-68 | 300 mm x 300 mm | | 355-113-75 | 500 mm x 500 mm |
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参数 | Colour[颜色] | Natural | | Thickness[厚度] | 20mm | | Electrical Properties(电气特性) | | Dielectric constant @1MHz | 2 | | Dielectric strength ( kV mm⁻¹ ) | 28.0 | | Dissipation factor @ 1MHz | 1.0000 - 10.0000 x 10⁻⁴ | | Surface resistivity ( Ohm/sq ) | 10¹³ | | Volume resistivity ( Ohmcm ) | 10¹⁸ | | Thermal Properties(热性能) | | Coefficient of thermal expansion ( x10⁻⁶ K⁻¹ ) | 130.000 - 200.000 | | Heat-deflection temperature - 0.45MPa ( C ) | 69 | | Heat-deflection temperature - 1.8MPa ( C ) | 42.0 | | Specific heat ( J K⁻¹ kg⁻¹ ) | 1900.0 | | Thermal conductivity ( W m⁻¹ K⁻¹ ) | 0.42 - 0.51 @23℃ | | Upper working temperature ( C ) | 55 - 95 | | Chemical Resistance(耐化学性) | | Acids - concentrated | Good-Fair | | Acids - dilute | Good | | Alcohols | Good | | Alkalis | Good | | Aromatic hydrocarbons | Fair | | 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 ) | 0.940 | | Flammability | HB | | Limiting oxygen index ( % ) | 17 | | Radiation resistance | Fair | | Resistance to Ultra-violet | Poor | | Water absorption - over 24 hours ( % ) | < 0.010 | | Mechanical Properties(机械性能) | | Coefficient of friction | 0.10 - 0.20 | | Elongation at break ( % ) | 500.0 | | Hardness - Rockwell | R50-70 | | Izod impact strength ( J m⁻¹ ) | > 1000.0 | | Poisson's ratio | 0.460 | | Tensile modulus ( GPa ) | 0.20 - 1.20 | | Tensile strength ( MPa ) | 20.00 - 40.00 |
其他参数 公差 | 长度 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 直径 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 厚度 | | ±10% |
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| 陶瓷 | ±20% | | 复合材料 | ±20% | | 聚合物 | ±20% | | 长度 1 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% | | 长度 2 | <100mm | ±1mm |
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| ≥100mm | +2% / -1% |
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