材料 >> 聚合物材料
聚乙烯,低密度,棒, LDPE, Natural, 50.8mm直径
半岛bd体育手机客户端 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 |
半岛bd体育手机客户端 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?? ) |
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?? K?? ) |
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?? kg?? ) |
1900.0 - 2300.0 |
| Thermal conductivity ( W m?? K?? ) |
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?? ) |
> 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?? ) |
27.0 |
| Dissipation factor @ 1MHz |
1.0000 - 10.0000 x 10?? |
| Surface resistivity ( Ohm/sq ) |
10?? |
| Volume resistivity ( Ohmcm ) |
10??-10?? |
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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