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
半岛bd体育手机客户端 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 |
半岛bd体育手机客户端 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?? ) |
17.0 |
| Dissipation factor @ 1kHz |
0.0020 |
| Surface resistivity ( Ohm/sq ) |
10?? |
| Volume resistivity ( Ohmcm ) |
>10?? |
| Thermal Properties(热性能) |
| Coefficient of thermal expansion ( x10?? K?? ) |
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?? kg?? ) |
1200.0 - 1350.0 |
| Thermal conductivity ( W m?? K?? ) |
0.15 - 0.40 @23℃ |
| Upper working temperature ( C ) |
115 - 170 |
| Physical Properties(物理性质) |
| Density ( g cm?? ) |
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?? ) |
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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