类别：聚合物；热塑性；聚甲醛（POM）
材料说明：Hostaform®ec140xf是导电要求静电耗散应用ESD级缩醛共聚物。ec140xf具有侵略性的混合燃料的一种改进的阻力。
静电耗散，包括热柴油的燃料
物性表：| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.42 g/cc | 0.0513 lb/in³ | ISO 1183 | ||
| Linear Mold Shrinkage, Flow | 0.021 cm/cm | 0.021 in/in | ISO 294-4 | ||
| Linear Mold Shrinkage, Transverse | 0.019 cm/cm | 0.019 in/in | ISO 294-4 | ||
| Melt Flow | 4.0 g/10 min @Load 2.16 kg, Temperature 190 °C |
4.0 g/10 min @Load 4.76 lb, Temperature 374 °F |
(MVR) cm³/10min; ISO 1133 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Tensile Strength, Yield | 53.0 MPa | 7690 psi | 50mm/min; ISO 527-2/1A | ||
| Elongation at Break | 12 % | 12 % | 50mm/min; ISO 527-2/1A | ||
| Elongation at Yield | 4.7 % | 4.7 % | 50mm/min; ISO 527-2/1A | ||
| Tensile Modulus | 2.70 GPa | 392 ksi | 1mm/min; ISO 527-2/1A | ||
| Flexural Modulus | 2.65 GPa | 384 ksi | ISO 178 | ||
| Charpy Impact Unnotched | 7.00 J/cm² | 33.3 ft-lb/in² | ISO 179/1eU | ||
| Charpy Impact, Notched | 0.400 J/cm² | 1.90 ft-lb/in² | ISO 179/1eA | ||
| Electrical Properties | Metric | English | Comments | ||
| Volume Resistivity | 500 ohm-cm | 500 ohm-cm | IEC 60093 | ||
| Surface Resistance | 1000 ohm | 1000 ohm | IEC 60093 | ||
| Thermal Properties | Metric | English | Comments | ||
| CTE, linear | 100 µm/m-°C | 55.6 µin/in-°F | ISO 11359-2 | ||
| CTE, linear, Transverse to Flow | 110 µm/m-°C | 61.1 µin/in-°F | ISO 11359-2 | ||
| Melting Point | 166 °C | 331 °F | 10°C/min; ISO 11357-1,-2,-3 | ||
| Deflection Temperature at 0.46 MPa (66 psi) | 152 °C | 306 °F | ISO 75-1, -2 | ||
| Deflection Temperature at 1.8 MPa (264 psi) | 91.0 °C | 196 °F | ISO 75-1, -2 | ||
| Processing Properties | Metric | English | Comments | ||
| Processing Temperature | 80.0 - 120 °C | 176 - 248 °F | Cavity temperature | ||
| Zone 1 | 170 - 180 °C | 338 - 356 °F | |||
| Zone 2 | 180 - 190 °C | 356 - 374 °F | |||
| Zone 3 | 190 - 200 °C | 374 - 392 °F | |||
| Zone 4 | 190 - 210 °C | 374 - 410 °F | |||
| Die Temperature | 190 - 210 °C | 374 - 410 °F | |||
| Melt Temperature | 190 - 210 °C | 374 - 410 °F | |||
| Mold Temperature | >= 76.7 °C | >= 170 °F | |||
| 82.2 - 93.3 °C | 180 - 200 °F | generally preferred range, may vary with thickness | |||
| Drying Temperature | 80.0 - 100 °C | 176 - 212 °F | |||
| Dry Time | 3.00 hour | 3.00 hour | |||
| Injection Pressure | 60.0 - 120 MPa | 8700 - 17400 psi | |||
| Hold Pressure | 60.0 - 120 MPa | 8700 - 17400 psi | |||
| Back Pressure | 0.500 MPa | 72.5 psi | |||
| Hot-Working Temperature | 190 - 210 °C | 374 - 410 °F | |||
| De |
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| Injection molding | Yes | ||||
| Longer pre-drying times/storage | Predrying for conductive carbon based ESD grades is required. | ||||
| Processing conditions | ISO 9988-2 | ||||
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