类别：聚合物；热塑性；聚甲醛（POM）
材料说明：共聚级uv140lg是缩醛共聚物配制提供良好的流动性和低光泽和紫外线稳定性用于汽车内部应用必要的专业级。
抗紫外线，低光泽的表面，广泛的颜色
物性表：| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.33 g/cc | 0.0480 lb/in³ | ISO 1183 | ||
| Linear Mold Shrinkage, Flow | 0.016 cm/cm | 0.016 in/in | ISO 294-4 | ||
| Linear Mold Shrinkage, Transverse | 0.015 cm/cm | 0.015 in/in | ISO 294-4 | ||
| Melt Flow | 13 g/10 min @Load 2.16 kg, Temperature 190 °C |
13 g/10 min @Load 4.76 lb, Temperature 374 °F |
(MVR) cm³/10min; ISO 1133 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Tensile Strength, Yield | 41.0 MPa | 5950 psi | 50mm/min; ISO 527-2/1A | ||
| Elongation at Break | 11 % | 11 % | 50mm/min; ISO 527-2/1A | ||
| Elongation at Yield | 10 % | 10 % | 50mm/min; ISO 527-2/1A | ||
| Tensile Modulus | 1.95 GPa | 283 ksi | 1mm/min; ISO 527-2/1A | ||
| Flexural Modulus | 1.90 GPa | 276 ksi | ISO 178 | ||
| Izod Impact, Notched (ISO) | 4.00 kJ/m² | 1.90 ft-lb/in² | ISO 180/1A | ||
| Charpy Impact, Notched | 0.310 J/cm² | 1.48 ft-lb/in² | ISO 179/1eA | ||
| Tensile Creep Modulus, 1 hour | 1300 MPa | 189000 psi | ISO 899-1 | ||
| Tensile Creep Modulus, 1000 hours | 650 MPa | 94300 psi | ISO 899-1 | ||
| Thermal Properties | Metric | English | Comments | ||
| CTE, linear | 130 µm/m-°C | 72.2 µin/in-°F | ISO 11359-2 | ||
| CTE, linear, Transverse to Flow | 130 µm/m-°C | 72.2 µin/in-°F | ISO 11359-2 | ||
| Melting Point | 165 °C | 329 °F | 10°C/min; ISO 11357-1,-2,-3 | ||
| Deflection Temperature at 0.46 MPa (66 psi) | 138 °C | 280 °F | ISO 75-1, -2 | ||
| Deflection Temperature at 1.8 MPa (264 psi) | 80.0 °C | 176 °F | ISO 75-1, -2 | ||
| Processing Properties | Metric | English | Comments | ||
| Processing Temperature | 80.0 - 105 °C | 176 - 221 °F | Cavity temperature | ||
| Zone 1 | 170 - 175 °C | 338 - 347 °F | |||
| Zone 2 | 170 - 180 °C | 338 - 356 °F | |||
| Zone 3 | 175 - 185 °C | 347 - 365 °F | |||
| Zone 4 | 180 - 190 °C | 356 - 374 °F | |||
| Die Temperature | 185 - 195 °C | 365 - 383 °F | |||
| Melt Temperature | 180 - 195 °C | 356 - 383 °F | |||
| Mold Temperature | 80.0 - 105 °C | 176 - 221 °F | generally preferred range, may vary with thickness | ||
| Drying Temperature | 105 - 110 °C | 221 - 230 °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 | 180 - 200 °C | 356 - 392 °F | |||
| De |
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| Injection molding | Yes | ||||
| Injection speed | slow | ||||
| Pellets | Yes | ||||
| Pre-drying | Predrying is required to ensure a low gloss finish. | ||||
| Processing conditions | ISO 9988-2 | ||||
| Special Information | Use slow injection speed until material passes through gate, then increase. | ||||
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