类别：聚合物；热塑性；聚甲醛（POM）
材料说明：®共聚级m90-45xap®是抗紫外线，低排放版本，中等粘度的聚合物一般用途主要用于汽车内饰市场注塑提供最佳的性能。这种等级提供全面的交流
低排放的抗紫外线级基于Celcon M90™用于汽车内部
物性表：| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.41 g/cc | 0.0509 lb/in³ | ISO 1183 | ||
| Linear Mold Shrinkage, Flow | 0.025 cm/cm | 0.025 in/in | ISO 294-4 | ||
| Linear Mold Shrinkage, Transverse | 0.024 cm/cm | 0.024 in/in | ISO 294-4 | ||
| Melt Flow | 8.0 g/10 min @Load 2.16 kg, Temperature 190 °C |
8.0 g/10 min @Load 4.76 lb, Temperature 374 °F |
(MVR) cm³/10min; ISO 1133 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Tensile Strength, Yield | 64.0 MPa | 9280 psi | 50mm/min; ISO 527-2/1A | ||
| Elongation at Yield | 9.0 % | 9.0 % | 50mm/min; ISO 527-2/1A | ||
| Tensile Modulus | 2.65 GPa | 384 ksi | 1mm/min; ISO 527-2/1A | ||
| Flexural Strength | 77.0 MPa | 11200 psi | ISO 178 | ||
| Flexural Modulus | 2.45 GPa | 355 ksi | ISO 178 | ||
| Izod Impact, Notched (ISO) | 6.00 kJ/m² | 2.86 ft-lb/in² | ISO 180/1A | ||
| Charpy Impact, Notched | 0.600 J/cm² | 2.86 ft-lb/in² | ISO 179/1eA | ||
| 0.400 J/cm² @Temperature -30.0 °C |
1.90 ft-lb/in² @Temperature -22.0 °F |
ISO 179/1eA | |||
| Thermal Properties | Metric | English | Comments | ||
| CTE, linear | 110 µm/m-°C | 61.1 µin/in-°F | ISO 11359-2 | ||
| CTE, linear, Transverse to Flow | 120 µm/m-°C | 66.7 µin/in-°F | ISO 11359-2 | ||
| Melting Point | 167 °C | 333 °F | 10°C/min; ISO 11357-1,-2,-3 | ||
| Deflection Temperature at 0.46 MPa (66 psi) | 151 °C | 304 °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 - 175 °C | 338 - 347 °F | |||
| Zone 2 | 170 - 180 °C | 338 - 356 °F | |||
| Zone 3 | 170 - 180 °C | 338 - 356 °F | |||
| Zone 4 | 175 - 185 °C | 347 - 365 °F | |||
| Die Temperature | 180 - 190 °C | 356 - 374 °F | |||
| Melt Temperature | 180 - 190 °C | 356 - 374 °F | |||
| 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 | 180 - 200 °C | 356 - 392 °F | |||
| De |
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| Injection molding | Yes | ||||
| Injection speed | slow-medium | ||||
| Pellets | Yes | ||||
| Pre-drying | Drying is recommended to achieve lowest emission performance. | ||||
| Profile extrusion | Yes | ||||
| Recommended shot size | half the maximum shot size | to ensure short residence time |
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