类别：聚合物；热塑性；聚甲醛（POM）
材料说明：Hostaform®共聚级lg450uv-d是缩醛共聚物配制提供高流量与降低光泽和紫外线稳定性用于汽车内部应用必要的专业级。Hostaform®lg450uv-d适合F
用于汽车内部的紫外线稳定的低光泽，高流动量
物性表：| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.38 g/cc | 0.0499 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 | 32 g/10 min @Load 2.16 kg, Temperature 190 °C |
32 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 Yield | 8.0 % | 8.0 % | 50mm/min; ISO 527-2/1A | ||
| Tensile Modulus | 2.30 GPa | 334 ksi | 1mm/min; ISO 527-2/1A | ||
| Flexural Modulus | 2.30 GPa | 334 ksi | ISO 178 | ||
| Charpy Impact, Notched | 0.400 J/cm² | 1.90 ft-lb/in² | ISO 179/1eA | ||
| 0.350 J/cm² @Temperature -30.0 °C |
1.67 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) | 152 °C | 306 °F | ISO 75-1, -2 | ||
| Deflection Temperature at 1.8 MPa (264 psi) | 90.0 °C | 194 °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 | 82.2 - 93.3 °C | 180 - 200 °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 | |||
| De |
|||||
| Injection molding | Yes | ||||
| Injection speed | slow | ||||
| Pre-drying | Predrying is required before processing to ensure a low gloss finish. | ||||
| Processing conditions | ISO 9988-2 | ||||
| Processing Notes | Use slow injection speed until material passes through gate, then increase. | ||||
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