类别：聚合物；热塑性；聚甲醛（POM）；乙缩醛共聚物，影响改性
材料说明：Ultraform n2640 Z4 bk140 q600是一种高韧性，弹性体的改性POM，注塑级。
物性表：| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.35 g/cc | 0.0488 lb/in³ | ISO 1183 | ||
| Water Absorption | 0.80 % | 0.80 % | ISO 62 | ||
| Moisture Absorption at Equilibrium | 0.25 % | 0.25 % | 23°C/50% R.H.; ISO 62 | ||
| Linear Mold Shrinkage | 0.019 cm/cm | 0.019 in/in | ASTM Data; MD | ||
| Mechanical Properties | Metric | English | Comments | ||
| Tensile Strength, Yield | 36.0 MPa | 5220 psi | 50mm/min; ISO 527 | ||
| Elongation at Break | >= 50 % | >= 50 % | 50mm/min, Nominal strain; ISO 527 | ||
| Elongation at Yield | 14 % | 14 % | 50mm/min; ISO 527 | ||
| Tensile Modulus | 1.55 GPa | 225 ksi | 1mm/min; ISO 527 | ||
| Flexural Modulus | 1.57 GPa | 228 ksi | ASTM Test | ||
| 1.74 GPa | 252 ksi | ISO Data | |||
| Izod Impact, Notched | 0.950 J/cm @Thickness 3.17 mm |
1.78 ft-lb/in @Thickness 0.125 in |
ASTM Test | ||
| Izod Impact, Notched (ISO) | 11.7 kJ/m² | 5.57 ft-lb/in² | ISO Test | ||
| Thermal Properties | Metric | English | Comments | ||
| Melting Point | 167 °C | 333 °F | 10 K/min | ||
| 167 °C | 333 °F | ASTM Test | |||
| Deflection Temperature at 1.8 MPa (264 psi) | 75.0 °C | 167 °F | ASTM Test | ||
| De |
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| Color | BK140 | ||||
| Commercial Status | Active America | ||||
| Impact Modified | Yes | ||||
| Primary Processing Technique | Injection Molding |
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