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 N 2640 Z6 UNC是一个弹性体具有优良的冲击强度改性POM注塑级。
物性表：| Physical Properties | Metric | English | Comments | ||
|---|---|---|---|---|---|
| Density | 1.33 g/cc | 0.0480 lb/in³ | ISO 1183 | ||
| Water Absorption | 1.1 % | 1.1 % | 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 | ||
| Linear Mold Shrinkage, Flow | 0.016 cm/cm | 0.016 in/in | ISO Data | ||
| Linear Mold Shrinkage, Transverse | 0.016 cm/cm | 0.016 in/in | ISO Data | ||
| Melt Flow | 4.5 g/10 min @Load 2.16 kg, Temperature 190 °C |
4.5 g/10 min @Load 4.76 lb, Temperature 374 °F |
ISO 1133 | ||
| Mechanical Properties | Metric | English | Comments | ||
| Tensile Strength, Yield | 37.0 MPa | 5370 psi | 50mm/min; ISO 527 | ||
| 37.0 MPa | 5370 psi | 2 in/min; ASTM Test | |||
| Elongation at Break | >= 50 % | >= 50 % | 50mm/min, Nominal strain; ISO 527 | ||
| Elongation at Yield | 17 % | 17 % | 50mm/min; ISO 527 | ||
| 17 % | 17 % | 2 in/min; ASTM Test | |||
| Tensile Modulus | 1.30 GPa | 189 ksi | 1mm/min; ISO 527 | ||
| 1.36 GPa | 197 ksi | ASTM Test | |||
| Flexural Modulus | 1.32 GPa | 191 ksi | ASTM Test | ||
| Izod Impact, Notched | 0.590 J/cm @Temperature -40.0 °C |
1.11 ft-lb/in @Temperature -40.0 °F |
ASTM Test | ||
| 1.55 J/cm @Thickness 3.17 mm |
2.90 ft-lb/in @Thickness 0.125 in |
ASTM Test | |||
| Charpy Impact Unnotched | NB | NB | ISO 179 | ||
| NB @Temperature -30.0 °C |
NB @Temperature -22.0 °F |
ISO 179 | |||
| Charpy Impact, Notched | 1.80 J/cm² | 8.57 ft-lb/in² | ISO 179 | ||
| 0.900 J/cm² @Temperature -30.0 °C |
4.28 ft-lb/in² @Temperature -22.0 °F |
ISO 179 | |||
| Tensile Creep Modulus, 1 hour | 825 MPa | 120000 psi | ISO 899 | ||
| Tensile Creep Modulus, 1000 hours | 575 MPa | 83400 psi | ISO 899 | ||
| Electrical Properties | Metric | English | Comments | ||
| Volume Resistivity | 1.00e+11 ohm-cm | 1.00e+11 ohm-cm | IEC 60093 | ||
| Surface Resistance | 1.00e+12 ohm | 1.00e+12 ohm | IEC 60093 | ||
| Dielectric Constant | 4.3 @Frequency 1.00e+6 Hz |
4.3 @Frequency 1.00e+6 Hz |
IEC 60250 | ||
| 4.5 @Frequency 100 Hz |
4.5 @Frequency 100 Hz |
IEC 60250 | |||
| Dielectric Strength | 36.0 kV/mm | 914 kV/in | IEC 60243-1 | ||
| Dissipation Factor | 0.010 @Frequency 100 Hz |
0.010 @Frequency 100 Hz |
IEC 60250 | ||
| 0.025 @Frequency 1.00e+6 Hz |
0.025 @Frequency 1.00e+6 Hz |
IEC 60250 | |||
| Comparative Tracking Index | 600 V | 600 V | IEC 60112 | ||
| Thermal Properties | Metric | English | Comments | ||
| CTE, linear | 80.0 µm/m-°C @Temperature -30.0 - 30.0 °C |
44.4 µin/in-°F @Temperature -22.0 - 86.0 °F |
ASTM Test | ||
| CTE, linear, Parallel to Flow | 130 µm/m-°C | 72.2 µin/in-°F | ISO 11359 | ||
| Melting Point | 166 °C | 331 °F | 10 K/min | ||
| 166 °C | 331 °F | ASTM Test | |||
| Deflection Temperature at 0.46 MPa (66 psi) | 129 °C | 264 °F | ASTM Test | ||
| 130 °C | 266 °F | ISO 75 | |||
| Deflection Temperature at 1.8 MPa (264 psi) | 70.0 °C | 158 °F | ISO 75 | ||
| 71.0 °C | 160 °F | ASTM Test | |||
| Vicat Softening Point | 120 °C | 248 °F | (50 °C/h / 50N) - B/50; ISO 306 | ||
| Flammability, UL94 | HB @Thickness 1.50 mm |
HB @Thickness 0.0591 in |
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| HB @Thickness 3.00 mm |
HB @Thickness 0.118 in |
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| Color | Natural | ||||
| Commercial Status | North America and Europe | ||||
| Form | Pellets | ||||
| Impact Modified | Yes | ||||
| Primary Processing Technique | Injection Molding | ||||
| Processing | Injection Molding | ||||
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