| About |
|---|
| Toughened Medium Viscosity Acetal Homopolymer&& |
| Product Description | |
|---|---|
| Supplier | DuPont |
| Generic | Paraformaldehyde |
| Material Status | Commercial: Active |
| Features | HB |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| IMPACT | Nominal value | Unit | Test method |
| Charpy Notched Impact Strength | ISO 179/1eA | ||
| -30℃ | 9.0 | kJ/m² | ISO 179/1eA |
| 23℃ | 14 | kJ/m² | ISO 179/1eA |
| Charpy Unnotch Impact strength | ISO 179/1eU | ||
| -30℃ | 330 | kJ/m² | ISO 179/1eU |
| 23℃ | No Break | ISO 179/1eU | |
| Impact strength of cantilever beam notch | ISO 180/1A | ||
| -40℃ | 9.0 | kJ/m² | ISO 180-1A |
| 23℃ | 14 | kJ/m² | ISO 180-1A |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 78.0 | ℃ | ISO 75-2/A |
| 0.45 MPa, unannealed | 146 | ℃ | ISO 75-2/B |
| Vicat Softening Temp | |||
| A50 | 172 | ℃ | ISO 306/A50 |
| B50 | 140 | ℃ | ISO 306 |
| Melting temperature | 178 | ℃ | ISO 11357-3 |
| Linear coefficient of thermal expansion | |||
| TD | 1.2E-4 | 1/℃ | ISO 11359-2 |
| MD | 1.3E-4 | 1/℃ | ISO 11359-2 |
| annealing temperature | 160 | ℃ | |
| annealing time | |||
| Optional | 30.0 | min/mm |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+15 | ohms | IEC 60093 |
| Volume resistivity | > 1.0E+15 | ohms·cm | IEC 60093 |
| Relative permittivity | IEC 60250 | ||
| 100 Hz | 3.60 | IEC 60250 | |
| 1 MHz | 3.60 | IEC 60250 | |
| Compared to the leakage tracing index | 600 | V | IEC 60112 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Burning rate | |||
| 1 mm | 45 | mm/min | ISO 3795 |
| Flame retardant level | UL 94 | ||
| 0.75 mm | HB | UL 94 | |
| 1.50 mm | HB | UL 94 | |
| Flammability level | IEC 60695-11-10, -20 | ||
| 0.75 mm | HB | IEC 60695-11-10, -20 | |
| 1.5 mm | HB | IEC 60695-11-10, -20 | |
| FMVSS flame retardant rating | B | FMVSS 302 | |
| Fogging（Gvalue，condensate） | 2.0E-4 | g | ISO 6452 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| discharge | < 8.00 | mg/kg | VDA 275 |
| Emissions of organic compounds | 3.40 | µgC/g | VDA 277 |
| Specific Wear（Against itself） | 40.0 | 10^-6 mm³/N·m | ASTM D1894 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 2300 | MPa | ISO 527-2 |
| tensile strength | |||
| yield | 56.0 | MPa | ISO 527-2 |
| Tensile strain | |||
| yield | 18 | % | ISO 527-2 |
| Nominal tensile fracture strain | 35 | % | ISO 527-2 |
| Tensile Creep Modulus（1 hr） | 2300 | MPa | ISO 899-1 |
| Tensile creep modulus | |||
| 1000 hr | 1200 | MPa | ISO 899-1 |
| Bending modulus | 2100 | MPa | ISO 178 |
| bending strength | |||
| 3.50% strain | 60.0 | MPa | ISO 178 |
| friction coefficient | |||
| With oneself – dynamic, 1 hour | 0.22 | ASTM D1894 | |
| Rockwell hardness | ISO 2039-2 | ||
| M-level | 79 | ISO 2039-2 | |
| R-level | 117 | ISO 2039-2 |
| PHYSICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Density | 1.38 | g/cm³ | ISO 1183 |
| Melt Flow Rate | 12 | g/10min | ISO 1133 |
| Melt Volume Rate | |||
| 190℃，2.16 kg | 10.0 | cm³/10min | ISO 1133 |
| Shrinkage rate | ISO 294-4 | ||
| TD | 1.6 | % | ISO 294-4 |
| MD | 1.7 | % | ISO 294-4 |
| Water absorption rate | |||
| Saturation, 23 ℃, 2.00 mm | 0.82 | % | ISO 62 |
| Equilibrium, 23 ℃, 50% RH, 2.00 mm | 0.21 | % | ISO 62 |
| Melt density | 1.18 | g/cm³ |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 80 | °C | |
| Drying time – hot air dryer | 2.0 to 4.0 | hr | |
| Recommended maximum moisture content | 0.050 | % | |
| Processing (melt) temperature | 200 to 210 | °C | |
| Melt Temperature, Optimum | 205 | °C | |
| Mold temperature | 40 to 60 | °C | |
| Mold Temperature, Optimum | 50 | °C | |
| Hold pressure | 60.0 to 80.0 | MPa | |
| Drying Recommended | yes | ||
| Hold Pressure Time | 7.50 | s/mm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 10°C/min |
| 3. FMVSS 302 |
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