| About |
|---|
| Toughened Medium-high Viscosity Acetal Homopolymer with Very Low Emissions&& |
| Product Description | |
|---|---|
| Supplier | DuPont |
| Generic | Paraformaldehyde |
| Material Status | Commercial: Active |
| Features | Low odor |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Extrusion |
| Technical Data | |||
|---|---|---|---|
| IMPACT | Nominal value | Unit | Test method |
| Charpy Notched Impact Strength | ISO 179/1eA | ||
| -30℃ | 10 | kJ/m² | ISO 179/1eA |
| 23℃ | 18 | kJ/m² | ISO 179/1eA |
| Charpy Unnotch Impact strength | ISO 179/1eU | ||
| -30℃ | 250 | kJ/m² | ISO 179/1eU |
| 23℃ | No Break | ISO 179/1eU | |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 71.0 | ℃ | ISO 75-2/A |
| 0.45 MPa, unannealed | 132 | ℃ | ISO 75-2/B |
| Melting temperature | 178 | ℃ | ISO 11357-3 |
| Linear coefficient of thermal expansion | |||
| TD | 1.3E-4 | 1/℃ | ISO 11359-2 |
| MD | 1.2E-4 | 1/℃ | ISO 11359-2 |
| annealing temperature | 160 | ℃ | |
| annealing time | |||
| Optional | 30.0 | min/mm |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Burning rate | |||
| 1 mm | 46 | mm/min | ISO 3795 |
| FMVSS flame retardant rating | B | FMVSS 302 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| discharge | < 2.00 | mg/kg | VDA 275 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 2000 | MPa | ISO 527-2 |
| tensile strength | |||
| yield | 54.0 | MPa | ISO 527-2 |
| Tensile strain | |||
| yield | 20 | % | ISO 527-2 |
| Nominal tensile fracture strain | > 50 | % | ISO 527-2 |
| Bending modulus | 1900 | MPa | ISO 178 |
| bending strength | |||
| 3.50% strain | 56.0 | MPa | ISO 178 |
| Rockwell hardness | ISO 2039-2 | ||
| M-level | 69 | ISO 2039-2 | |
| R-level | 116 | ISO 2039-2 |
| PHYSICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Density | 1.38 | g/cm³ | ISO 1183 |
| Melt Flow Rate | 6.0 | g/10min | ISO 1133 |
| Melt Volume Rate | |||
| 190℃，2.16 kg | 5.80 | cm³/10min | ISO 1133 |
| Shrinkage rate | ISO 294-4 | ||
| TD | 1.5 | % | ISO 294-4 |
| MD | 1.4 | % | ISO 294-4 |
| Melt density | 1.15 | g/cm³ | |
| Ejection temperature | 115 | ℃ | |
| Specific Heat Capacity of Melt | 2880 | J/kg/℃ | |
| Thermal Conductivity of Melt | 0.21 | W/m/K |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Extrusion | 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 | |
| Drying temperature | 75 to 85 | °C | |
| Drying time | 2.0 to 4.0 | hr | |
| Recommended maximum moisture content | 0.050 | % | |
| Melt temperature | 195 to 205 | °C | |
| Extrusion Melt Temperature, Optimum | 200 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 10°C/min |
| 3. FMVSS 302 |
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