| About |
|---|
| Tarnoform® 300 AST – inherently antistatic injection moulding grade suitable especially for applications, where combination of high mechanical and antistatic properties are required. Good antistatic properties are obtained, when moulded parts absorbs enough humidity. Should be used in humid environment.&& |
| Product Description | |
|---|---|
| Generic | Copolymer Polyformaldehyde |
| Material Status | Commercial: Active |
| Features | Antistatic property,HB |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.40 | g/cm³ | ISO 1183 |
| Melt Flow Rate | |||
| 190℃，2.16kg | 10 | g/10min | ISO 1133 |
| Melt Volume Rate | |||
| 190℃，2.16 kg | 8.50 | cm³/10min | ISO 1133 |
| Shrinkage rate | |||
| MD：2.0 mm | 2.0 | % | ISO 294-4 |
| Water absorption rate | ISO 62 | ||
| Saturation, 23 ℃ | 0.80 | % | ISO 62 |
| Equilibrium, 23 ℃, 50% RH | 0.20 | % | ISO 62 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | 6.0 | kJ/m² | ISO 179-1eA |
| Charpy Unnotch Impact strength | 90 | kJ/m² | ISO 179/1eU |
| Impact strength of cantilever beam notch | 7.0 | kJ/m² | ISO 180 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 1.8 MPa, unannealed | 110 | ℃ | ISO 75-2/A |
| Vicat Softening Temp | 145 | ℃ | ISO 306/B |
| Melting temperature | 167 | ℃ | ISO 11357-3 |
| Limit of Temperature（a few hours operation） | 100 | ℃ |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+10 | ohms | IEC 60093 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | |||
| 3.20 mm | HB | UL 94 | |
| Burning rate | < 100 | mm/min | FMVSS 302 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| ISO Type | POM-K, M-GNZ, 03-002 | ISO 1874 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Ball hardness | |||
| H358/30 | 140 | MPa | ISO 2039-1 |
| Tensile modulus | 2600 | MPa | ISO 527-1-2 |
| tensile strength | |||
| yield | 57.0 | MPa | ISO 527-2/50 |
| Tensile strain | ISO 527-2/50 | ||
| yield | 9.5 | % | ISO 527-2/50 |
| fracture | 40 | % | ISO 527-2/50 |
| Bending modulus | 2400 | MPa | ISO 178 |
| bending strength | 62.0 | MPa | ISO 178 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Drying temperature | 100 to 120 | °C | |
| Drying time | 2.0 to 4.0 | hr | |
| Recommended maximum moisture content | < 0.10 | % | |
| Proposed maximum recycled material ratio | 10 | % | |
| Processing (melt) temperature | 180 to 230 | °C | |
| Mold temperature | 60 to 120 | °C | |
| Injection pressure | 60.0 to 120 | MPa | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 0.079 in/min |
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