| About |
|---|
| Product Description Phenolic moulding compound, glass fibre-reinforced and inorganically filled, elasticized. Very good heat resistance, very good mechanical properties, reduced mould shrinkage and post-shrinkage, good chemical resistance. Application Areas Grinding wheels&& |
| Product Description | |
|---|---|
| Generic | 酚醛树脂 |
| Material Status | Commercial: Active |
| Features | Low contractility,Heat Resistance, Good,Solvent resistance |
| Availabilitys | Africa & Middle East ,North America,Latin America,Asia Pacific,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.62 | g/cm³ | ISO 1183 |
| Apparent density | 0.65 | g/cm³ | ISO 60 |
| Shrinkage rate | 0.25 | % | ISO 2577 |
| Water absorption rate | |||
| 23℃，24hr | 15.0 | mg | ISO 62 |
| Post contraction | 0.50 | % | ISO 2577 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 9000 | MPa | ISO 527-1-2 |
| tensile strength | 65.0 | MPa | ISO 527-2/5 |
| Bending modulus | 11000 | MPa | ISO 178 |
| bending strength | 135 | MPa | ISO 178 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | |||
| 23℃ | 3.5 | kJ/m² | ISO 179/1eA |
| Charpy Unnotch Impact strength | |||
| 23℃ | 12 | kJ/m² | ISO 179/1eU |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 8.0 MPa, unannealed | 165 | ℃ | ISO 75-2/C |
| Electrical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Surface resistivity | 1.0E+10 | ohms | IEC 60093 |
| Volume resistivity | 1.0E+11 | ohms·cm | IEC 60093 |
| Dielectric strength | |||
| 1 mm | 30 | kV/mm | IEC 60243-1 |
| Relative permittivity | |||
| 100 Hz | 5.50 | IEC 60250 | |
| Dissipation factor | |||
| 100 Hz | 0.10 | IEC 60250 |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Compression molding pressure | > 15.0 | MPa | |
| Compression molding temperature | 160 to 190 | ℃ |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Barrel rear temperature | 60 to 75 | °C | |
| Nozzle temperature | 80 to 100 | °C | |
| Processing (melt) temperature | 80 to 100 | °C | |
| Mold temperature | 160 to 190 | °C | |
| Injection pressure | > 15.0 | MPa | |
| Back pressure | 0.500 to 2.00 | MPa | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. Injection |
| 3. 0.079 in/min |
| 4. short term, electrode layout P25mm/P25mm in transformer oil equivalent to IEC 60296 |
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