| About |
|---|
| Xydar® M-345 liquid crystal polymer (LCP) is a 45% mineral reinforced injection molding grade developed for electrical/electronic applications utilizing surface mount technology. The material can fill very thin walls over long flow lengths. In addition to low warpage, it exhibits good strength and stiffness (even at elevated temperatures), low coefficient of thermal expansion, high heat deflection temperature, inherent flame resistance and good chemical and weathering resistance. Natural: M-345 NT Black: M-345 BK&& |
| Product Description | |
|---|---|
| Supplier | ENEOS |
| Generic | 液态聚合物 |
| Material Status | Commercial: Active |
| Features | Low warping,Flame Characteristics,Excellent Processability,Weather resistance is good,Good Rigidity,Solvent resistance |
| Availabilitys | Europe,North America,Asia Pacific |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.80 | g/cm³ | ISO 1183 |
| Ash Content | 45 | % | |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | |||
| string | 8200 | MPa | ISO 527-2 |
| tensile strength | |||
| fracture | 80.0 | MPa | ISO 527-2 |
| Tensile strain | |||
| fracture | 2.5 | % | ISO 527-2 |
| Bending modulus | |||
| string | 9700 | MPa | ISO 178 |
| bending strength | |||
| fracture | 87.0 | MPa | ISO 178 |
| Fracture bending strain | 3.0 | % | ISO 178 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Charpy Notched Impact Strength | |||
| Complete fracture | 5.8 | kJ/m² | ISO 179 |
| Charpy Unnotch Impact strength | |||
| Complete fracture | 36 | kJ/m² | ISO 179 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 281 | ℃ | ISO 75-2/B |
| 1.8 MPa, unannealed | 237 | ℃ | ISO 75-2/A |
| Process Conditions | |||
|---|---|---|---|
| Injection | Nominal value | Unit | Test method |
| drying temperature | 150 | °C | |
| Drying time | 6.0 to 8.0 | hr | |
| Processing (melt) temperature | 340 to 370 | °C | |
| Mold temperature | 70 to 160 | °C | |
| Locking force | 2.8 to 5.5 | kN/cm² | |
| Screw length to diameter ratio | 20.0 : 1.0 to 24.0 : 1.0 | ||
| Screw compression ratio | 2.5:1.0 to 3.0:1.0 | ||
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 0.05% to 0.25% |
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