| About |
|---|
| White pigmented polyether ether ketone for dental applications VESTAKEEP® DC4420 R is a white pigmented polyether ether ketone (PEEK) grade rod stock that is especially designed for removable and fixed dentures, crowns and bridges. For VESTAKEEP® DC4420 R, biocompatibility has been tested according to ISO 10993-1 recommendations for permanent mucous membrane contact. The compound composition is optimised for high biocompatibility and superior mechanical, thermal and chemical resistance.&& |
| Product Description | |
|---|---|
| Supplier | Evonik |
| Generic | PEEK |
| Material Status | Commercial: Active |
| Features | Biocompatible,Heat Resistance, Good,Solvent resistance |
| Availabilitys | North America,Europe |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.51 | g/cm³ | ISO 1183 |
| Water absorption rate | |||
| Saturation, 23 ℃ | 0.40 | % | ISO 62 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 5100 | MPa | ISO 527-2 |
| tensile strength | |||
| yield | 110 | MPa | ISO 527-2 |
| Tensile strain | |||
| yield | 4.2 | % | |
| fracture | > 10 | % | |
| Bending modulus | 4700 | MPa | ISO 178 |
| bending strength | 178 | MPa | ISO 178 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃ | 5.4 | kJ/m² | ISO 180 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | |||
| 0.45 MPa, unannealed | 210 | ℃ | ISO 75-2/B |
| 1.8 MPa, unannealed | 155 | ℃ | ISO 75-2/A |
| Vicat Softening Temp | |||
| — | 335 | ℃ | ISO 306/A |
| — | 305 | ℃ | ISO 306/B |
| Melting temperature | 340 | ℃ | ISO 11357-3 |
| Linear coefficient of thermal expansion | |||
| MD：23~55℃ | 4.5E-5 | 1/℃ | ISO 11359-2 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 2nd heating |
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