| About |
|---|
| STYRON™ 668 is a General Purpose Polystyrene material. It is available in North America for injection molding. Important attributes of STYRON™ 668 are: Flame Rated Food Contact Acceptable Good Toughness Heat Resistant Typical applications include: Food Contact Applications Packaging&& |
| Product Description | |
|---|---|
| Supplier | Trinseo |
| Generic | PS (GPPS) |
| Material Status | Commercial: Active |
| Features | Good flexibility,Good liquidity,Food contact compliance,High Heat Resistance,HB |
| Availabilitys | North America |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| PHYSICAL | Nominal value | Unit | Test method |
| Density | 1.04 | g/cm³ | ASTM D792 |
| Melt Flow Rate | |||
| 200℃，5.0kg | 5.6 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD | 0.40 to 0.80 | % | ASTM D955 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23 ℃, injection molding | 21 | J/m | ASTM D256 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648 | ||
| 0.45 MPa, unannealed | 94.0 | ℃ | ASTM D648 |
| 1.8 MPa, unannealed | 86.0 | ℃ | ASTM D648 |
| Vicat Softening Temp | 103 | ℃ | ASTM D1525 |
| Linear coefficient of thermal expansion | |||
| MD | 9.0E-5 | 1/℃ | ASTM D696 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame retardant level | HB | UL 94 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Rockwell hardness | |||
| Level L | 107 | ASTM D785 | |
| Tensile modulus | |||
| injection molding | 3170 | MPa | ASTM D638 |
| tensile strength | ASTM D638 | ||
| Fracture, injection molding | 50.0 | MPa | ASTM D638 |
| injection molding | 50.0 | MPa | ASTM D638 |
| Tensile strain | |||
| Fracture, injection molding | 3.0 | % | ASTM D638 |
| Bending modulus | |||
| injection molding | 3480 | MPa | ASTM D790 |
| bending strength | |||
| injection molding | 66.0 | MPa | ASTM D790 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Extrusion | Nominal value | Unit | Test method |
| Barrel rear temperature | 218 to 249 | °C | |
| Barrel middle temperature | 218 to 249 | °C | |
| Barrel front temperature | 199 to 213 | °C | |
| Nozzle temperature | 213 to 243 | °C | |
| Mold temperature | 16 to 66 | °C | |
| Injection speed | 快速 | ||
| Back pressure | 0.200 to 1.20 | MPa | |
| Cushion | 6.35 | mm | |
| Barrel 1 zone temperature | 177 to 193 | °C | |
| Barrel 2 zone temperature | 182 to 204 | °C | |
| Barrel 3 zone temperature | 188 to 210 | °C | |
| Barrel 4 zone temperature | 199 to 216 | °C | |
| Barrel 5 zone temperature | 204 to 221 | °C | |
| Connector temperature | 193 to 232 | °C | |
| Melt temperature | 193 to 232 | °C | |
| Nozzle temperature | 199 to 232 | °C | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 【 Disclaimer 】 Guangzhou Soliao Information Technology Co., Ltd. reserves all rights. The information in this data table was obtained from the manufacturer of the material on soliao.com. Soliao.com makes every effort to ensure the accuracy of this data. However, the search company does not assume any responsibility for the uncertainty and consequences caused to users by these data values and suggestions, and strongly recommends verifying the data values with the material supplier before the final selection of materials. |