| About |
|---|
| JPGPPSI is a medium heat resistance, medium flow, general purpose polystyrene. It is recommended in applications where a specific balance of flow and tensile properties are important. Its unique additive package makes it a good candidate for some medical and pharmaceutical applications. JPGPPSI has also been used in packaging/disposables applications.&& |
| Product Description | |
|---|---|
| Generic | PS (GPPS) |
| Material Status | Commercial: Active |
| Features | 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 | 8.0 | g/10min | ASTM D1238 |
| Shrinkage rate | |||
| MD | 0.30 to 0.70 | % | ASTM D955 |
| MECHANICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Tensile modulus | 2920 | MPa | ASTM D638 |
| tensile strength | ASTM D638 | ||
| yield | 44.8 | MPa | ASTM D638 |
| fracture | 44.8 | MPa | ASTM D638 |
| Tensile strain | |||
| fracture | 1.6 | % | ASTM D638 |
| Bending modulus | 3150 | MPa | ASTM D790 |
| bending strength | 89.6 | MPa | ASTM D790 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Impact strength of cantilever beam notch | |||
| 23℃，3.2mm | 16 | J/m | ASTM D256 |
| Drop hammer impact | |||
| 23℃ | 0.113 | J | ASTM D3029 |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Hot deformation temperature | ASTM D648 | ||
| 0.45 MPa, unannealed, 3.2 mm | 85.6 | ℃ | ASTM D648 |
| 1.8 MPa, unannealed, 3.2 mm | 77.2 | ℃ | ASTM D648 |
| Vicat Softening Temp | 99.4 | ℃ | ASTM D1525 |
| Linear coefficient of thermal expansion | |||
| MD：-40~82℃ | 9.0E-5 | 1/℃ | ASTM D696 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| 1.50 mm, all colors | HB | UL 94 |
| optical performance | Nominal value | Unit | Test method |
|---|---|---|---|
| Refractive index | 1.590 | ASTM D542 | |
| Transmittance | 90.0 | % | ASTM D1003 |
| Haze | 1.0 | % | ASTM D1003 |
| Process Conditions | |||
|---|---|---|---|
| injection | Nominal value | Unit | Test method |
| Barrel rear temperature | 177 to 232 | °C | |
| Barrel front temperature | 191 to 260 | °C | |
| Mold temperature | 21 to 66 | °C | |
| Injection pressure | 34.5 to 276 | MPa | |
| Back pressure | 0.0689 to 3.45 | MPa | |
| Clamping force | 2.8 to 5.5 | kN/cm² | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
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