POLYREX® PH-88 Polystyrene High Impact Extrusion Grade
POLYREX PH-88 is a high-impact HIPS resin engineered for durability and heat resistance. Ideal for demanding applications like electronics housings, toys, and daily essentials, it combines superior impact strength (11 KJ/m² at 23°C) with a Vicat softening temperature of 96°C, ensuring reliability under stress and heat.
- Character: Heat-resistant, high impact strength
Key technical data (ISO)
- Impact Strength: 11 KJ/m² (Izod, 23°C) | 6.5 KJ/m² (Charpy, -30°C)
- Thermal Stability: Vicat Softening Temp. = 96°C | Heat Distortion Temp. = 89°C (annealed)
- Processability: Melt Flow Index = 5.5 ml/10 min | Mold Shrinkage = 0.4–0.7%
- Safety Compliance: UL 94 HB flammability rating (1.5mm) | PLC 3 electrical properties
- Mechanical Performance: Tensile Strength = 26 MPa | Flexural Modulus = 2.1 GPa
Applications
- Toys: Withstands drops and impacts (e.g., action figures, outdoor play equipment).
- Electronics: Durable shells for TVs, printers, and small appliances needing heat resistance.
- Daily Essentials: Lightweight yet sturdy containers, kitchenware, and cosmetic packaging.
Polyrex® PH-88 Datasheet
| High Impact HIPS POLYREX® PH-88 Product Description: High impact | ||||
| Properties | ISO Test Method | Test Condition | Unit | PH-88 |
| Melt Flow Index | 1133 | 200℃×5KG | ml/10 min | 5.5 |
| Mass Density | 1183 | 23 ℃ | g/cm3 | 1.03 |
| Tensile Strength | 527 | 50 mm/min, yield | MPa | 26 |
| 50 mm/min, break | MPa | 24 | ||
| Tensile Elongation | 527 | 50 mm/min | % | 50 |
| Flexural Strength | 178 | 2 mm/min | MPa | 37 |
| Flexural Modulus | 2 mm/min | GPa | 2.1 | |
| Izod Impact Strength | 180/1A | 23℃, Notched | KJ/m2 | 11 |
| -30℃, Notched | KJ/m2 | 6 | ||
| Charpy Impact Strength | 179 | 23℃, Notched | KJ/m2 | 11 |
| -30℃, Notched | KJ/m2 | 6.5 | ||
| Vicat Softening Temp. | 306 | 50℃/hr;1KG | ℃ | 96 |
| 50℃/hr;5KG | ℃ | 90 | ||
| Heat Distortion Temp. | 75/A | 1.8MPa, unannealed | ℃ | 74 |
| 1.8MPa, annealed | ℃ | 89 | ||
| Coefficient of Linear Thermal Expansion | 11359 | – | – | 4~6×10-5 |
| Flammability | – | UL-94 | – | 1.5mm HB |
| Mold Shrinkage | 294-4 | – | % | 0.4~0.7 |
| Symbol | 1043 | – | – | >PS-HI< |
| March 11, 2024 Notes：These are typical properties only and are not to be construed as specifications. Users should confirm results by their own test | ||||
Polyrex® PH-88 UL Product iQ
| ACRYREX® PH-88 | UL Product iQ | ||
| File Number: E56070 | Yellow Card™ | Polystyrene (PS) “POLYREX”, furnished as pellets or powder |
| FLAMMABILITY PROPERTIES | VALUE | TEST METHOD |
| Flammability | ANSI/UL 94 | |
| 1.0 mm, Color: ALL | HB | |
| 1.5 mm, Color: ALL | HB | |
| 3.0 mm, Color: ALL | HB | |
| ISO/IEC FLAMMABILITY PROPERTIES | VALUE | TEST METHOD |
| Flammability | IEC 60695-11-10 | |
| 1.0 mm, Color: ALL | HB75 | |
| 1.5 mm, Color: ALL | HB75 | |
| 3.0 mm, Color: ALL | HB40 | |
| ELECTRICAL PROPERTIES | VALUE | TEST METHOD |
| Hot-wire Ignition (HWI) | UL 746A | |
| 1.5 mm | PLC 3 | |
| 3.0 mm | PLC 3 | |
| High Amp Arc Ignition (HAI) | UL 746A | |
| 1.5 mm | PLC 3 | |
| 3.0 mm | PLC 0 | |
| High Voltage Arc Tracking Rate (HVTR) | PLC 0 | |
| High Voltage, Low Current Arc Resistance | PLC 6 | |
| THERMAL PROPERTIES | VALUE | TEST METHOD |
| Relative Thermal Index – Electrical Strength | UL 746B | |
| 1.0 mm | 50 °C | |
| 1.5 mm | 50 °C | |
| 3.0 mm | 50 °C | |
| Relative Thermal Index – Mechanical Impact | UL 746B | |
| 1.0 mm | 50 °C | |
| 1.5 mm | 50 °C | |
| 3.0 mm | 50 °C | |
| Relative Thermal Index – Mechanical Strength | UL 746B | |
| 1.0 mm | 50 °C | |
| 1.5 mm | 50 °C | |
| 3.0 mm | 50 °C | |
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