PP Daxie Petrochemical 2500H
PP Daxie Petrochemical 2500H Resin
Material Introduction: PP Daxie Petrochemical 2500H is impact‑copolymer polypropylene, featuring high rigidity, moderate heat resistance, good processability and safety compliance.
Main Applications
Automotive & transportation parts: components for automobiles, motorcycles and children’s vehicles; widely used for battery housings.
Daily‑use articles & industrial packaging: luggage, crates, containers, paint buckets, packing boxes and bulk containers.
Other products: toys, extruded agricultural water pipes, hollow sheets.
Performance Parameters
| Performance Category | Test Item | Test Condition | Reference Value | Unit | Reference Standard | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Melt Flow Rate(MFR) | 230℃/2.16kg | 1.9‑2.0 | g/10 min | GB/T 3682‑2000, ISO 1133 | Medium‑flow impact‑copolymer PP. |
| Density | ‑ | 0.91 | g/cm³ | ISO 1183 | Typical PP density. | |
| Mechanical Properties | Tensile Yield Strength | ‑ | 22.2 | MPa | GB/T 1040.2‑2006, ISO 527 | Tensile yield performance. |
| Flexural Modulus | ‑ | 1040‑1100 | MPa | GB/T 9341‑2000, ISO 178 | Rigidity index. | |
| Charpy Notched Impact Strength | 23℃ | To be confirmed | kJ/m² | GB/T 1043.2‑2008, ISO 179 | Room‑temperature impact data pending. | |
| Charpy Notched Impact Strength | -20℃ | 7.2 | kJ/m² | GB/T 1043.2‑2008, ISO 179 | Low‑temperature impact resistance. | |
| Rockwell Hardness | R‑scale | 81.0 | ‑ | GB/T 3398.2‑2008, ASTM D785 | Surface hardness. | |
| Thermal Properties | Heat‑Distortion Temperature(HDT) | 0.45 MPa, non‑annealed | 72.3 | ℃ | GB/T 1634‑2004, ISO 75 | Heat‑resistance reference. |
| Vicat Softening Temperature | ‑ | 148 | ℃ | ISO 306 | Vicat softening point. | |
| Other Properties | Molding shrinkage(parallel) | ‑ | 1.5 | % | GB/T 17037.4‑2003 | Mold design compensation reference. |
| Molding shrinkage(perpendicular) | ‑ | 1.6 | % | GB/T 17037.4‑2003 | ‑ | |
| Ash content | ‑ | ≤0.356(3556 mg/kg) | % | GB 9346.1‑2008 | ‑ |
Injection‑Molding Process Parameters
| Process Item | Suggested Range / Description | Remarks |
|---|---|---|
| Drying treatment | Generally unnecessary; dry at 80℃ for 1‑2 h if damp | PP low‑moisture‑absorption characteristic. |
| Barrel rear zone(feed section) | 160‑200℃ | Avoid thermal degradation. |
| Barrel middle zone(compression section) | 180‑220℃ | ‑ |
| Barrel front zone(metering section) | 200‑240℃ | ‑ |
| Nozzle temperature | 200‑240℃ | ‑ |
| Mold temperature | 40‑80℃, recommended 50℃ | Crystallization mainly determined by mold temperature. Low temperature: poor surface, weld‑line and flow‑mark risks; high temperature causes warpage. |
| Injection pressure | 80‑140 MPa(800‑1400 bar) | Increase pressure for thin‑wall or complex‑structure parts. |
| Holding pressure | 30%‑60% of injection pressure | Prevent sink mark and excessive shrinkage; holding time accounts for ~30% of cycle time. |
| Injection speed | Medium speed; high‑speed for thin‑wall packaging containers | ‑ |
| Screw speed | High screw speed(linear velocity 1.3 m/s) is permitted | Complete plasticization before cooling phase ends. |
Disclaimer: All above data is for reference only.
