PP Daelim EP300R Resin
PP Daelim EP300R Resin
Material Introduction: PP Daelim EP300R is high‑impact block‑copolymer polypropylene. It delivers excellent low‑temperature impact resistance, favorable rigidity and low‑warpage performance, widely applied in multiple injection‑molding fields.
Main Applications
Home appliances: washing‑machine inner drums, electrical appliances and related components.
Thin‑wall packaging: thin‑wall packaging products.
Daily‑use articles: household utensils and containers.
Electrical & electronic components: electronic and electrical parts.
Performance Parameters
| Performance Category | Test Item | Test Condition | Reference Value | Unit | Reference Standard | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Melt Flow Rate(MFR) | 230℃/2.16kg | 30 | g/10 min | ASTM D‑1238L | High‑flow injection‑molding copolymer PP. |
| Density | ‑ | 0.9 | g/cm³ | ASTM D‑1505 | Typical PP copolymer density. | |
| Mechanical Properties | Tensile Strength | ‑ | 240(≈23.5 MPa) | kg/cm² or MPa | ASTM D‑638 | Unit conversion marked. |
| Flexural Strength | ‑ | 10500(≈1030 MPa) | kg/cm² or MPa | ASTM D‑790 | ‑ | |
| Elongation at Break | ‑ | 5 | % | ASTM D‑638 | ‑ | |
| Izod Notched Impact Strength | 23℃ | 13 | kg·cm/cm | ASTM D‑256 | Room‑temperature impact performance. | |
| Izod Notched Impact Strength | -20℃ | 5 | kg·cm/cm | ASTM D‑256 | Low‑temperature impact resistance. | |
| Rockwell Hardness | R‑scale | 85 | ‑ | ASTM D‑785 | Surface hardness. | |
| Thermal Properties | Vicat Softening Point | ‑ | 150 | ℃ | ASTM D‑1525 | Heat‑resistance indicator. |
Injection‑Molding Process Parameters
| Process Item | Suggested Range / Description | Remarks |
|---|---|---|
| Drying treatment | Generally unnecessary; dry at 80℃ for 1‑2 h under poor storage condition | PP low‑moisture‑absorption feature. |
| Barrel rear zone(feed section) | 160‑200℃ | Prevent 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 will cause warpage. |
| Injection pressure | 80‑140 MPa(800‑1400 bar) | Higher 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 injection required for thin‑wall packaging containers. | ‑ |
| Screw speed | High screw speed(linear velocity 1.3 m/s) is permitted | Complete plasticization before cooling phase finishes. |
Disclaimer: All above data is for reference only.
