PP Shanghai Petrochemical M180R
PP Shanghai Petrochemical M180R Resin
Material Introduction: PP Shanghai Petrochemical M180R is block‑copolymer polypropylene. It features high‑impact performance, good low‑temperature resistance and favorable flowability for multi‑field applications.
Main Applications
Industrial packaging & logistics: turnover boxes, heavy‑duty packaging containers such as paint buckets and bulk containers.
Automotive components: various automobile parts.
Daily‑use articles: furniture, toys, stationery, household storage containers.
Food‑contact applications: food‑grade material for food containers.
Performance Parameters
| Performance Category | Test Item | Test Condition | Reference Value | Unit | Reference Standard | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Melt Flow Rate(MFR) | 230℃/2.16kg | 1.8±1.0 or 2.0 | g/10 min | ‑ | Medium‑flow block‑PP grade. |
| Density | ‑ | 0.90‑0.91 | g/cm³ | ‑ | Typical PP density range. | |
| Yellow Index | ‑ | ≤4 | % | ‑ | Color‑stability reference. | |
| Cleanliness | ‑ | 6‑10 | pcs/kg | ‑ | Particle impurity count. | |
| Mechanical Properties | Tensile Yield Strength | ‑ | ≥21.6‑29.6 | MPa | ASTM D638 | Tensile yield performance. |
| Flexural Modulus | ‑ | ≥0.90 | GPa | ‑ | Rigidity index. | |
| Izod Notched Impact Strength | 23℃ | ≥29.5‑589 | J/m | ‑ | Room‑temperature impact resistance. | |
| Thermal Properties | Low‑temperature transition temperature | ‑ | ≥‑32 | ℃ | ‑ | Low‑temperature toughness reference. |
| Other Properties | Total ash content | ‑ | ≤0.03 | % | ‑ | ‑ |
Injection‑Molding Process Parameters
| Process Item | Suggested Range / Description | Remarks |
|---|---|---|
| Drying treatment | Generally not required; dry at 80℃ for 1‑2 h if damp due to poor storage | PP low‑moisture‑absorption property. |
| 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; temperature above 90℃ tends to cause warpage. |
| Injection pressure | 68.6‑137.2 MPa, max up to 1800 bar | Increase pressure for thin‑wall or complex‑structure parts. |
| Injection speed | High‑speed injection minimizes internal pressure; adopt low‑speed injection under higher melt temperature when surface defects occur. | ‑ |
| Runner & gate | Cold‑runner diameter:4‑7 mm. All gate types are applicable; typical gate diameter 1‑1.5 mm. For edge gate: minimum depth ≥ 1/2 wall‑thickness, minimum width ≥ 2× wall‑thickness. Hot‑runner system is fully compatible for PP. | ‑ |
Disclaimer: All above data is for reference only.
