PP‑R Yanshan Petrochemical B8101
PP‑R Yanshan Petrochemical B8101 Resin
Material Introduction: PP‑R Yanshan Petrochemical B8101 is high‑impact random‑copolymer polypropylene pipe‑special grade, widely adopted in piping field with comprehensive outstanding performances.
Main Applications
Automotive components: bumper skeleton, door panel module, instrument panel support.
Home appliance structural parts: washing machine inner drum, air‑conditioning chassis, refrigerator drawer.
Industrial logistics: folding turnover box, large‑size pallet, logistics rack.
Tool & equipment: power‑tool housing, agricultural machinery accessories.
Performance Parameters
| Performance Category | Test Item | Test Condition | Test Standard | Typical Value | Unit | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Density | ‑ | GB 1033 | 0.9000 | g/cm³ | Typical PP‑R density. |
| Melt Flow Rate (MFR) | ‑ | GB 3682 | 0.36 | g/10 min | Low‑flow grade. | |
| Mechanical Properties | Izod Notched Impact Strength | 0℃ | GB 1843 | 65 | kJ/m² | Zero‑temperature notch impact property. |
| Izod Notched Impact Strength | -20℃ | GB 1843 | 60 | kJ/m² | Low‑temperature impact resistance. | |
| Izod Notched Impact Strength | 23℃ | GB 1843 | NB(No Break) | kJ/m² | Unbroken at room‑temperature impact test. | |
| Tensile Yield Strength | ‑ | GB 1040 | 27.0 | MPa | Tensile yield mechanical performance. | |
| Elongation at Break | ‑ | GB 1040 | 520 | % | Excellent ductility. | |
| Flexural Modulus | ‑ | GB 9341 | 880 | MPa | Material rigidity index. | |
| Flexural Strength | ‑ | GB 9341 | 22.0 | MPa | Bearing capacity under bending load. | |
| Rockwell Hardness | R‑scale | GB 9342 | 79.0 | R scale | Surface hardness. | |
| Thermal Properties | Vicat Softening Point | ‑ | BG 1633 | 154 | ℃ | Vicat softening temperature. |
| Melting Point | ‑ | ASTM D‑3418 | 165 | ℃ | Melting peak temperature. | |
| Heat‑Distortion Temperature(HDT) | ‑ | ASTM D‑648 | 78 | ℃ | Heat‑distortion reference temperature. | |
| Thermal Conductivity | ‑ | ‑ | 0.23 | W/(m·K) | Heat transfer performance. | |
| Linear Thermal Expansion Coefficient | 0‑110℃ | ‑ | 1.5×10⁻⁴ | K⁻¹ | Thermal expansion reference for mold design. |
Injection‑Molding Process Parameters
- Melt temperature：220~275℃, do not exceed 275℃.
- Mold temperature：40‑80℃, recommended 50℃. Crystallization degree is mainly determined by mold temperature.
- Injection pressure：maximum up to 1800 bar.
- 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; full‑circular runner & gate are preferred.
- All gate types are applicable; typical gate diameter 1‑1.5 mm, minimum 0.7 mm.
- For edge gate: minimum gate depth ≥ 1/2 part wall‑thickness; minimum gate width ≥ 2× part wall‑thickness.
- Hot‑runner system is fully compatible for PP.
Disclaimer: All above data is for reference only.
