PP Formosa K8009
PP Formosa Chemicals & Fibre K8009（PPB‑M09）Resin
Material Introduction: PP Formosa Chemicals & Fibre K8009 (PPB‑M09) is block‑copolymer polypropylene with high flowability and high‑impact performance.
Main Applications
Automotive industry: auto parts, battery boxes, motorcycle components.
Home appliances: electrical spare parts and household appliance components.
Daily‑use & industrial goods: office furniture, general‑purpose packaging and containers.
Other fields: FDA 21 CFR 177.1520 compliant, available for food‑contact applications.
Performance Parameters
| Performance Category | Test Item | Test Condition | Reference Value | Unit | Reference Standard | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Melt Flow Rate(MFR) | 230℃/2.16kg | 8.5‑9.0 | g/10 min | ASTM D1238, ISO 1133 | Medium‑high‑flow impact‑copolymer PP. |
| Density | 23℃ | 0.90 | g/cm³ | ASTM D792, ISO 1183 | Typical PP density. | |
| Molding Shrinkage | 23℃ | 1.4‑1.8 | % | FCFC Method, ASTM D955 | Mold‑design compensation reference. | |
| Mechanical Properties | Tensile Yield Strength | 23℃ | 22.6‑26 (230 kg/cm²) | MPa(kg/cm²) | ASTM D638, ISO 527 | Tensile yield property. |
| Flexural Modulus | 23℃ | 1030‑1100 (9500‑11000 kg/cm²) | MPa(kg/cm²) | ASTM D790, ISO 178 | Rigidity index. | |
| Elongation at Break | 23℃ | ＞200 | % | ASTM D638, ISO 527 | Excellent ductility. | |
| Izod Notched Impact Strength | 23℃,1/8" thickness | 40 kg·cm/cm or 73 kJ/m² | kg·cm/cm / kJ/m² | ASTM D256, ISO 180 | Excellent room‑temperature impact toughness. | |
| Izod Notched Impact Strength | -20℃,4 mm | 7.4 kg·cm/cm, kJ/m² pending | kg·cm/cm | ASTM D256, ISO 180 | Low‑temperature impact data partial pending. | |
| Rockwell Hardness | R‑scale,23℃ | 75‑85 | R scale | ASTM D785, ISO 2039‑2 | Surface hardness. | |
| Thermal Properties | Heat‑Distortion Temperature(HDT) | 0.45MPa, non‑annealed,1/4" thickness | 95‑110 | ℃ | ASTM D648, ISO 75 | Good heat‑resistance performance. |
| Other Properties | Flame retardant rating | 1.5 mm | HB | ‑ | UL 94 | General‑purpose non‑flame‑retardant grade. |
| FDA Compliance | ‑ | Compliant with FDA 21 CFR 177.1520 | ‑ | ‑ | Food‑contact approval. |
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) | 180‑200℃ | Prevent thermal degradation. |
| Barrel middle zone(compression section) | 200‑220℃ | ‑ |
| Barrel front zone(metering section) | 210‑230℃ | ‑ |
| Nozzle temperature | 210‑230℃ | ‑ |
| Mold temperature | 50‑90℃ | Crystallization depends largely on mold temperature. Low temperature: poor surface, weld‑line and flow‑mark risks; high temperature causes warpage. |
| Injection pressure | 70‑120 MPa(700‑1200 bar), max 1500‑1800 bar | Raise pressure for thin‑wall or complex‑structure parts; high flowability allows appropriately lower injection pressure. |
| Holding pressure | 40%‑60% or 80% of injection pressure | Prevent sink mark and excessive shrinkage; holding time accounts for ~30% of cycle time. |
| Injection speed | High‑speed injection preferred | Reduce internal stress and deformation; may cause bubbles and flow marks on partial molds. |
| Screw speed | Medium‑to‑high speed | Avoid excessive shear heat leading to material degradation. |
| Runner & gate | Runner diameter:4‑7 mm. Pin‑point gate:length 1‑1.5 mm, min diameter 0.7 mm. Edge gate:short length (~0.7 mm), depth=1/2 wall‑thickness, width=2×wall‑thickness. Mold venting: vent depth 0.025‑0.038 mm, width 1.5 mm for good exhaust. |
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Disclaimer: All above data is for reference only.
