PP Shenhua Ningmei 1100N Resin
PP Shenhua Ningmei 1100N Resin
Material Introduction: PP Shenhua Ningmei 1100N is injection‑molding homopolymer polypropylene. It features good flowability, balanced mechanical properties and stable molding performance.
Main Applications
Daily‑use articles: various containers, packaging materials, plastic bottles, food boxes.
Home‑appliance accessories: small household‑appliance parts, TV housings, washing‑machine inner‑tank components.
Automotive parts: automotive interior parts, instrument panels, door interior panels.
Other applications: furniture, medical devices (disposable medical supplies).
Performance Parameters
| Performance Category | Test Item | Test Condition | Specified / Tested Value | Unit | Reference Standard | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Melt Mass‑Flow Rate(MFR) | 230℃/2.16kg | 12.0±3.6 (tested:12.8) | g/10 min | GB/T 3682‑2000 | Homopolymer PP flow index. |
| Isotactic Index | ‑ | ≥95.0 (tested:98.5) | % | GB/T 2412‑2008 | ‑ | |
| Pellet Ash Content(mass fraction) | ‑ | ≤500 (tested:253) | mg/kg | GB/T 9345.1‑2008 | ‑ | |
| Mechanical Properties | Tensile Yield Stress | ‑ | ≥29 (tested:35.8) | MPa | GB/T 1040.2‑2006 | ‑ |
| Flexural Modulus | ‑ | ≥1000 (tested:1280) | MPa | GB/T 9341‑2008 | ‑ | |
| Charpy Notched Impact Strength | 23℃ | ≥1.0 (tested:2.0) | kJ/m² | GB/T 1043.1‑2008 | Room‑temperature notched impact. | |
| Thermal Properties | Heat‑Distortion Temperature(HDT) | 0.45MPa, non‑annealed | 79.1 | ℃ | GB/T 1634.2‑2004 | Low‑load heat resistance. |
| Molding Shrinkage | ‑ | 1.2 | % | GB/T 17037.4‑2003 | Mold‑design reference. | |
| Other Properties | Yellow Index | ‑ | ≤4 (tested:‑1.6) | ‑ | HG/T 3862‑2006 | Color‑stability index. |
| Cleanness(colored particle) | ‑ | 0 | pcs/kg | SH/T 1541‑2006 | Zero colored‑particle requirement. | |
| Cleanness(black particle) | ‑ | 0 | pcs/kg | SH/T 1541‑2006 | Zero black‑particle requirement. |
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 brings warpage risk. |
| 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 approx. 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.
