PP Shanghai Petrochemical M800E Resin
PP Shanghai Petrochemical M800E Resin
Material Introduction: PP Shanghai Petrochemical M800E is random‑copolymer polypropylene resin. It is famous for high transparency, high gloss and excellent heat resistance. Certified for food‑contact and medical applications, it is a versatile high‑performance polymer.
Main Applications
Food‑service articles: transparent food containers such as lunch boxes and fresh‑keeping boxes.
Medical / care supplies: syringes, medical utensils requiring transparency and sterilization performance.
Translucent & transparent components: transparent parts for daily‑use goods and technical components.
Performance Parameters
| Performance Category | Test Item | Test Condition | Value / Range | Unit | Reference Standard | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Melt Flow Rate(MFR) | 230℃/2.16kg | 6.5‑12.0 (typical:8.0±2.5) | g/10 min | GB/T 3682, ASTM D1238 | Random copolymer PP |
| Mechanical Properties | Tensile Yield Strength | ‑ | ≥25.0‑27.5 | MPa | ASTM D638, GB/T 1040.2 | ‑ |
| Flexural Modulus | ‑ | ≥850‑1050 | MPa | ASTM D790, GB/T 9341 | ‑ | |
| Izod Impact Strength (unnotched) | 23℃, unnotched | ≥25‑40 | J/m | ASTM D256, GB/T 1843 | ‑ | |
| Optical Properties | Yellow Index (YI) | ‑ | ≤1.0‑3.0 | ‑ | HG/T 3862 | ‑ |
| Other Properties | Cleanness | ‑ | 6‑10 | points/kg | SH/T 1541 | ‑ |
Injection‑Molding Process Parameters
| Process Item | Suggested Range / Description | Remarks |
|---|---|---|
| Drying treatment | 80℃. Drying is unnecessary under proper storage condition. | ‑ |
| Barrel melt temperature | 220‑275℃ | Do not exceed 275℃. |
| Mold temperature | 40‑80℃，recommended 50℃ | Crystallization depends largely on mold temperature. Low temperature may cause poor surface, weld‑lines and flow‑marks; high temperature tends to bring warpage. |
| Injection pressure | 68.6‑137.2 MPa (max up to 1800 bar) | ‑ |
| Injection speed | High‑speed injection minimizes internal stress. If surface defects occur, adopt low‑speed injection at higher melt temperature. | ‑ |
| Runner & Gate | For cold‑runner system, typical runner diameter:4‑7 mm. All gate types are applicable, typical gate diameter:1‑1.5 mm. Round‑type gates and runners are preferred. Large round gates and runners are recommended to avoid sink marks. |
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Disclaimer: All above data is for reference only.
