PP Shanghai Petrochemical M700R Resin
PP Shanghai Petrochemical M700R Resin
Material Introduction: PP Shanghai Petrochemical M700R is injection‑molding grade block‑copolymer polypropylene. Featuring good impact resistance, heat resistance and chemical stability, it is widely applied in automotive, home‑appliance and other industries.
Main Applications
Automotive industry: automotive battery housings, instrument panel frames, door‑panel interior parts.
Home appliances: washing‑machine inner drums, air‑conditioner housings, fan blades, microwave‑oven supports.
Industrial products: industrial containers, pallets and turnover boxes.
Performance Parameters
| Performance Category | Test Item | Test Condition | Reference Value | Unit | Reference Standard | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Melt Flow Rate(MFR) | 230℃/2.16kg | 5.2‑8.8 or 7.0±1.8 | g/10 min | ISO 1133 | Medium‑flow block‑copolymer PP for injection molding. |
| Mechanical Properties | Tensile Yield Strength | ‑ | 24.5‑31 | MPa | ASTM D638 | Tensile yield property. |
| Flexural Modulus | ‑ | ≥1100 | MPa | ASTM D790 | High‑rigidity grade. | |
| Izod Impact Strength | 23℃ | ≥15(notched),＞30(unnotched) | J/m | ASTM D256 | Impact performance. | |
| Rockwell Hardness | ‑ | 84 | R scale | ASTM D785 | Surface hardness. | |
| Thermal Properties | Heat‑Distortion Temperature(HDT) | ‑ | To be confirmed | ℃ | ‑ | Data pending. |
| Vicat Softening Temperature | ‑ | ≥150 | ℃ | ASTM D1525 | Excellent heat‑resistance. | |
| Brittleness Temperature | ‑ | ＜‑32 | ℃ | ASTM D746 | Good low‑temperature toughness. | |
| Other Properties | Yellow Index | ‑ | ≤4 | ‑ | ASTM D1925 | Color‑stability indicator. |
| Ash content | ‑ | ≤0.03 | % | ISO 3451‑1 | Low‑ash formulation. |
Injection‑Molding Process Parameters
| Process Item | Suggested Range / Description | Remarks |
|---|---|---|
| Drying treatment | Generally unnecessary; dry at 70‑80℃ for 2‑3 h if damp | 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 | 30‑60℃ | Crystallization depends largely on mold temperature. Low temperature: poor surface, weld‑line and flow‑mark risks; high temperature brings warpage risk. |
| Injection pressure | Adjust according to practical conditions | Higher pressure for thin‑wall or complex‑structure parts. |
| Injection speed | Adjust according to practical conditions | High‑speed injection is required for thin‑wall packaging containers. |
| Holding pressure | Adjust according to practical conditions | Prevent sink mark and excessive shrinkage. |
Disclaimer: All above data is for reference only.
