PP‑R LG Chem M910
PP‑R LG Chem M910 Resin
Material Introduction: PP‑R LG Chem M910 is random‑copolymer polypropylene. Featured with excellent long‑term heat‑resistance & pressure‑resistance and high impact strength, it is mainly used for pipe manufacturing, and also available for injection‑molding applications.
Main Applications
Pipe manufacturing: core application for building cold‑hot‑water transmission systems, including domestic cold‑hot‑water pipelines and central heating systems. Finished products are non‑toxic & sanitary, corrosion‑resistant, anti‑scaling, long‑service‑life, thermal‑insulation energy‑saving and easy for installation.
Injection‑molded articles: besides pipe extrusion, suitable for general mechanical parts, corrosion‑resistant components and insulating parts.
Performance Parameters
| Performance Category | Test Item | Test Condition | Test Standard | Test Data | Unit | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Density | ‑ | ASTM D‑792 | 0.900 | g/cm³ | Typical PP‑R density. |
| Melt Flow Rate (MFR) | ‑ | ASTM D‑1238 | 0.33 | g/10min | Low‑flow grade oriented for pipe extrusion. | |
| Mechanical Properties | Tensile Yield Strength | ‑ | ASTM D‑638 | 270 | kj/m² | Note: Unit may be MPa, subject to supplier official datasheet. |
| Elongation at Break | ‑ | ASTM D‑638 | ＞500 | % | Excellent toughness and ductility. | |
| Flexural Modulus | ‑ | ASTM D‑790A | 11 | kj/m² | Note: Unit may be MPa, subject to supplier official datasheet. | |
| Notched IZOD Impact Strength | ‑ | ASTM D‑256 | ＞50 | kg·cm/cm | Good notch impact performance. | |
| Gardner Impact Strength | ‑ | ASTM D‑3029GC | ＞250 | kg·cm | Multi‑axial impact resistance. | |
| Rockwell Hardness | R‑scale | ASTM D‑785 | 80 | ‑ | Surface hardness index. | |
| Yield Elongation | ‑ | ASTM D‑638 | 10 | % | Deformation at yield point. | |
| Thermal Properties | Heat‑Distortion Temperature(HDT) | ‑ | ASTM D‑648 | 112 | ℃ | Heat‑distortion reference temperature. |
| Vicat Softening Point | ‑ | ASTM D‑1525B | 150 | ℃ | Vicat softening temperature. | |
| Other Properties | Molding Shrinkage (MD/TD) | MD/TD | ASTM D‑955 | 1.5‑1.8 | % | Reference for mold design and dimensional compensation. |
Injection‑Molding Process Parameters
- Barrel temperature：160
300℃（from feed zone to nozzle），typical melt temperature 220280℃。 - Mold temperature：20‑70℃. Higher mold temperature improves surface gloss and dimensional stability.
- Injection pressure：80‑140 MPa（800‑1400 bar）, avoid excessive pressure; up to 180 MPa（1800 bar） for thin‑wall packaging containers.
- Holding pressure：30%‑60% of injection pressure.
- Back pressure：5‑20 MPa（50‑200 bar）.
- Injection speed：high speed for thin‑wall packaging containers; medium speed for other plastic products.
- Screw speed：high rotational speed with linear velocity up to 1.3 m/s is permitted, ensure plasticization finished before cooling cycle ends.
- Drying treatment：pre‑drying unnecessary under good storage; dry at 80℃ for 1 h under poor storage condition.
Disclaimer: All above data is for reference only.
