PP‑R Yangzi Petrochemical PPR‑M00（YPR‑503 / R503）
PP‑R Yangzi Petrochemical PPR‑M00（YPR‑503 / R503）Resin
Material Introduction: PP‑R Yangzi Petrochemical PPR‑M00 (alias YPR‑503 / R503) is random‑copolymer polypropylene pipe‑special resin. It features high impact resistance, excellent heat‑aging resistance and favorable long‑term hydrostatic strength, especially suitable for high‑demand cold‑hot‑water transmission systems.
Main Applications
Building cold‑hot‑water transmission systems: domestic cold‑hot‑water pipelines, central heating systems.
Drinkable purified‑water supply system: qualified sanitary performance for potable‑water piping.
Floor heating system: manufacturing floor‑heating pipes.
Central air‑conditioning system: refrigerant‑water pipelines for air‑conditioning.
Chemical piping system: conveyance or discharge of certain chemical media.
High‑performance multi‑layer composite pipes: base material for antibacterial pipe, UV‑resistant pipe, high‑light‑shielding pipe and other multi‑layer composite pipes.
Performance Parameters
| Performance Category | Test Item | Test Condition | Test Standard | Typical Value | Unit | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Melt Flow Rate (MFR) | 230℃/2.16kg | GB/T 3682 | 0.27‑0.30 | g/10min | Low‑flow grade for pipe extrusion. |
| Mechanical Properties | Tensile Yield Strength | ‑ | GB/T 1040 | 22.9‑23 | MPa | Tensile yield property. |
| Elongation at Break | ‑ | GB/T 1040 | 500 | % | Good ductility and toughness. | |
| Flexural Modulus | ‑ | GB/T 9341 | 629‑800 | MPa | Material rigidity index. | |
| Charpy Notched Impact Strength | 23℃ | GB/T 1043.1 | 61 | kJ/m² | Room‑temperature notch impact performance. | |
| Charpy Notched Impact Strength | -20℃ | GB/T 1043.1 | 2.8 | kJ/m² | Low‑temperature notch impact performance. | |
| Izod Notched Impact Strength | 23℃ | GB/T 1843 | 25 | kJ/m² | Cantilever‑beam impact resistance. | |
| Thermal Properties | Heat‑Distortion Temperature | ‑ | GB/T 1634.2 | 65 | ℃ | Thermal deformation reference. |
| Oxidation Induction Time(OIT) | ‑ | GB/T 19466.6 | 80.1 | min | Excellent thermal‑oxidative aging resistance for long‑term pipe service. |
Pipe Extrusion Process Parameters
- Barrel temperature: 185
205℃; adapter block 200205℃; die head 200~205℃.
Typical parameters for three‑layer co‑extrusion composite pipe:
- Inner layer: Zone1 190℃, Zone2 200℃, Zone3 200℃, Zone4 205℃, Die 205℃
- Middle layer: Zone1 195℃, Zone2 200℃, Zone3 200℃, Zone4 200℃, Adapter 200‑205℃, Die 205℃
- Outer layer: Zone1 185℃, Zone2 195℃, Zone3 200℃, Zone4 200℃, Die 200℃
- Main extruder speed: adjust according to pipe diameter & wall thickness, typical 25‑40 rpm.
- Screw torque: typical range 45%‑65%.
Injection‑Molding Process Parameters
- Barrel temperature：180
280℃，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）; up to 180 MPa for thin‑wall articles.
- Holding pressure：30%‑60% of injection pressure.
- Injection speed：medium‑high speed recommended.
Disclaimer: All above data is for reference only.
