PP‑R Hyosung R200P
PP‑R Hyosung R200P Resin
Material Introduction: PP‑R Hyosung R200P is random‑copolymer polypropylene dedicated for pipe extrusion, widely used in cold‑hot‑water piping systems.
Main Applications
Building water supply & drainage systems: cold‑hot‑water supply pipes for residences, hotels, hospitals and other buildings.
Heating systems: floor‑heating pipes, radiator connecting pipes.
Industrial fluid transmission: pipes for oil products and corrosive liquid; high‑temperature medium pipelines for chemical, pharmaceutical and food‑processing industries.
Agricultural irrigation systems: irrigation pipes for agricultural applications.
Performance Parameters
| Performance Category | Test Item | Test Condition | Reference Value | Unit | Reference Standard | Remarks & Interpretation |
|---|---|---|---|---|---|---|
| Basic Properties | Density | ‑ | 0.91 | g/cm³ | ASTM D792 | Typical PP‑R density. |
| Melt Flow Rate (MFR) | 230℃/2.16kg | 0.2‑0.25 | g/10 min | ASTM D1238 | Low‑flow pipe‑extrusion grade. | |
| Melt Flow Rate (MFR) | 190℃/5.0kg | 0.4 | g/10 min | ASTM D1238 | ‑ | |
| Mechanical Properties | Tensile Yield Strength | ‑ | 270(≈26.5 MPa) | kg/cm²(MPa) | ASTM D638 | Unit conversion note. |
| Tensile Breaking Strength | ‑ | 230(≈22.6 MPa) | kg/cm²(MPa) | ASTM D638 | ‑ | |
| Elongation at Break | ‑ | ＞400 | % | ASTM D638 | Good ductility. | |
| Flexural Modulus | ‑ | 8500(≈834 MPa) | kg/cm²(MPa) | ASTM D790 | Unit conversion note. | |
| Izod Notched Impact Strength | 23℃ | No break | kg·cm/cm | ASTM D256 | No fracture under room‑temperature impact. | |
| Izod Notched Impact Strength | 0℃ | 8 | kg·cm/cm | ASTM D256 | Zero‑temperature impact performance. | |
| Izod Notched Impact Strength | -20℃ | 3 | kg·cm/cm | ASTM D256 | Low‑temperature impact resistance. | |
| Thermal Properties | Vicat Softening Temperature | ‑ | 130 | ℃ | ASTM D1525 | ‑ |
| Melting Point | ‑ | 141 | ℃ | HS Method | Melting peak temperature. | |
| Heat‑Distortion Temperature(HDT) | ‑ | 90 | ℃ | ‑ | Thermal deformation reference. | |
| Linear Thermal Expansion Coefficient | 0‑110℃ | 1.5×10⁻⁴ | K⁻¹ | Dilatometer | Mold design reference. | |
| Other Properties | Surface Resistivity | ‑ | ＞10¹³ | Ω | HS Method | Insulation performance. |
Pipe Extrusion Process Parameters
| Process Item | Suggested Range / Description | Remarks |
|---|---|---|
| Drying treatment | 80±5℃，2‑4 h | Avoid bubble defects inside pipes. |
| Extruder barrel temperature | 180‑230℃ | Temperature rises gradually from feed zone to homogenizing zone. |
| Die & mandrel temperature | 200‑240℃ | Ensure sufficient plasticization and stable dimension. |
| Screw speed | Adjust according to pipe specification and haul‑off speed | Stable melt pressure and output required. |
Injection‑Molding Process Parameters
| Process Item | Suggested Range / Description | Remarks |
|---|---|---|
| Drying treatment | 80℃，1‑2 h | Dry only when material gets damp due to poor storage. |
| Barrel rear zone(feed section) | 180‑200℃ | Avoid over‑heating degradation. |
| Barrel middle zone(compression section) | 200‑220℃ | ‑ |
| Barrel front zone(metering section) | 210‑230℃ | ‑ |
| Nozzle temperature | 210‑230℃ | ‑ |
| Mold temperature | 40‑60℃ | Low temp：poor surface, weld‑line & flow‑mark risk; High temp：easy warpage. |
| Injection pressure | Max up to 1800 bar | ‑ |
| Injection speed | High‑speed for minimizing internal pressure; low‑speed under higher melt temp for surface defects | ‑ |
Disclaimer: All above data is for reference only.
