CNPC RP340R Medical PP

cnpc kunlun pp 25kg package

CNPC RP340R Medical Grade Polypropylene (PP)

CNPC RP340R is a high-performance, medical-grade polypropylene (PP) random copolymer. It is a nucleated resin specially designed for high-precision injection molding and injection stretch blow molding (ISBM) applications. For Disposable Sterile Syringe Barrels.

Associated Documents

TDS - Data Sheet

Typical property data

Physical Properties
  • Melt Flow Rate: 34 g/10 min (ISO 1133 / GB/T 3682, 230°C/2.16 kg)

  • Density: 0.905 g/cm³ (ISO 1183 / GB/T 1033)

  • Ash Content: ≤0.03% (ISO 3451 / GB/T 9345.1)

  • Molding Shrinkage: 1.2–1.8% (ISO 294-4 / GB/T 17037.4)

Mechanical Properties
  • Tensile Stress at Yield: ≥25.0 MPa (ISO 527-2 / GB/T 1040.2)

  • Tensile Strain at Break: ≥500% (ISO 527-2 / GB/T 1040.2)

  • Flexural Modulus: ≥1000 MPa (ISO 178 / GB/T 9341)

  • Izod Notched Impact Strength, 23°C: ≥4.0 kJ/m² (ISO 180 / GB/T 1843)

Thermal Properties
  • Vicat Softening Temperature: 130°C (ISO 306 / GB/T 1633)

  • Melting Temperature: 145–155°C (DSC)

Optical Properties
  • Haze: ≤10% (ASTM D1003 / GB/T 2410)

Processing Parameters
  • Melt Temperature: 200–250°C

  • Mold Temperature: 20–50°C

  • Injection Pressure: 70–120 MPa

  • Holding Pressure: 30–60 MPa

  • Screw Speed: 40–80 rpm

  • Drying: Not required; if humid, dry at 60–80°C for 1–2 h

Use & Applications

  • Disposable Sterile Syringe Barrels (5 mL/10 mL/20 mL)
cnpc kunlun pp 25kg package

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