Yuncon® N270 POM
Plastic Granules
Yuncon® N270 High-flow Grade POM Pellets Acetal Copolymer
Yuncon® N270 is a high-flow POM copolymer for injection molding. It has an MFR of 27 g/10 min and low mold deposit. It offers 62 MPa tensile strength, low friction, good wear resistance, and stable dimensions. Suitable for fasteners, lighters, and aerosol bottle parts.
Typical property data
Physical Properties
- Density: 1.41 g/cm³ (ISO 1183)
- Melt Mass-Flow Rate, MFR: 27 g/10 min at 190°C / 2.16 kg (ISO 1133)
- Water Absorption: 0.5% after 24 hr at 23°C (ISO 62)
Mechanical Properties
- Tensile Stress at Yield: 62 MPa (ISO 527-2)
- Tensile Modulus: 2700 MPa (ISO 527-2)
- Strain at Break: 25% (ISO 527-2)
- Flexural Strength: 89 MPa (ISO 178)
- Flexural Modulus: 2550 MPa (ISO 178)
- Charpy Notched Impact Strength: 4.5 kJ/m² (ISO 179/1eA)
Thermal Properties
- Heat Deflection Temperature: 98°C at 1.8 MPa, unannealed (ISO 75)
Flame Characteristics
- UL Flame Rating: HB class (UL 94)
Injection Molding Conditions
- Material Drying Temperature: 80–90°C
- Material Drying Time: 3–4 hr
- Cylinder Temperature — Nozzle: 180–210°C
- Cylinder Temperature — Front Section: 190–210°C
- Cylinder Temperature — Center Section: 170–200°C
- Cylinder Temperature — Rear Section: 160–180°C
- Melt Temperature: 180–210°C
- Mold Temperature: 60–90°C
- Mold Temperature for Precision Parts: up to 120°C
- Injection Pressure: 50–100 MPa
- Holding Pressure: 0–80 MPa
- Back Pressure: 0–0.5 MPa
- Screw Rotational Speed: 50–120 rpm
Use & Applications
- Lighters
- Aerosol bottles
- Fasteners