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Makrolon® Rx1851

Polycarbonate; MVR (300 °C/1.2 kg) 23 cm³/10 min; low viscosity; easy release

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About

Product Types

  • Polycarbonate

Material

Plastics
Medical, Transparent

General Characterization

No data available

Storage Conditions

No data available

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Applications

Injection molding; Medical devices

Typical Values

Rheological properties

Property Test Condition Value Unit Standard
Melt Volume-flow Rate (MVR) 300 °C/ 1.2 kg 23 cm³/10 min ISO 1133-1
Melt Mass-flow Rate (MFR) 300 °C/ 1.2 kg 24 g/10 min ISO 1133
Molding Shrinkage, parallel 60x60x2 mm/ 280 °C / MT 80 °C/ 500 bar 0.70 % ISO 294-4
Molding Shrinkage, normal 60x60x2 mm/ 280 °C / MT 80 °C/ 500 bar 0.70 % ISO 294-4
Molding Shrinkage, parallel / normal Value range based on general practical experience 0.50 - 0.70 % b.o. ISO 2577

Mechanical properties (23 °C/50 % r. h.)

Property Test Condition Value Unit Standard
Tensile modulus 1 mm/min 2,400 MPa ISO 527-1,-2
Yield Stress 5 mm/min > 50 MPa ISO 527-1,-2
Yield Stress 50 mm/min 65 MPa ISO 527-1,-2
Yield Strain 50 mm/min 6 % ISO 527-1,-2
Strain at Break 50 mm/min 120 % b.o. ISO 527-1,-2
Stress at Break 50 mm/min 70 MPa ISO 527-1,-2
Flexural Modulus 2 mm/min 2,400 MPa ISO 178
Flexural Strength 2 mm/min 98 MPa ISO 178
Flexural Strain at Flexural Strength 2 mm/min 6.8 % ISO 178
Flexural Stress at 3.5 % Flexural Strain 2 mm/min 76 MPa ISO 178
Izod Notched Impact Strength -30 °C/ 3 mm 12 kJ/m²
Izod Notched Impact Strength 23 °C/ 3 mm 65 kJ/m²
Izod Notched Impact Strength -30 °C/ 3 mm 12 kJ/m² ISO 21305/based on ISO 180/A
Izod Notched Impact Strength 23 °C/ 3 mm 65 kJ/m² ISO 21305/based on ISO 180/A
Puncture Impact Properties - Maximum Force -30 °C 6,200 N ISO 6603-2
Puncture Impact Properties - Maximum Force 23 °C 5,200 N ISO 6603-2
Puncture Energy -30 °C 65 J ISO 6603-2
Puncture Energy 23 °C 55 J ISO 6603-2
Ball Indentation Hardness 117 N/mm² ISO 2039-1

Thermal properties

Property Test Condition Value Unit Standard
Temperature of Deflection under Load 0.45 MPa 134 °C ISO 75-1,-2
Temperature of Deflection under Load 1.80 MPa 121 °C ISO 75-1,-2
Vicat Softening Temperature 50 N; 120 °C/h 142 °C ISO 306
Vicat Softening Temperature 50 N; 50 °C/h 141 °C ISO 306
Coefficient of Linear Thermal Expansion, parallel 23 to 55 °C 0.65 10⁻⁴/K ISO 11359-1,-2
Coefficient of Linear Thermal Expansion, normal 23 to 55 °C 0.65 10⁻⁴/K ISO 11359-1,-2
Oxygen Index Method A 27 % ISO 4589-2
Thermal Conductivity, through-plane 23 °C; 50 % r. h. 0.2 W/(m·K) ISO 8302
Resistance to Heat (Ball Pressure Test) 135 °C IEC 60695-10-2
Flash-Ignition Temperature 480 °C ASTM D1929
Self-Ignition Temperature 550 °C ASTM D1929

Other properties (23 °C)

Property Test Condition Value Unit Standard
Water Absorption (Saturation Value) Water at 23 °C 0.3 % ISO 62
Water Absorption (Equilibrium Value) 23 °C; 50 % r. h. 0.12 % ISO 62
Density 1,200 kg/m³ ISO 1183-1
Bulk Density Pellets 660 g/cm³ ISO 60

Processing conditions for test specimens

Property Test Condition Value Unit Standard
Injection Molding - Melt Temperature 280 °C ISO 294
Injection Molding - Mold Temperature 80 °C ISO 294
Injection Molding - Injection Velocity 200 mm/s ISO 294

Recommended processing and drying conditions

Property Test Condition Value Unit Standard
Standard Melt Temperature 300 °C
Barrel Temperatures Nozzle 290 - 300 °C
Barrel Temperatures Front 280 - 290 °C
Barrel Temperatures Middle 270 - 280 °C
Barrel Temperatures Rear 250 - 260 °C
Barrel Temperatures 290 - 300 °C
Barrel Temperatures 280 - 290 °C
Barrel Temperatures 270 - 280 °C
Barrel Temperatures 250 - 260 °C
Barrel Temperatures 250 - 260 °C
Barrel Temperatures 270 - 280 °C
Barrel Temperatures 280 - 290 °C
Barrel Temperatures 290 - 300 °C
Barrel Temperatures 250 - 260 °C
Barrel Temperatures 270 - 280 °C
Barrel Temperatures 280 - 290 °C
Barrel Temperatures 290 - 300 °C
Barrel Temperatures 250 - 260 °C
Barrel Temperatures 270 - 280 °C
Barrel Temperatures 280 - 290 °C
Barrel Temperatures 290 - 300 °C
Barrel Temperatures 290 - 300 °C
Barrel Temperatures 280 - 290 °C
Barrel Temperatures 270 - 280 °C
Barrel Temperatures 250 - 260 °C
Mold Temperatures 80 - 120 °C
Hold Pressure (% of Injection Pressure) 50 - 75 %
Plastic Back Pressure (specific) 50 - 150 bar
Peripheral Screw Speed 0.05 - 0.2 m/s
Shot-to-Cylinder Size 30 - 70 %
Dry Air Drying Temperature 120 °C
Dry Air Drying Time 2 - 3 h
Moisture Content max. (%) ≤ 0.02 %
Vent Depth 0.025 - 0.075 mm

Downloads

Technical Data Sheet
Download
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com
Download

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