PC MOULDING-COVESTRO-2856
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Rheological properties
| Property
Melt volume-flow rate |
Test Condition
300 °C/ 1.2 kg |
Unit
cm³/10 min |
Standard
ISO 1133 |
typical Value
9.0 |
| Melt mass-flow rate | 300 °C/ 1.2 kg | g/10 min | ISO 1133 | 10 |
| Molding shrinkage, parallel | 60x60x2 mm/ 500 bar | % | ISO 294-4 | 0.7 |
| Molding shrinkage, normal | 60x60x2 mm/ 500 bar | % | ISO 294-4 | 0.75 |
| Molding shrinkage, parallel/normal | Value range based on general
practical experience |
% | b.o. ISO 2577 | 0.6 – 0.8 |
Mechanical properties (23 °C/50 % r. h.)
| Tensile modulus | 1 mm/min | MPa | ISO 527-1,-2 | 2400 |
| Yield stress | 50 mm/min | MPa | ISO 527-1,-2 | 65 |
| Yield strain | 50 mm/min | % | ISO 527-1,-2 | 6.2 |
| Nominal strain at break | 50 mm/min | % | ISO 527-1,-2 | > 50 |
| Stress at break | 50 mm/min | MPa | ISO 527-1,-2 | 70 |
| Strain at break | 50 mm/min | % | b.o. ISO 527-1,-2 | 130 |
| Tensile creep modulus | 1 h | MPa | ISO 899-1 | 2200 |
| Tensile creep modulus | 1000 h | MPa | ISO 899-1 | 1900 |
| Flexural modulus | 2 mm/min | MPa | ISO 178 | 2400 |
| Flexural strength | 2 mm/min | MPa | ISO 178 | 97 |
| Flexural strain at flexural strength | 2 mm/min | % | ISO 178 | 7.1 |
| Flexural stress at 3.5 % strain | 2 mm/min | MPa | ISO 178 | 73 |
| Charpy impact strength | 23 °C | kJ/m² | ISO 179/1eU | N |
| Charpy impact strength | -60 °C | kJ/m² | ISO 179/1eU | N |
| Charpy notched impact strength | 23 °C/ 3 mm | kJ/m² | ISO 21305/based on ISO
179/1eA |
75P |
| Charpy notched impact strength | -30 °C/ 3 mm | kJ/m² | ISO 21305/based on ISO
179/1eA |
16C |
| Izod notched impact strength | 23 °C/ 3 mm | kJ/m² | ISO 21305/based on ISO
180/A |
70P |
| Izod notched impact strength | -30 °C/ 3 mm | kJ/m² | ISO 21305/based on ISO
180/A |
15C |
| Puncture impact properties – maximum force | 23 °C | N | ISO 6603-2 | 5400 |
| Puncture impact properties – maximum force | -30 °C | N | ISO 6603-2 | 6300 |
| Puncture energy | 23 °C | J | ISO 6603-2 | 60 |
| Puncture energy | -30 °C | J | ISO 6603-2 | 65 |
| Ball indentation hardness | N/mm² | ISO 2039-1 | 115 |
Specification: PC MOULDING-COVESTRO-2856
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