PARA – Polyarylamide PARA GF50
AKROLOY® PARA GF 50 1 black (7583)
AKROLOY® PARA GF 50 1 black (7583) is a 50% glass fibre reinforced polyarylamid with very high stiffness and strength, even in conditioned state.
Typical applications
Components with high dimensional stability, independent from moisture content. AKROLOY® PARA GF 50 is an alternative for aluminium- and zinc diecast alloys.
Processing information
The listed values are recommendations. Higher values should be used for higher glass loadings. We recommend only de-humidifying or vacuum dryers. Extensive drying can cause filling problems and surface defects.
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Drying time | 4 - 12 h |
| Drying temperature (τ ≤ -30°C) | 80 - 90°C | |
| Processing moisture | 0,02 - 0,1% | |
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Feed section | 60 - 80°C |
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Temperature zone 1 - Zone 4 | 250 - 300°C |
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Nozzle temperature | 270 - 300°C |
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Melt temperature | 270 - 300°C |
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Mold temperature | 120 - 160°C |
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Holding pressure, spec. | 300 - 1500 bar |
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Back pressure, spec. | 50 -150 bar |
| Injection speed | high | |
| Screw speed | 8 - 10 m/min | |
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Mechanical Properties
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 19700 MPa conditioned 19700 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 295 MPa conditioned 270 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,0 % conditioned 2,0 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 78 kJ/m² conditioned 90 kJ/m²
Charpy impact strength (-30°C | ISO 179-1/1eU) d.a.m. 60 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 15 kJ/m² conditioned 14 kJ/m²
Charpy notched impact strength (-30°C | ISO 179-1/1eA) d.a.m. 17 kJ/m²
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Thermal Properties
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 230 °C
Temperature of deflection under load HDT/C (8 MPa | ISO 75) 200 °C
Glass transition temperature (DSC, 2nd heating | DIN EN ISO 11357-2) 87 °C
Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3) 238 °C
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Flammability
Burning rate (UL 94) 1,6mm Wall thickness HB Class
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General properties
Density (23°C | ISO 1183) 1,65 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 0,8 %
Water absorption 23°C saturated (23°C, saturated | ISO 62) 3,5 %
Molding shrinkage (flow | ISO 294-4) 0,0-0,2 %
Molding shrinkage (transverse | ISO 294-4) 0,2-0,4 %
Disclaimer
All specifications and information given on this website are based on our current knowledge and experience. A legally binding promise of certain characteristics or suitability for a concrete individual case cannot be derived from this information. The information supplied here is not intended to release processors and users from the responsibility of carrying out their own tests and inspections in each concrete individual case. AKRO®, AKROMID®, AKROLEN®, AKROLOY®, AKROTEK®, ICX® and PRECITE® are registered trademarks of the Feddersen Group.
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