PARA – Polyarylamide PARA GF50
AKROLOY® PARA GF 50 1 natural (5750)AKROLOY® PARA GF 50 1 natural (5750) is a 50% glass fibre reinforced polyarylamid with very high stiffness and strength, even in conditioned state.
Properties
Tensile Modulus Tensile Strength Impact Strength-
Mechanical Properties
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 19000 MPa conditioned 19000 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 310 MPa conditioned 280 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,3 % conditioned 2,3 %
Flexural modulus (2 mm/min | ISO 178) d.a.m. 20000 MPa conditioned 20000 MPa
Flexural strength (2 mm/min | ISO 178) d.a.m. 445 MPa conditioned 410 MPa
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 80 kJ/m² conditioned 100 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 19 kJ/m² conditioned 18 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
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
Burning rate (<100 mm/min) (> 1 mm Thickness | FMVSS 302) +
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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) 0,1-0,2 %
Molding shrinkage (transverse | ISO 294-4) 0,2-0,4 %
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Electrical Properties
Comparative tracking index (Test liquid A | IEC 60112) >600 V
Dielectric strength (3 mm | IEC 60243) 31 kV/mm
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 | |
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.
