PPA – Polyphthalamide PPA GF50
AKROMID® T9 GF 50 black (7601)AKROMID® T9 GF 50 black (7601) is a 50% glass fibre reinforced partially aromatic polyphthalamide with very high stiffness and strength, as well as high temperature and chemical resistance.
The compound is based on PA9T and has lower moisture uptake than conventional PA6T variants. This leads to a significantly higher consistency of the glass transition temperature and higher strength at elevated temperatures especially in conditioned state.
Properties
Tensile Modulus Tensile Strength Impact StrengthFeatures
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Mechanical Properties
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 17000 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 250 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,5 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 95 kJ/m²
Charpy impact strength (-30°C | ISO 179-1/1eU) d.a.m. 80 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 16 kJ/m²
Charpy notched impact strength (-30°C | ISO 179-1/1eA) d.a.m. 14 kJ/m²
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Thermal Properties
Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3) 305 °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) 1,55 g/cm³
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Electrical Properties
Comparative tracking index (Test liquid A | IEC 60112) 600 V
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 | 0 - 4 h |
| Drying temperature (τ ≤ -30°C) | 120°C | |
| Processing moisture | 0,02 - 0,1% | |
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Feed section | 60 - 90°C |
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Temperature zone 1 - Zone 4 | 310 - 340°C |
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Nozzle temperature | 320 - 340°C |
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Melt temperature | 320 - 340°C |
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Mold temperature | 120 - 160°C |
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Holding pressure, spec. | 300 - 800 bar |
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Back pressure, spec. | 50 - 150 bar |
| Injection speed | medium to high | |
| Screw speed | 8 - 15 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.
