PPA – Polyphthalamide PPA GF30 FR(40)
AKROMID® T9 GF 30 FR natural (7778)
AKROMID T9 GF 30 FR natural (7778) is a 30% glass fiber reinforced, halogen free flame retardant polyphthalamide with light inherent colour.
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.
Parts with tight dimensional tolerances even under high mechanical load.
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.
|Drying time||2 - 4 h|
|Drying temperature (τ ≤ -30°C)||120°C|
|Processing moisture||0,02 - 0,08%|
|Feed section||60 - 90°C|
|Temperature zone 1 - Zone 4||310 - 340°C|
|Nozzle temperature||320 - 340°C|
|Melt temperature||320 - 340°C|
|Mold temperature||100 - 160°C|
|Holding pressure, spec.||300 - 800 bar|
|Back pressure, spec.||30 - 100 bar|
|Screw speed||5 - 10 m/min|
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 9800 MPa conditioned 9800 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 150 MPa conditioned 135 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,8 % conditioned 2,5 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 72 kJ/m² conditioned 63 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 10 kJ/m² conditioned 9 kJ/m²
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 268 °C
Temperature of deflection under load HDT/B (0,45 MPa | ISO 75) >280 °C
Burning rate (UL 94) 0,4mm Wall thickness V-0 Class 0,8mm Wall thickness V-0 Class 1,6mm Wall thickness V-0 Class 3,2mm Wall thickness V-0 Class
GWFI (IEC 60695-2-12) 0,4mm Wall thickness 960 °C 0,8mm Wall thickness 960 °C 1,6mm Wall thickness 960 °C 3,2mm Wall thickness 960 °C
GWIT (IEC 60695-2-13) 0,4mm Wall thickness 800 °C 0,8mm Wall thickness 800 °C 1,6mm Wall thickness 800 °C 3,2mm Wall thickness 800 °C
Density (23°C | ISO 1183) 1,37 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 0,6-0,7 %
Molding shrinkage (flow | ISO 294-4) 0,2-0,4 %
Molding shrinkage (transverse | ISO 294-4) 0,8-1,0 %
Comparative tracking index (Test liquid A | IEC 60112) > 600 V
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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