PPA – Polyphthalamide PPA GF35
AKROMID® T5 GF 35 4 black (7692)
AKROMID® T5 GF 35 4 black (7692) is a 35% glass fibre reinforced polyphthalamide with anorganic heat stabilization, very high rigidity and strength, designed for hydrolysis resistance.
This aromatic PPA keeps mechanical performance even at elevated temperatures or moisture pic-up
Heavy duty components in the automotive cooling circuit or other dimensionally stable and rigid parts for engineered applications in the automotive or electrical industry requiring strength and durability even at high temperatures or moist conditions.
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||0 - 4 h|
|Drying temperature (τ ≤ -30°C)||120°C|
|Processing moisture||0,02 - 0,1%|
|Feed section||60 - 90°C|
|Temperature zone 1 - Zone 4||320 - 350°C|
|Nozzle temperature||330 - 350°C|
|Melt temperature||330 - 350°C|
|Mold temperature||120 - 160°C|
|Holding pressure, spec.||300 - 800 bar|
|Back pressure, spec.||50 - 150 bar|
|Injection speed||medium to high|
|Screw speed||8 - 15 m/min|
Tensile modulus (1 mm/min | ISO 527-2) d.a.m. 13500 MPa conditioned 13000 MPa
Stress at break (5 mm/min | ISO 527-2) d.a.m. 220 MPa conditioned 215 MPa
Strain at break (5 mm/min | ISO 527-2) d.a.m. 2,4 % conditioned 2,3 %
Charpy impact strength (23°C | ISO 179-1/1eU) d.a.m. 70 kJ/m²
Charpy notched impact strength (23°C | ISO 179-1/1eA) d.a.m. 11 kJ/m²
Temperature of deflection under load HDT/A (1,8 MPa | ISO 75) 280 °C
Glass transition temperature (DSC, 2nd heating | DIN EN 11357-1) 135 °C
Melting temperature (DSC, 10K/min | DIN EN 11357-1) 325 °C
Burning rate (UL 94) 1,6mm Wall thickness HB Class
Density (23°C | ISO 1183) 1,45 g/cm³
Humidity absorption (70°C, 62% r.H. | ISO 1110) 0,8 %
Molding shrinkage (flow | ISO 294-4) 0,1-0,3 %
Molding shrinkage (transverse | ISO 294-4) 0,4-0,6 %
Surface resistivity (acc. to IEC 60093) d.a.m. 1,0E+12 Ohm
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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