PPA – Polyphthalamide PPA GF50

• Mechanical Properties

  Tensile modulus (1 mm/min | ISO 527-2)	d.a.m.	19000 MPa
  	conditioned	19000 MPa

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  Stress at break (5 mm/min | ISO 527-2)	d.a.m.	275 MPa
  	conditioned	275 MPa

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  Strain at break (5 mm/min | ISO 527-2)	d.a.m.	2,2 %
  	conditioned	2,2 %

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  Poisson's ratio (0,05 % - 0,25 % | ISO 527-2)

  d.a.m.

  0,42

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  Flexural modulus (2 mm/min | ISO 178)	d.a.m.	19000 MPa
  	conditioned	19000 MPa

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  Flexural strength (2 mm/min | ISO 178)	d.a.m.	440 MPa
  	conditioned	380 MPa

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  Flexural strain at break (2 mm/min | ISO 178)	d.a.m.	2,6 %
  	conditioned	2,6 %

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  Charpy impact strength (23°C | ISO 179-1/1eU)	d.a.m.	90 kJ/m²
  	conditioned	83 kJ/m²

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  Charpy impact strength (-30°C | ISO 179-1/1eU)	d.a.m.	75 kJ/m²
  	conditioned	75 kJ/m²

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  Charpy impact strength (-40°C | ISO 179-1/1eU)	d.a.m.	70 kJ/m²
  	conditioned	65 kJ/m²

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  Charpy notched impact strength (23°C | ISO 179-1/1eA)	d.a.m.	13 kJ/m²
  	conditioned	13 kJ/m²

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  Charpy notched impact strength (-30°C | ISO 179-1/1eA)	d.a.m.	12 kJ/m²
  	conditioned	11 kJ/m²

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  Charpy notched impact strength (-40°C | ISO 179-1/1eA)	d.a.m.	12 kJ/m²
  	conditioned	11 kJ/m²

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• Thermal Properties

  Temperature of deflection under load HDT/A (1,8 MPa | ISO 75)

  280 °C

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  Temperature of deflection under load HDT/B (0,45 MPa | ISO 75)

  > 280 °C

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  Temperature of deflection under load HDT/C (8 MPa | ISO 75)

  237 °C

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  Glass transition temperature (DSC, 2nd heating | DIN EN ISO 11357-2)

  135 °C

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  Melting temperature (DSC, 10K/min | DIN EN ISO 11357-3)

  325 °C

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  Coefficent of linear thermal expansion, parallel (23°C bis 80°C | ISO 11359-1/2)

  0,14 1,0E-4/K

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  Coefficent of linear thermal expansion, transverse (23°C bis 80°C | ISO 11359-1/2)

  0,47 1,0E-4/K

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  Temperature index for 50% loss of tensile strength after 20.000h (20.000 Std. | IEC 60216)

  155 °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

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  Humidity absorption (70°C, 62% r.H. | ISO 1110)

  0,8 %

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  Molding shrinkage (flow | ISO 294-4)

  0,1-0,3 %

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  Molding shrinkage (transverse | ISO 294-4)

  0,4-0,6 %

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• Electrical Properties

  Comparative tracking index (Test liquid A | IEC 60112)

  600 V

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• Rheological Properties

  Flowability (1mm Thickness | AKRO)

  100 mm

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  Flowability (2mm Thickness | AKRO)

  280 mm

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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.

	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