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20% Glass Fiber (20 GF) PP Homopolymer

20 GF PP homopolymer is a grade of PP homopolymer. The graph bars on the material properties cards below compare 20 GF PP homopolymer to: polypropylene plastics (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.

Mechanical Properties

Elongation at Break

3.3 %

Flexural Modulus

4.0 GPa 0.58 x 106 psi

Impact Strength: Notched Izod

83 J/m 1.5 ft-lb/in

Tensile Strength: Ultimate (UTS)

71 MPa 10 x 103 psi

Thermal Properties

Glass Transition Temperature

170 °C 340 °F

Maximum Temperature: Mechanical

120 °C 250 °F

Specific Heat Capacity

1490 J/kg-K 0.36 BTU/lb-°F

Otherwise Unclassified Properties

Density

1.0 g/cm3 65 lb/ft3

Water Absorption At Saturation

0.020 %

Common Calculations

Strength to Weight: Axial

19 points

Strength to Weight: Bending

37 points

Followup Questions

Further Reading

ASTM D883: Standard Terminology Relating to Plastics

Reinforced Plastics Durability, Geoffrey Pritchard (editor), 1999

SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000

Modern Plastics Handbook, Charles A. Harper (editor), 1999

Plastics Materials, 7th ed., J. A. Brydson, 1999