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