30% Glass Fiber (30 GF) PPO
30 GF PPO is a grade of PPO. The graph bars on the material properties cards below compare 30 GF PPO to: polyphenylene 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
Flexural Modulus
7.6 GPa 1.1 x 106 psi
Flexural Strength
140 MPa 20 x 103 psi
Impact Strength: Notched Izod
120 J/m 2.3 ft-lb/in
Tensile Strength: Ultimate (UTS)
120 MPa 18 x 103 psi
Thermal Properties
Heat Deflection Temperature At 1.82 MPa (264 psi)
140 °C 280 °F
Maximum Temperature: Mechanical
110 °C 220 °F
Specific Heat Capacity
1070 J/kg-K 0.26 BTU/lb-°F
Thermal Expansion
25 µm/m-K
Electrical Properties
Dielectric Constant (Relative Permittivity) At 1 Hz
3.2
Dielectric Strength (Breakdown Potential)
21 kV/mm 0.82 V/mil
Electrical Dissipation At 1 Hz
0.0020
Electrical Resistivity Order of Magnitude
15 10x Ω-m
Otherwise Unclassified Properties
Density
1.4 g/cm3 85 lb/ft3
Limiting Oxygen Index (LOI)
32 %
Water Absorption After 24 Hours
0.060 %
Common Calculations
Strength to Weight: Axial
25 points
Strength to Weight: Bending
40 points
Followup Questions
Further Reading
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
CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015