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PPO Rod

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Properties common to all products in this list

Composition: PPO (modified), PPE (modified) Form: Rod Material: Polyphenylene oxide (PPO) CAS Number: 9041-80-9 Commodity: Polymers
PPO Rod is a rigid form of polyphenylene oxide, designed for high-strength machining applications where dimensional stability and resistance to moisture are critical. With its excellent dielectric properties, thermal stability, and toughness, PPO rods are used across industries such as electronics, automotive, and fluid handling. Specific applications include machined insulators in electrical assemblies, lightweight automotive components, and chemically resistant fittings. In research, PPO rods are investigated for mechanical creep resistance, oxidative stability, and compatibility in blends with other polymers such as polystyrene. Their combination of machinability, rigidity, and resistance to hydrolysis ensures PPO rods remain vital in high-performance industrial applications and experimental studies where stable and reliable thermoplastics are required.
Starting at $291.00 each
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Material Properties

Chemical Resistance
Element Value
Acids - concentrated Good-Fair
Acids - dilute Good
Alcohols Good
Alkalis Good
Aromatic hydrocarbons Poor
Greases and Oils Good-Poor
Halogenated Hydrocarbons Fair-Poor
Halogens Poor
Ketones Poor
Mechanical Properties
Element Value
Coefficient of friction 0.35
Hardness - Rockwell M78/R115
Poisson's ratio 0.38
Elongation at break( % ) 50
Tensile modulus( GPa ) 2.5
Izod impact strength( J m⁻¹ ) 200
Abrasive resistance - ASTM D1044( mg/1000 cycles ) 20
Tensile strength( MPa ) 55-65
Electrical Properties
Element Value
Dielectric constant @1MHz 2.7
Dissipation factor @ 1kHz 0.004
Dielectric strength( kV mm⁻¹ ) 16-20
Surface resistivity( Ohm/sq ) 2x10¹⁶
Volume resistivity( Ohmcm ) 10¹⁷
Physical Properties
Element Value
Flammability HB
Radiation resistance Good
Limiting oxygen index( % ) 20
Water absorption - over 24 hours( % ) 0.1-0.5
Density( gcm⁻³ ) 1.06
Thermal Properties
Element Value
Heat-deflection temperature - 0.45MPa( C ) 137
Heat-deflection temperature - 1.8MPa( C ) 125
Lower working temperature( C ) -40
Upper working temperature( C ) 80-120
Thermal conductivity( W m⁻¹ K⁻¹ ) 0.22@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ ) 60
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Available Configurations

Properties common to all products in this list

Composition: PPO (modified), PPE (modified) Form: Rod Material: Polyphenylene oxide (PPO) CAS Number: 9041-80-9 Commodity: Polymers

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Tolerances

Rod
Diameter +20% / -10%