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Glossary » Materials » Polymers » Polyphenylene Oxide » Alloy With Polystyrene, 30% Glass Fiber Reinforced

Alloy With Polystyrene, 30% Glass Fiber Reinforced PPO is a subcategory of Polyphenylene Oxide. The additative is added by weight during the manufacturing process. Its elastic modulus ranges from 1000 to 1300 MPa. Its flexural modulus ranges from 1100 to 1150 MPa. Its tensile strength ranges from 15000 to 18500 MPa at break. Its flexural strength ranges from 20000 to 23000 MPa. Its Izod Impact strength ranges from 1.7 to 2.3 J/cm. Its elongation at break ranges from 2 to 5 %. Its hardness ranges from 115 to 116 Rockwell R. Its specific gravity ranges from 1.27 to 1.36. Its coefficient of thermal expansion ranges from 14 to 25 x 10^-6/°C. Its melting temperature ranges from 100 to 125 °C. Its molding pressure ranges from 10 to 40 MPa.

Polyphenylene Oxide, also known as PPO, is a thermoplastic polycondensate. The most common trade name is Ashley. Although it resists many chemicals, it is easily attacked by some hydrocarbons. It has excellent dimensional stability, low moisture absorption, and high mechanical and dielectric strength. PPO is processable by conventional extrusion and injection molding equipment.