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Glossary » Materials » Polymers » Polyphenylene Oxide » Alloy With Polystyrene

Alloy With Polystyrene PPO is a subcategory of Polyphenylene Oxide. The additative is added during the manufacturing process. Its elastic modulus ranges from 310 to 380 MPa. Its flexural modulus ranges from 325 to 400 MPa. Its tensile strength ranges from 6800 to 7800 MPa at break. Its flexural strength ranges from 800 to 12800 MPa. Its compressive strength ranges from 1200 to 16400 MPa. Its Izod Impact strength ranges from 3 to 6 J/cm. Its elongation at break ranges from 48 to 50 %. Its hardness ranges from 115 to 116 Rockwell R. Its specific gravity ranges from 1.04 to 1.1. Its coefficient of thermal expansion ranges from 38 to 70 x 10^-6/°C. Its melting temperature ranges from 100 to 112 °C. Its molding pressure ranges from 12 to 20 MPa.

Polyphenylene Oxide, also known as PPO, is a thermoplastic polycondensate. The most common trade name is Ashley. low glass transition temp 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.