Material properties of polyphenylenether (PPE)
Modified polyphenylene ethers (PPE) - also known as polyphenylene oxides (PPO) - are amorphous thermoplastics with interesting properties. They can be classified in the midfield between engineering and high-performance plastics. Pure PPE are practically not used. However, blends of PPE and PS, which are more resistant to oxidation, are of economic importance. In addition to very good chemical resistance, this dimensionally stable plastic is interesting due to its temperature resistance.
PPE is the ideal material for all applications with heat resistance up to +110 °C and good impact strength over a wide temperature range. PPE has very low moisture absorption and therefore remains unaffected by prolonged or repeated exposure to water. Due to its resistance to hydrolysis, this material is also used where it comes into direct contact with boiling water.