PPO Polyphenylenoxid Polyphenylene Oxide
Application: Far mostly used as blends, most with polystyrene. Large computer and printer enclosures, optionally with inlaid structural foam. electrical contacts. Water pumps. Enclosures Power tool.
extrusion: Blends are well. Widely used.
Electrical properties: Fertilize
Colors: opal white. Poor color stability.
Physiological properties: PPO found with food approval.
Trade names: NORYL®.
History: Polyfenylenoxid was patented in 1964 by General Electric Plastics (USA), came on the market 1965, but was too high in price for most applications.
General Electric, modified product (presumably 50% PPO og 50% styrene) and gave it the name Noryl which came on the market 1966.
Identification fire test: PPO is self-extinguishing by fire.
Chemical resistance: Reasonable against acid and alkali oil and fat. Fairly to alcohol. poor face Aromatic Hydrocarbons – Halogenerated Hydrocarbons
Chemical structure: Amorphous thermoplastics. Density 1,06 g/cm³. PPO polymers are produced by a combination of phenol monomers.
Delivery: Rods plate
Bonding: Trichlorethylene can be used as a glue,.
Mechanical properties: Stiv, strong, tough thermoplastics with very good dimensional stability.
Optical properties: amorphous plastics, but not transparent
Injection molding: Blends are well. Widely used.
Welding: Mirror welding can be excellent in blends.
Thermal Properties. Can withstand an operating temperature of water at 85º C. Application temperature up to 110 – 140 0C that can withstand temperatures up to about. 140° C.
Additives: The product may be added to glass fiber, PTFE and the structural foam. Most PPO is used as a blend with blue. a. polystyrene.
Water absorption: Very low water absorption, that. 0.07%. Withstands hot water.
Thermoforming (Termoformning): Blends are well.