PSU are rigid, high-strength and transparent. They are also characterized by high strength and stiffness, retaining these properties between −100 °C and 150 °C. They have a high dimensional stability, the size change when exposed to boiling water or 150 °C air or steam generally falls below 0.1%. Polysulfone is highly resistant to mineral acids, alkali, and electrolytes, in pH ranging from 2 to 13. It is resistant to oxidizing agents, therefore it can be cleaned by bleaches. It is also resistant to surfactants and hydrocarbon oils. It is not resistant to low-polar organic solventsand aromatic hydrocarbons. Mechanically, polysulfone has high compaction resistance, recommending its use under high pressures. Polysulfones are counted among the high performance plastics. They can be processed by injection molding, extrusion or hot forming.
Chemical and laboratory equipment, plug components, lamp fittings, electrical engineering, for high-frequency technology, aerial carriers, coil formers, microwave equipment, microelectronics, test adapters.
Characteristics:
Transparent with thin wall thicknesses and polished surface
Low density, high strength, hardness and rigidity
High degree of toughness
High thermal stability, high chemical resistance
Very low moisture absorption, good dimensional stability
Caution with strong solvents, stress crack formation possible
Super-heated steam and hydrolysis-resistant
Very good electrical insulation properties
Inherently flame resistant, self-extinguishing
Low dissipation factor, good machining properties