Polysulfone (PSU)
Description (definition)
Polysulfone (PSU) is an amorphous, thermoplastic high-performance plastic that impresses with its high temperature resistance, excellent chemical resistance and good mechanical properties. PSU is biocompatible and can withstand high temperatures and steam sterilization, which is why it is often used in medical technology, electronics and the household appliance industry. Its transparency and dimensional stability also make it ideal for technical applications.
An example
A classic example is the use of PSU in reusable medical containers or instrument housings that are regularly sterilized. Its heat resistance and chemical stability ensure a long service life.
What role does PSU play in the household appliance industry?
In household appliances, PSU is used for parts that are exposed to high temperatures and cleaning agents, such as transparent covers in coffee machines or dishwashers. The durability and resistance of the material ensure a long service life.
How sustainable is PSU and can it be recycled?
PSU is thermoplastic and can be recycled, but the recycling process is challenging. PSU is often reused for technical applications with lower quality requirements, which reduces waste.
In which demanding applications is PSU still used?
PSU is also used in the aerospace industry for components that have to work under extreme conditions, such as insulation or transparent covers. Its temperature and chemical resistance make it indispensable in these areas.