| PBI Best Mechanical Properties to
800°F (425°C)
Physical Properties
Product
Profile:
- Highest mechanical properties of any plastic above 400°F (204°C)
- Highest heat deflection temperature 800°F (427°C), with a continuous service
capability of 750°F (399°C) in inert environments, or 650°F (343°C) in air with short
term exposure potential to 1,000°F (538°C)
- Lowest coefficient of thermal expansion and highest compressive strength of all
unfilled plastics
PBI is the highest
performance engineeringm thermoplastic available today. It offers the highest heat
resistance and mechanical property retention over 400°F of any unfilled plastic. It has
better wear resistance and load carrying capabilities at extreme temperatures than any
other reinforced or unreinforced engineering plastic.
As an unreinforced material,
PBI is very “clean” in terms of ionic impurity and it does not outgas
(except water). These characteristics make this material very attractive to semiconductor
manufacturers for vacuum chamber applications. PBI has excellent ultrasonic
transparency which makes it an ideal choice for parts such as probe tip lenses in
ultrasonic measuring equipment.
PBI is also an excellent
thermal insulator. Other plastics in melt do not stick to PBI. These characteristics make
it ideal for contact seals and insulator bushings in plastic production and molding
equipment. |
