PBI - CELAZOLE PBI
Offers the highest temperature resistance and best mechanical property retention of all unfilled thermoplastics. CELAZOLE PBI is very "clean" in terms of ionic impurity and does not outgas (except water). These characteristics make this material extremely attractive to high-tech industries e.g. semiconductor and aerospace industries. Usually CELAZOLE PBI is used for critical components to decrease maintenance costs and to gain valuable production "uptime".
Profile
- Extremely high maximum allowable service temperature in air (310°C continuously, going up to 500°C for short periods of time)
- Excellent retention of mechanical strength and stiffness over a wide temperature range
- Extremely low coefficient of linear thermal expansion
- Excellent wear & frictional behaviour
- Inherent low flammability
- Good electrical insulating and dielectric properties
- Low outgassing (dry material)
- High purity in terms of ionic contamination
- Excellent resistance against high energy radiation (gamma and X-rays)
Applications
- High heat insulator bushings
- Bushings used in hot runner plastic injection moulds made of Celazole PBI allow the plastic being moulded to remain in melt as the part "freezes" in the cool mould. Bushings last longer and ease cleaning, as hot molten plastics do not stick to Celazole PBI.
- Electrical connectors
- For an extra margin of safety, an aircraft engine manufacturer replaced polyimide connectors exposed to temperatures over 205°C with CELAZOLE PBI.
- Ball valve seats
- Seats manufactured from Celazole PBI excel in high temperature fluid handling service.
- Clamp rings
- Parts machined from CelazoleŽ PBI for gas plasma etching equipment last longer than polyimide parts due to reduced high energy erosion rates. Because they need replacement less often, valuable production "uptime" is gained.
- Light bulb contact parts
- Manufacturers of incandescent and fluorescent light bulbs use CELAZOLE PBI for high temperature contact parts like vacuum cups, fingers and holders. It offers a higher temperature resistance, improved wear performance and longer life than polyimides. CELAZOLE PBI also reduces the yield loss (broken bulbs) previously experienced with ceramics.
