Celazole
PBI
Celazole®
Ponbenzimidazole (PBI) black
Celazole
PBI offers the highest temperature
resistance and best mechanical property retention of
all unfilled thermoplastics. Thanks to its unique property
profile, Celazole PBI might bring the ultimate solution
when no other plastics material can. It is a very appealing
material to high-tech industries such as semiconductor,
aircraft and aerospace industries.
Celazole
PBI Characteristics
- Extremely
high max. allowable service temperature in air (310°C
continuously, going up to 500°C for short periods
of time)
- Excellent
retention of mechanical strength, stiffness and creep
resistance over a wide range of temperatures
- Extremely
low coefficient of linear thermal expansion up to
250°C
- Excellent
wear and frictional behaviour
- Inherent
low flammability
- Good
electrical insulating and dielectric properties
- Low
outgassing in vacuum (dry material)
- High
purity level in terms of ionic contamination
- Excellent
resistance against high energy radiation (gamma &
X-rays)
Celazole
PBI Applications
- High
heat insulator bushings
- Electrical
connectors
- Ball
valve seats
- Clamp
rings
Availability
| . |
Round
Rods (mm) |
Sheet
/ Plates (mm) |
Tubes
O.D. (mm) |
| Celazole
PBI |
9.53 - 101.60 |
12.70
- 38.10 |
42.86
- 138.11 |
| |
|
|
|
Please
note: Certain sizes are non-standard and are generally
not available from stock but manufactured to order.
For further information, please call the sales team
on 0191 258 0777.
Celazole
PBI is extremely hard and can be challenging to fabricate.
Polycrystalline diamond tools are recommended when fabricating
production quantities. Celazole tends to be notch sensitive.
All corners should be radiused (0.040" min.) and
edges chamfered to maximise part toughness.
High
tolerance fabricated components should be stored in
sealed containers (usually polybags with desiccant)
to avoid dimensional changes due to moisture absorption.
Components rapidly exposed to temperatures above 400°F
(205°C) should be "dried" prior to use
or kept dry to avoid deformation from thermal shock.
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CELAZOLE®
is a registered trademark of Hoechst Celanese Corporation. |
