GENERAL PROPERTIES
Celazole® PBI is a high performance imidized thermoplastic. Chemically, Celazole® PBI is polybenzamidazole.
Celazole® PBI is the highest performing engineering plastic currently available. It offers the highest heat resistance (it does not melt) and mechanical property retention over 400°F (205°C) 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, Celazole® 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. Celazole® PBI has excellent ultrasonic transparency which makes it an ideal choice for parts such as probe tip lenses in ultrasonic measuring equipment.
Celazole® 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.
NOTE:
PBI is also available in powder, pellet, filament and solution
forms for compression molding, casting, and R & D purposes.
Contact Mr. Mike Gruender, PBI Polymer Product Manager for
PBI Performance Products, Inc. in Charlotte, NC (USA) at
1-704-554-3036 or e-mail him at mike.gruender@pbiproducts.com.• Wafer retaining rings for gas plasma etching • Vacuum tips • Wafer carriers • Contact seals • Insulator bushings • Thermal isolators • Guide rollers
( see also Victrex T-Series PEEK-PBI Blend Specifications )
TYPICAL APPLICATIONS
|
TYPICAL PROPERTIES of CELAZOLE® PBI | ||||
| ASTM or UL test | Property | Celazole® PBI | ||
| PHYSICAL | ||||
| D792 | Density (lb/in³) (g/cm³) |
0.047 1.30 |
||
| D570 | Water Absorption, 24 hrs (%) | 0.40 | ||
| MECHANICAL | ||||
| D638 | Tensile Strength (psi) | 23,000 | ||
| D638 | Tensile Modulus (psi) | 850,000 | ||
| D638 | Tensile Elongation at Break (%) | 3.0 | ||
| D790 | Flexural Strength (psi) | 32,000 | ||
| D790 | Flexural Modulus (psi) | 950,000 | ||
| D695 | Compressive Strength (psi) | 50,000 | ||
| D695 | Compressive Modulus (psi) | 900,000 | ||
| D785 | Hardness, Rockwell | E105 | ||
| D256 | IZOD Notched Impact (ft-lb/in) | 0.5 | ||
| THERMAL | ||||
| D696 | Coefficient of Linear Thermal Expansion (x 10-5 in./in./°F) |
1.3 | ||
| D648 | Heat Deflection Temp (°F / °C) at 264 psi |
800 / 427 |
||
| D3418 | Glass Transition Temp (°F / °C) | 750 / 399 | ||
| - | Max Operating Temp (°F / °C) | 650 / 343 | ||
| C177 | Thermal Conductivity (BTU-in/ft²-hr-°F) (x 10-4 cal/cm-sec-°C) |
2.80 9.64 |
||
| UL94 | Flammability Rating | V-O | ||
| ELECTRICAL | ||||
| D149 | Dielectric Strength (V/mil) short time, 1/8" thick | 550 | ||
| D150 | Dielectric Constant at 1 MHz | 4.20 | ||
| D150 | Dissipation Factor at 1 MHz | - | ||
| D257 | Volume Resistivity (ohm-cm)at 50% RH | >1013 | ||
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.CELAZOLE is a registered trademark of Celanese Advanced Materials, Inc.
All values at 73°F (23°C) unless otherwise noted.
©
Copyright Boedeker Plastics, Inc.
2008