Celazole PBI

Celazole PBI Technical Bulletins, Celanese Specialty Operations, P.O. Box 32414, Charlotte, NC 32414. 

PBI is highly resistant to deformation, and has low hysteresis loss and high elastic recovery. It exhibits ductile failure, and may be compressed to over 50% sttain without fracture. Celazole PBI has the highest compressive strength of any thermoplastic or thermosetting resin at 400 MPa. There is no weight loss or... 

Gruender M. PBI polymer, Celazole . Material safety data sheet, PBI Performance Products, Inc., Charlotte, NC 28273, USA 2006. 

Ketron), pol5dmide (Vespel SP-1), polyphenylsulfone (Radel R) and sintered polybenzimidazole (PBI) (Celazole). These materials were unfilled or neat without any flame-retardant additives. 

PEEK/PBI Boedeker Plastics Celazole T Partial miscibility Crystalline/ amorphous... 

PBI polymer heads the list in TABLE XII. Since PBI is thermoplastic and if care is taken to avoid oxidative cross-linking, it will fuse at some temperature and pressure. On a scouting basis, Celazole (TM), high... 

As already mentioned, the acid-base blend concept was applied to intermediate-T fuel cell membranes by Hasiotis et al. [31, 42]. The blend membranes were composed of PBI Celazol (poly(2,2 -/M-phenylene-5,5 -bibenzimidazole, m-PBl, named as Bl) and polysulfone Udel sulfonated in the bisphenol A section (named... 

Manufacturer and trade name include the following PBI Performance Products Celazole . 

In a wide definition, PBI refers to a large family of aromatic heterocyclic polymers containing benzimidazole units. PBI with different structures can be synthesized from hundreds of combinations of tetraamines and diacids. In a specific way, PBI refers to the commercial product under the trademark Celazole , poly(2,2 -m-(phenylene)-5,5 -bibenzimidazole) (Fig. 4.1). In the context of PBI with different structures, this specific PBI is also named as meia-PBI because phenylene ring is meto-coordinated. As an amorphous thermoplastic polymer, the aromatic nuclei of PBI provide the polymer high thermal stabihty (glass transition temperature, Fg = 425-436 °C), excellent chemical resistance, retention of stiffness and toughness, but poor process-abihty [56-58]. Primarily used in textile fibers, the selection of poly(2,2 -m-(phenyl-ene)-5,5 -bibenzimidazole) as the commercial product was made on the basis of its... 

PBIs refer to a class of heterocyclic polymers consisting of benzimidazole linkages in polymer backbone. Poly(2,2 -m-phenylene-5,5 -bibenzimidazole) is almost the only commercial PBI (Celazole ). Its chemical structure is shown in Eigure 8.1. This polymer is often simply named as PBI or m-PBI (m refers to the meta-substitution positions of the phenylene moiety). 

Compression molded PBI stock shapes are commercially available under the trade name Celazole U-60. High temperature and high pressure are needed to compression mold PBI. PBI stock shapes can be further machined into specific parts. With the highest among thermoplastics at about 427°C... 

Celazole U-60SD is a special grade of PBI products with extremely low metallic ion contents (<1 ppm per species) and is generally used in the... 

PBI high temperature polymers and blends 201 Table 7.2 PBI Celazole U-60 typical properties... 

Celazole TU-60 is an unfilled blend of PBI-PEEK. Independently, PEEK is a high performance thermoplastic with excellent mechanical properties, chemical resistance, and thermal stability. The TU-60 blend has even better thermo-mechanical properties than PEEK, particularly at elevated temperatures. And TU-60 can be injection molded to make parts at lower costs than PBI. 

Celazole TU60 is a self-lubricating grade of the PBI-PEEK blend. It is an injection-molding grade like TU-60 but with added features of low... 

Celazole TF-60V is a glass-reinforced PBI/PEEK blend. It is an injectionmolding grade with properties similar to TF-60C except that TF-60V is a much better thermal and electrical insulator. It is ideally suited for applications that require high strength, lower deformation, and excellent insulation under high temperatures. 

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