PBI
From Sealing Technology & Engineering Glossary
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| Name | PBI |
| Definition | Abbreviation for Polybenzimidazole, an infusible, long-chain aromatic polymer with recurring imidazole groups as an integral part of the polymer chain, having extremely high temperature stability (neither ignites nor has a melting point) and high chemical resistance; it can be made into a fiber and used in high-performance protective fabric. |
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