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PBI (PolyBenzImidazole) fiber (1983) is a synthetic fiber with no melting point that also does not ignite. Due to its exceptional thermal and chemical stability, it is the love of astronauts and fire departments.

Table of contents
1 PBI fiber characteristics
2 Major Industrial PBI Fiber Uses
3 Production
4 See also

PBI fiber characteristics

Major Industrial PBI Fiber Uses


The Federal Trade Commission definition for PBI fiber is "A manufactured fiber in which the fiber-forming substance is a long chain aromatic polymer having reoccurring imidazole groups as an integral part of the polymer chain."

PBI is prepared from tetra-aminobiphenyl and diphenyl isophthalate spun via a dry spinning process using dimethyl acetamide as the solvent.

First U.S. Commercial PBI Fiber Production: 1983, Celanese Corporation

Current U.S. PBI Fiber Producers: Celanese Corporation

See also