Polybenzimidazole (PBI) as a matrix resin precursor for carbon/carbon composites

Journal Article · Mon Apr 01 00:00:00 EST 1991 · SAMPE Quarterly (Society of Aerospace Material and Process Engineers); (United States)

OSTI ID:5328655

Sandor, R B ^[1]

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1. Hoechst Celanese Corp., Charlotte, NC (United States)

Polybenzimidazole (PBI) is used to make continuous fiber prepregs with excellent room temperature drape and tack. Composite panels, tubes and complex shapes are fabricated using either autoclave processing, Thermoclave {reg sign} technique, compression molding or filament winding. The as-cured composites have excellent mechanical properties and the unique ability (among organic polymeric composites) to retain properties at temperatures approaching 1,800F. The PBI/carbon composites can then be used as precursors for carbon/carbon composites. PBI has a high carbonization yield ({approximately} 78%), and emits virtually no offgases to 550C which permits rapid processing. In addition, PBI laminates exhibit 40% less volumetric shrinkage than phenolic laminates. This paper presents a comprehensive study which compares the pyrolysis behavior of laminates made with phenolic and PBI resins on T-300 8HS. With this combination of high performance properties Celazole parts are currently being used for the chemical process and oil recovery industries where the key demands are thermal stability and chemical resistance. In general industrial applications, Celazole is well suited for bearings, sleeves, rollers and other parts where hardness, low friction high compressive strength and thermal and dimensional stability are required.

• OSTI ID: 5328655
• Journal Information: SAMPE Quarterly (Society of Aerospace Material and Process Engineers); (United States), Vol. 22:3; ISSN 0036-0821
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
36 MATERIALS SCIENCE
BENZIMIDAZOLES
MATERIALS TESTING
PYROLYSIS
COMPOSITE MATERIALS
FABRICATION
MATRIX MATERIALS
CARBON FIBERS
CARBONIZATION
CHEMICAL INDUSTRY
COMPRESSION STRENGTH
CORROSION RESISTANCE
CURING
DENSITY
FLEXURAL STRENGTH
HEAT RESISTANT MATERIALS
LAYERS
MECHANICAL PROPERTIES
PETROLEUM INDUSTRY
POLYMERS
PRECURSOR
RESINS
SHEAR PROPERTIES
SHRINKAGE
STABILITY
TENSILE PROPERTIES
AZOLES
CHEMICAL REACTIONS
DECOMPOSITION
FIBERS
HETEROCYCLIC COMPOUNDS
IMIDAZOLES
INDUSTRY
MATERIALS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHYSICAL PROPERTIES
TESTING
THERMOCHEMICAL PROCESSES
400201* - Chemical & Physicochemical Properties
360601 - Other Materials- Preparation & Manufacture
360603 - Materials- Properties