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Flammability Properties of Honeycomb Composites and Phenol-Formaldehyde Resins.

pdf icon Flammability Properties of Honeycomb Composites and Phenol-Formaldehyde Resins. (549 K)
Nyden, M. R.; Brown, J. E.; Lomakin, S. M.

Chapter 16; ACS Symposium Series 599;

American Chemical Society. Fire and Polymers II: Materials and Tests for Hazard Prevention. National Meeting, 208th. ACS Symposium Series 599. August 21-26, 1994, Washington, DC, American Chemical Society, Washington, DC, Nelson, G. L., Editor(s), 245-255 pp, 1995.


fire retardants; flame retardants; composite materials; formaldehyde; flammability; synthetic resins; equations; thermal degradation


The flammability properties of honeycomb composites, which are used in the interior cabin compartments of commercial aircraft, were examined. Analyses of the gases evolved during the thermal degradation of the components indicated that the phenol-formaldehyde resin makes a significant contribution to the flammability of these composites. The possibility that a more fire resistant formulation could be developed was examined by testing a series of resins which differed in the relative amounts of phenol and formaldehyde used in the reaction mixtures. The flammabilities of resins synthesized in excess phenol were measurably less than those synthesized in excess formaldehyde.