Flammability Properties of Honeycomb Composites and Phenol-Formaldehyde Resins.
Flammability Properties of Honeycomb Composites and
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,
fire retardants; flame retardants; composite materials;
formaldehyde; flammability; synthetic resins; equations;
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.