Cone calorimeter testing of epoxy/fiberglass and brominated epox/fiberglass composites in normal oxygen and oxygen-enriched environments

摘要

A controlled-atmosphere cone calorimeter was used to investigate the burning of one epoxy/fiberglass and two brominated epoxy/fiberglass compoosites. The composites were tested in normal oxygen and oxygen-enriched environments (oxygen concentration up to 30 percent) at 25, 35, and 50 kW/m~2 heat fluxes. Results indicate that the heat flux had a major effect on the ignitability of epoxy/fiberglass and brominated epoxy/fiberglass while the oxygen concentration had a minor effect. The ignitability of epoxy/fiberglass was similar to that of brominated epoxy/fiberglass except the critical heat flux for ignition. For epoxy/fiberglass, the peak mass loss rate, peak heat release rate, and total heat released increased with the increase of oxygen concentration and heat flux, and the average specific extinction area decreased with the increase of oxygen concentration and heat flux.