Flame-and Smoke-Retardant Polymer Systems.

摘要

The effort directed to the enhancement of the fire performance characteristics of molded polyvinyl chloride was continued. The effects of a latex-based intumescent paint and a mastic coating on the formation of smoke and volatile combustion products were determined. Also, flame propagation measurements were conducted with these and with other, previously prepared experimental compositions. Among the protective coatings evaluated, an alkyd-based intumescent paint exhibited best performance with regard to smoke and CO formation. This coating also contributed least to the NOx content of the combustion chamber atmosphere. Tensile strength, dielectric constant, dissipation factor and volume resistivity data are reported for the experimental fire- and smoke-retardant PVC compositions. (Author)