Accession Number : ADA185545

Title :   Smoke Hazards Resulting from the Burning of Shipboard Paints. Part 3.

Descriptive Note : Interim rept. 1 Sep 81-31 Aug 83,

Corporate Author : GEORGIA INST OF TECH ATLANTA

Personal Author(s) : Williams, Frederick W ; Powell, E A ; Zinn, B T

PDF Url : ADA185545

Report Date : 18 Sep 1987

Pagination or Media Count : 47

Abstract : Investigations have been continued to evaluate the hazards caused by smoke formation in shipboard fires. The physical properties of the smoke particulates generated during combustion were determined for two types of paints used by the U.S. Navy in ships and submarines. These were a chlorinated alkyd paint and and intumescent paint. The physical properties measured were particle size distribution, mean particle diameter, mass fraction of fuel converted to particulates, optical density, particle refractive index, and particulate volume fraction. The dependence of these properties on the temperature of the test-chamber atmosphere (room temperature to a maximum of 300 deg C) and the mode of combustion (flamming or smoldering) was determined for both materials. The results of this study indicated that both paints produce smoke with a log-normal particle size distribution during smoldering combustion in the room temperature tests. Optical measurements made during these tests show that both paints produce smoke particulates with mean diameters that vary with time between 0.6 and 1.2 microm. Under these conditions the chlorinated alkyd paint produces pale yellow spherical liquid droplets, while the intumescent paint produces a mixture of light tan and white solid particles.

Descriptors :   *COMBUSTION, *PAINTS, *SHIP FIRES, *SHIPBOARD, *SMOKE, CHLORINATION, DENSITY, DIAMETERS, DISTRIBUTION, FIRE RESISTANT MATERIALS, FUELS, HAZARDS, MEAN, MEASUREMENT, OPTICAL PROPERTIES, PARTICLE SIZE, PARTICLES, PARTICULATES, PHYSICAL PROPERTIES, POLYESTER PLASTICS, REFRACTIVE INDEX, ROOM TEMPERATURE, SUBMARINES, TEMPERATURE, TEST METHODS

Subject Categories : Coatings, Colorants and Finishes
      Combustion and Ignition
      Environmental Health and Safety

Distribution Statement : APPROVED FOR PUBLIC RELEASE