THE EFFECT OF ANTIMONY TRIOXIDE ADDITION ON THE FLAMMABILITY CHARACTERISTICS OF POLYESTER AND VINYL ESTER GLASS REINFORCED PLASTICS

Authors
  1. Morchat, R.M.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The effects of an inorganic fire-retardant additive, antimony trioxide, on flammability characteristics and smoke generation of glass reinforced polyester and vinyl ester plastics were evaluated. Information is presented on the flame spread index (ASTM E162), limiting oxygen index (ASTM D2863), density of smoke generated (ASTM E662) and toxic gases of combustion (Boeing BSS 7239). Addition of the fire-retardant additive to the GRP materials significantly decreased the flame spread index and increased the limiting oxygen index; however, the amount of smoke generated during pyrolytic and flaming combustion was high and unacceptable. Finally, the toxic gas evolution data indicated that the threshold limit values for some gases were exceeded.
Report Number
DREA-TM-89-213 — Technical Memorandum
Date of publication
15 May 1989
Number of Pages
29
DSTKIM No
89-02820
CANDIS No
60723
Format(s):
Hardcopy;Originator's fiche received by DSIS

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