THE EFFECTS OF ALUMINA TRIHYDRATE ON THE FLAMMABILITY CHARACTERISTICS OF POLYESTER, VINYL ESTER AND EPOXY 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, alumina trihydrate, on flammability characteristics and smoke generation of glass reinforced polyester, vinyl ester and epoxy resins 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). Results indicated that the addition of the fire-retardant additive to the polymeric 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-91-214 — Technical Memorandum
Date of publication
15 Dec 1991
Number of Pages
25
DSTKIM No
92-01094
CANDIS No
103985
Format(s):
Hardcopy;Originator's fiche received by DSIS

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