THERMAL DEGRADATION OF PHENOLIC POLYMER BLENDS

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Authors
  1. Kuzak, S.G.
  2. Murphy, J.G.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN);General Composite Technology Ltd, Halifax NS (CAN)
Abstract
The investigation was performed to examine a range of phenolic materials with respect to their fire performance and the effect of thermal exposure on some of their mechanical properties. The flammability properties included flame spread index (ASTM E-162), smoke density (ASTM E-662), toxicity of combustion gases (Boeing BSS 7239), and heat release and ignitability (ASTEM E-1354). Dynamic mechanical analysis was used to examine the effect of exposure at 180C on storage modulus and tan delta. All of the materials tested performed well with respect to flammability properties, with the novolac and the rsol/novolac blend having a slight edge. The rubber-modified resol exhibited the best retention of modulus, while the resol/novolac blend had the best retention of tan delta.
Report Number
DREA-CR-94-422 — Contractor Report
Date of publication
01 Apr 1994
Number of Pages
61
DSTKIM No
94-05648
CANDIS No
145994
Format(s):
Hardcopy;Document Image stored on Optical Disk

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