THE EFFECT OF POST-CURE AND ANTIMONY TRIOXIDE ADDITION ON THE GLASS TRANSITION OF POLYESTER AND VINYL ESTER RESIN SYSTEMS

Authors
  1. Morchat, R.M.
  2. Keough, I.A.
  3. Dwyer, J.G.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
The effect of post-curing on the glass transition temperature of a variety of styrene cross-linked polyester and vinyl ester resins was determined by monitoring the changes to glass transition temperature using a Differential Scanning Calorimeter. The effect of adding the inorganic fire-retardant, antimony trioxide, on the glass transition temperature of these resin systems was also investigated. Results indicated that the effect of post-curing was to increase the amount of cross-linking of the polyester and vinyl ester resins, as evident by the beneficial increase in the glass transition temperature and changes to the storage modulus. The addition of up to 10 parts per hundred resin (phr) of the fire-retardant, antimony trioxide, had a negligible effect on the onset of the glass transition point.
Report Number
DREA-TM-90-208 — Technical Memorandum
Date of publication
15 Dec 1990
Number of Pages
26
DSTKIM No
91-01219
CANDIS No
68430
Format(s):
Hardcopy;Originator's fiche received by DSIS

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