Thermal degradation behavior of epoxy resin blended with propyl ester phosphazene

The study was focused on the thermal degradation behavior of epoxy resins (EP) blended with propyl ester phosphazene (FR). The analysis studied the evolved gas and the residual char yield using different techniques. The results showed that pure epoxy resin and their blends were all a one‐stage therm...

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Bibliographic Details
Published in:Journal of applied polymer science 2001-08, Vol.81 (5), p.1161-1174
Main Authors: Denq, Bar-Long, Chiu, Wen-Yen, Lin, King-Fu, Fuh, Ming-Ren Steve
Format: Article
Language:English
Subjects:
Applied sciences
blends
Chemical reactions and properties
Degradation
epoxy resin
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
propyl ester phosphazene
pyrolysis mechanism
thermal degradation
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Summary:The study was focused on the thermal degradation behavior of epoxy resins (EP) blended with propyl ester phosphazene (FR). The analysis studied the evolved gas and the residual char yield using different techniques. The results showed that pure epoxy resin and their blends were all a one‐stage thermal degradation reaction. The major degradation temperature of blends was lower than the temperature of pure epoxy resin, but the residual char yield of epoxy blends at 550°C was higher than that of pure epoxy resin. FR could accelerate the production of small molecules such as acetone, phenol, and isopropyl phenol during thermal degradation process. Honeycomb structure compounds were also formed in the residual char of epoxy and its blends. Additionally, elemental analysis of the residual char yield showed that phosphorus was a residual element, and other elements mostly diffused to the evolved gas. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 1161–1174, 2001
ISSN:0021-8995
1097-4628
DOI:10.1002/app.1538