Effect of thermal aging on the mechanical and optical properties of a polyester resin

Thermal aging of an unsaturated polyester resin at 150°C was followed for a period of 960 h. The mechanical properties of cured polyester resin were enhanced at the start of aging, followed by slight deterioration. However, some improvement in the tensile strength and modulus were observed at the en...

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Veröffentlicht in:	Journal of applied polymer science 1986-09, Vol.32 (4), p.4473-4477
Hauptverfasser:	Shalash, Riadth J. A., Al-Jarrah, Mustafa M. F.
Format:	Artikel
Sprache:	eng
Schlagworte:	Ageing Applied sciences Exact sciences and technology Physical properties Polymer industry, paints, wood Properties and testing Technology of polymers
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Thermal aging of an unsaturated polyester resin at 150°C was followed for a period of 960 h. The mechanical properties of cured polyester resin were enhanced at the start of aging, followed by slight deterioration. However, some improvement in the tensile strength and modulus were observed at the end of aging. The optical properties, viz., absorbance, transmittance, and reflectance, exhibited the usual change in polymer degradation; the absorbance showed an increase as a function of aging time, whereas the transmittance and reflectance decreased.
ISSN:	0021-8995 1097-4628
DOI:	10.1002/app.1986.070320415