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Effect of thermal aging on the mechanical and optical properties of a polyester resin
Author(s) -
Shalash Riadth J. A.,
AlJarrah Mustafa M. F.
Publication year - 1986
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.1986.070320415
Subject(s) - transmittance , absorbance , materials science , polyester , composite material , ultimate tensile strength , modulus , degradation (telecommunications) , polymer , reflectivity , unsaturated polyester , chemistry , optics , chromatography , telecommunications , physics , optoelectronics , computer science
Abstract 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.