ERASURE BELOW THE GLASS TRANSITION TEMPERATURE OF THE EFFECT OF ISOTHERMAL PHYSICAL AGING IN A FULLY CURED EPOXY/AMINE THERMOSETTING SYSTEM

摘要

Erasure below the glass transition temperature (T_g) of the effect of isothermal physical aging (at temperature T_a) in a fully cured epoxy/amine thermosetting system is investigated. The results show that physical aging and deaging below T_g account for subtle but measurable changes in moduli over wide ranges of temperature.