Erasure Below The Glass Transition Temperature Of The Effect Of Isothermal Physical Aging In A Fully Cured Epoxy Amine Thermosetting System

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.