DSC ANALYSIS OF THE CURING REACTION OF UNSATURATED POLYESTER 3301

With isothermal and dynamic method,an analysis was made on the curing reaction of 250℃ high temperature strain gauge adhesive composed of unsaturated polyester 3301,styrcne,cyclohexanone peroxide and cobalt(Ⅱ) naphtheqnate by using CDR-1 differential scanning calorimeter.Thermal effect(ΔH) and curing parameters were obtained in isothermal and dynamic conditions. Apparent activity energy (ΔE) in isothermal and dynamic conditions were computed by using Arrhenius and Kissinger's equations. The results obtained from this work provided very important information for determining processing conditions of 250℃ high temperture stain gauae adhesive.