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The kinetics of the cure reaction for the system consisting of bisphenol-A diglycidyl ether, No.70 anhydride, Polyhexamethylene Carbonate Diol(PHMCD) and DMP-30 has been studied. By use of differential scanning calorimetry(DSC) under isothermal condition, the reaction is found to proceed first via autocatalytic mechanism up to a conversion of 0.3 and then become a first order reaction over a temperature range of 130 ~ 160 ℃. The kinetic parameters of the curing reaction have also been deterndned with both E1 = 63.74 kJ.mol-1, lnA1=13, lnA2 = -3for the autocatalytic mechanism and E =64.68 kj .mol-1, lnA = 13.8 for the first order mechanism.
The kinetics of the cure reaction for the system consisting of bisphenol-A diglycidyl ether, No. 70 anhydride, Polyhexamethylene Carbonate Diol (PHMCD) and DMP-30 has been studied. By use of differential scanning calorimetry (DSC) under isothermal condition, the The reaction is found to proceed first via autocatalytic mechanism up to a conversion of 0.3 and then becomes a first order reaction over a temperature range of 130-160 ° C. The kinetic parameters of the curing reaction have also been deterned with both E1 = 63.74 kJ. mol-1, lnA1 = 13, lnA2 = -3 for the autocatalytic mechanism and E = 64.68 kj. mol-1, lnA = 13.8 for the first order mechanism.