Citation:
Chen Tong-Hui, Bai Yao-Wen, Sun Ren-Hui. Cure Kinetics of Epoxy Resin System Toughened by Polyhexamethylene Carbonate Diol[J]. Acta Physico-Chimica Sinica,
;1997, 13(09): 848-852.
doi:
10.3866/PKU.WHXB19970915
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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 determined 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.
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