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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 shu

Cure Kinetics of Epoxy Resin System Toughened by Polyhexamethylene Carbonate Diol

1.
Department of Applied Chemistry,Tianjin University,Tianjin 300072

Received Date: 4 December 1996
Available Online: 15 September 1997

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.
- DSC,
- Epoxy resin,
- Curing kinetics,
- Toughen,
- Polyhexamethylene carbonate diol(PHMCD)
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