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Citation: Liu Yan-Fang, Zhao Min, Shen Shi-Gang, Gao Jun-Gang. Curing Kinetics of Tetrabromo-bisphenol-a Epoxy Resin with Diaminodiphenyl Methane[J]. Acta Physico-Chimica Sinica, ;1998, 14(10): 927-931. doi: 10.3866/PKU.WHXB19981012 shu

Curing Kinetics of Tetrabromo-bisphenol-a Epoxy Resin with Diaminodiphenyl Methane

1.
Department of Chemistry,Hebei University,Baoding 071002

Received Date: 4 January 1998
Available Online: 15 October 1998

Kinetics of tetrabromo-bisphenol-A epoxy resin (TBBPAER ) cured with 4, 4'-(DDM) was studied by isothermal differential scanning calorimetry (DSC),The reaction heat of the curing reactions of TBBPAER/DDM was determined, and the curves of dα/dt αand α t at different temperatures were obtained. The results indicate that the mechanism of the isothermal curing reactions of TBBPAER/DDM follows autocatalytic reaction. The autocatalytic behavior can be well described by Kamal equation, meanwhile, the difference of the effect of diffusion on the reaction at different temperatures can be obviously shown, The kinetic parameters,k1,k2,m and n, were computed using the nonlinear regression technique. The apparent activation energies for k1,k2 are 52.2 KJ.mol-1 and 46.5 kJ'mol-1, respectively, The average values of m and n are 0.18 and 1.68, respectively.
- Tetrabromo-bisphenol-A epoxy resin,
- Diaminodiphenyl methane,
- Curing reaction,
- Kinetics,
- Differential scanning calorimetry
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