Hits:

Indexed by:期刊论文

Date of Publication:2016-01-10

Journal:THERMOCHIMICA ACTA

Included Journals:SCIE、EI

Volume:623

Page Number:15-21

ISSN No.:0040-6031

Key Words:Epoxy resin; Aromatic diamine; Curing kinetics; Isothermal DSC; Diffusion control

Abstract:The curing reaction of diglycidyl ether of bisphenol A (DGEBA) with a novel aromatic diamine containing phthalide structure (BAPP) was studied by differential scanning calorimetery (DSC). The optimal formulation of DGEBA/BAPP system was obtained in terms of the curing behavior and glass transition temperature determined by dynamic DSC. The nth-order reaction model and autocatalytic model were used to analyze the curing kinetics and mechanism based on the isothermal DSC technique. The results indicated that the Kamal autocatalytic model had a great agreement with the experimental data from the start of curing reaction to the initiation of diffusion control stage. Diffusion-controlled effect was also taken into account and then the extended Kamal model could describe precisely the curing reaction of BAPP/DGEBA in the entire conversion range. (C) 2015 Elsevier B.V. All rights reserved.