Reaction mechanism, cure behavior and properties of a multifunctional epoxy resin, TGDDM, with latent curing agent dicyandiamide.

ABSTRACT: A novel resin system was prepared using the glycidyl amide type multifunctional epoxy resin N,N,N',N'-tetraglycidyl-4,4'-diaminodiphenylmethane (TGDDM) and latent curing agent dicyandiamide (DICY). The curing reaction mechanism of the TGDDM/DICY system was studied by Fourier transform infrared (FTIR) spectrometry and the non-isothermal cure behaviors of the mixture were investigated with differential scanning calorimetry (DSC) measurements. The FTIR results demonstrated that there were two main reactions occurring in the curing process of the TGDDM/DICY system. The DSC thermogram of the blend exhibited two different cure regimes in the temperature range of 140-358 °C, and the system experienced two autocatalytic curing processes with α = 0.45 as the bound

SUBMITTER: Wu F 

PROVIDER: S-EPMC9078540 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature