Jaques, N.G.N.G.JaquesLima Souza, J.W. deJ.W. deLima SouzaPopp, M.M.PoppKolbe, J.J.KolbeLia Fook, M.V.M.V.Lia FookRamos Wellen, R.M.R.M.Ramos Wellen2022-03-062022-03-062020https://publica.fraunhofer.de/handle/publica/26256910.1016/j.compositesb.2019.1076512-s2.0-85076675829Epoxy resins from bisphenol A of diglycidyl ether/anhydride methyl tetrahydrophthalic/2,4,6-tris dimethylaminomethyl phenol were prepared by mechanical mixing using a magnetic stirrer. Substitution of synthetic catalyzer by eggshell powders provided high performance biobased materials. Chemical character analysis of epoxy/eggshell carried out using dispersive energy spectrometry, and Fourier transform infrared spectroscopy, acquired data indicated the eggshell membrane as a suitable catalyzer for the cross-linking reaction, due to the presence of amines, hydroxyl and sulfur that could participate in the cross-link reaction. The cure kinetics was investigated using differential scanning calorimetry and applying Ozawa, Kissinger, Friedman isoconversional, Málek, and Friedman model-based, where Málek and Friedman model-based presented the best fits to describe synthetic and biobased materials.enNachhaltigkeit620660671journal article