Cure Kinetics of Samarium-Doped Fe3O4/Epoxy Nanocomposites
Jouyandeh M. Ganjali M.R. Mehrpooya M. Abida O. Jabbour K. Rabiee N. Habibzadeh S. Mashahdzadeh A.H. García-Peñas A. Stadler F.J. Saeb M.R.
January 2022MDPI
Journal of Composites Science
2022#6Issue 1
To answer the question “How does lanthanide doping in iron oxide affect cure kinetics of epoxy-based nanocomposites?”, we synthesized samarium (Sm)-doped Fe3O4 nanoparticles electrochemically and characterized it using Fourier-transform infrared spectroscopy (FTIR), X-ray powder diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive X-Ray analysis (EDX), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy analyses (XPS). The magnetic particles were uniformly dispersed in epoxy resin to increase the curability of the epoxy/amine system. The effect of the lanthanide dopant on the curing reaction of epoxy with amine was explored by analyzing differential scanning calorimetry (DSC) experimental data based on a model-free methodology. It was found that Sm3+ in the structure of Fe3O4 crystal participates in cross-linking epoxy by catalyzing the reaction between epoxide rings and amine groups of curing agents. In addition, the etherification reaction of active OH groups on the surface of nanoparticles reacts with epoxy rings, which prolong the reaction time at the late stage of reaction where diffusion is the dominant mechanism.
Curing reaction , Epoxy coating , Lanthanide , Samarium (Sm)-doped Fe3O4 nanoparticles
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Center of Excellence in Electrochemistry, School of Chemistry, University of Tehran, Tehran, 14176-14411, Iran
School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, 611731, China
Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, 14117-13137, Iran
Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, 14155-6619, Iran
College of Engineering and Technology, American University of the Middle East, P.O. Box 220, Dasman, 15453, Kuwait
Department of Physics, Sharif University of Technology, Tehran, 11155-9161, Iran
Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, 15916-34311, Iran
Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
College of Materials Science and Engineering, Guangdong Research Center for Interfacial Engineering of Functional Materials, Nanshan District Key Laboratory for Biopolymers and Safety Evaluation, Shenzhen Key Laboratory of Polymer Science and Technology, Shenzhen University, Lihu Campus, Shenzhen, 518055, China
Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química (IAAB), Universidad Carlos III de Madrid, Leganés, 28911, Spain
Department of Polymer Technology, Gdańsk University of Technology, G. Narutowicza 11/12, Gdańsk, 80-233, Poland
Center of Excellence in Electrochemistry
School of Resources and Environment
Biosensor Research Center
Department of Renewable Energies and Environment
College of Engineering and Technology
Department of Physics
Department of Chemical Engineering
Mechanical and Aerospace Engineering
College of Materials Science and Engineering
Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Química (IAAB)
Department of Polymer Technology
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