Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share this content! On (X network) By
Cure Kinetics of Samarium-Doped Fe3o4/Epoxy Nanocomposites Publisher



Jouyandeh M1 ; Ganjali MR1, 2, 3 ; Mehrpooya M4 ; Abida O5 ; Jabbour K5 ; Rabiee N6 ; Habibzadeh S7 ; Mashahdzadeh AH8 ; Garciapenas A9, 10 ; Stadler FJ9 ; Saeb MR11
Authors
Show Affiliations
Authors Affiliations
  1. 1. Center of Excellence in Electrochemistry, School of Chemistry, University of Tehran, Tehran, 14176-14411, Iran
  2. 2. School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, 611731, China
  3. 3. Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, 14117-13137, Iran
  4. 4. Department of Renewable Energies and Environment, Faculty of New Sciences and Technologies, University of Tehran, Tehran, 14155-6619, Iran
  5. 5. College of Engineering and Technology, American University of the Middle East, P.O. Box 220, Dasman, 15453, Kuwait
  6. 6. Department of Physics, Sharif University of Technology, Tehran, 11155-9161, Iran
  7. 7. Department of Chemical Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, 15916-34311, Iran
  8. 8. Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan, 010000, Kazakhstan
  9. 9. 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
  10. 10. Departamento de Ciencia e Ingenieria de Materiales e Ingenieria Quimica (IAAB), Universidad Carlos III de Madrid, Leganes, 28911, Spain
  11. 11. Department of Polymer Technology, Gdansk University of Technology, G. Narutowicza 11/12, Gdansk, 80-233, Poland

Source: Journal of Composites Science Published:2022


Abstract

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. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
Other Related Docs