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Cure Kinetics of Samarium-doped Fe3O4/Epoxy Nanocomposites
- Source :
- Journal of Composites Science, Vol 6, Iss 29, p 29 (2022)
- Publication Year :
- 2021
- Publisher :
- Preprints, 2021.
-
Abstract
- This article belongs to the Special Issue Polymer Composites and Fibers. 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.
- Subjects :
- Technology
lanthanide
epoxy coating
Materiales
Epoxy coating
Science
Curing reaction
Química
Ingeniería Industrial
samarium (Sm)-doped Fe3O4 nanoparticles
polymers_plastics
Lanthanide
Samarium (Sm)-doped Fe3o4 nanoparticles
Energías Renovables
Ceramics and Composites
curing reaction
Engineering (miscellaneous)
Biología y Biomedicina
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Journal of Composites Science, Vol 6, Iss 29, p 29 (2022)
- Accession number :
- edsair.doi.dedup.....04783ef921654218a5a2b864e6375bdf