Thermal Analysis of Crosslinking Reactions in Epoxy Nanocomposites Containing Polyvinyl Chloride (PVC)-Functionalized Nickel-Doped Nano-Fe3O4
| Autor: | Sajjad Habibzadeh, Babak Bagheri, Mohammad Reza Saeb, Payam Zarrintaj, Mohammad Reza Ganjali, Arash Mouradzadegun, Zohre Karami, Maryam Jouyandeh, Morteza Rezapour |
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| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Scanning electron microscope Nanoparticle 02 engineering and technology 010402 general chemistry 01 natural sciences lcsh:Technology epoxy chemistry.chemical_compound Differential scanning calorimetry crosslinking Thermal analysis lcsh:Science Engineering (miscellaneous) surface functionalization Nanocomposite lcsh:T Epoxy 021001 nanoscience & nanotechnology cure kinetics 0104 chemical sciences Polyvinyl chloride chemistry Chemical engineering visual_art Ceramics and Composites visual_art.visual_art_medium cure index Magnetic nanoparticles lcsh:Q 0210 nano-technology |
| Zdroj: | Journal of Composites Science; Volume 4; Issue 3; Pages: 107 Journal of Composites Science, Vol 4, Iss 107, p 107 (2020) |
| ISSN: | 2504-477X |
| DOI: | 10.3390/jcs4030107 |
| Popis: | This work reports on the thermal analysis of epoxy containing polyvinyl chloride (PVC) surface-functionalized magnetic nanoparticles (PVC–S/MNP) and its bulk-modified nickel-doped counterpart (PVC–S/MNP/Bi–B). Nanoparticles were synthesized through the cathodic electro-deposition method. The morphology of particles was imaged on a field-emission scanning electron microscope (FE-SEM), while X-ray diffraction analysis and Fourier-transform infrared spectroscopy (FTIR) were used to detect changes in the structure of nanoparticles. The magnetic behavior of particles was also studied by vibrating sample magnetometry (VSM). In particular, we focused on the effect of the bulk (Ni-doping) and surface (PVC-capping) modifications of MNPs on the thermal crosslinking of epoxy using nonisothermal differential scanning calorimetry (DSC) varying the heating rate. The cure labels of the prepared nanocomposites were assigned to them, as quantified by the cure index. The good cure state was assigned to the system containing PVC–S/MNP/Bi–B as a result of excessive ring opening of epoxy. Cure kinetics parameters of PVC–S/MNP/Bi–B incorporated epoxy was obtained by the use of isoconversional methodology. The activation energy of epoxy was decreased upon addition of 0.1 wt% of PVC–S/MNP/Bi–B due to the reaction of Cl− of PVC by the functional groups of resin. |
| Databáze: | OpenAIRE |
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