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Curing Epoxy With Polyvinyl Chloride (Pvc) Surface-Functionalized Coxfe3-Xo4 Nanoparticles Publisher



Jouyandeh M1 ; Ganjali MR1, 2 ; Hadavand BS3 ; Aghazadeh M1 ; Akbari V3 ; Shammiry F4 ; Saeb MR3
Authors
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Authors Affiliations
  1. 1. Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, Iran
  2. 2. Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Resin and Additives, Institute for Color Science and Technology, P.O. Box: 16765-654, Tehran, Iran
  4. 4. Department of Environmental Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran

Source: Progress in Organic Coatings Published:2019


Abstract

Complete curing of thermoset systems containing nanoparticles is the first step towards achieving high properties. Surface functionalization of nanoparticles has frequently been considered as the best way to tackle incomplete curing arising from inadequate nanoparticle dispersion throughout thermoset resins. By contrast, the effect of modifications of bulk composition of nanoparticles with elements having potential for curing resins has remained hitherto undescribed in the literature. In this work, cathodic electro-deposition was used in synthesis of magnetic nanoparticles (MNPs), polyvinyl chloride (PVC) capped MNPs (PVC-MNPs) and Co-doped PVC-MNPs to study the effects of surface and surface-bulk modification of MNPs on epoxy ring opening with an aliphatic curing agent. X-Ray diffraction, field-emission scanning electron microscopy and vibrating sample magnetometry analyses probed into changes in surface and bulk of nanoparticles. The universal Cure Index criterion lying on nonisothermal DSC data unraveled curability of epoxy with curing agent under the influence of bulk and surface/bulk modification of MNPs. Systems containing MNPs, PVC-MNPs and Co-doped PVC-MNPs were labeled Poor, Good, and Excellent. Results revealed that bulk modification significantly affected epoxy curing in support of surface functionalization. © 2019
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