Impact of surfactant modified ferrite nanoparticles on mechanical and thermal characteristics of epoxy
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Date
2019-09
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G.B. Pant University of Agriculture and Technology, Pantnagar - 263145 (Uttarakhand)
Abstract
Present investigation deals with development of surfactant modified ferrite nanoparticles (FNs) to achieve the epoxy ferrite composites (EFCs) bearing enhanced dispersion and compatibility of filler with epoxy matrix. This has afforded a series of EFCs with improved tensile, bending, compressive and impact strength. EFCs has shown improved hardness with characteristic reduction in their wear loss. However, a marginal increase in thermal stability of EFCs has been observed. Formation of surface modified FNs (SFNs) and their compatibility with epoxy matrix was clearly revealed through Fourier transformed infra- red spectra. Diversified microscopic methods in combination with X-ray diffraction spectra, magnetometry and DC conductivity experiments reveals enhanced dispersion of SFNs into EFCs. The overall experimental outcome reveals that SFNs (2 phr) imparts improved dispersion, compatibility with epoxy matrix that leads to the formation of EFCs with improved mechanical properties and controlled wear loss. Study further reveals that, EFCs developed through SFNs were of improved durability over those derived from FNs under identical filler loadings. Study finally disclose the importance of surfactants as modifiers for magnetically active fillers such as ferrites and their similar analogues making them suitable for development of high performance polymer nanocomposites suitable for the appliances useful for transportation, stealth and energy management, and biomedical applications.