Fabrication, mechanical, and electromagnetic studies of cobalt ferrite based‐epoxy nanocomposites
2020; Wiley; Volume: 42; Issue: 1 Linguagem: Inglês
10.1002/pc.25824
ISSN1548-0569
AutoresYong Yang, Farman Ali, Amir Said, Nisar Ali, Sohrab Ahmad, Fazal Raziq, Sajid Khan,
Tópico(s)Advancements in Battery Materials
ResumoAbstract Controlling the interface, contact of organic‐inorganic materials is necessary for the preparation of high‐performance hybrid nanocomposites. Herein, the cobalt ferrite (CoFe 2 O 4 ) nanofiller was synthesized via coprecipitation route by the reaction of Fe 2 (SO 4 ) 3 , CoSO 4 , and triethylene glycol. The obtained CoFe 2 O 4 nanoparticles were thermally treated at 600°C for 5 hours. As prepared, the CoFe 2 O 4 nanoparticles were surface functionalized with 3‐(triethoxysilyl) propylamine (APTES). The modified CoFe 2 O 4 nanoparticles were used as reinforcement during the fabrication of epoxy‐based CoFe 2 O 4 nanocomposite. The synthesized nanofillers and nanocomposites were structurally examined by Fourier transform infrared, X‐ray diffraction analysis, scanning electron microscopy, and thermogravimetric analysis. The effect of nanofiller on surface resistivity, electrical conductivity, and mechanical performance was also investigated. The surface resistivity of EP‐CoFe 2 O 4 nanocomposite decreases with increasing loading concentration of CoFe 2 O 4, while thermal degradation temperatures are improved by 90 K (12.7%) compared to neat EP‐polymer. The mechanical properties, that is, stress‐strain and Young's modulus show an increase of about 60% and 35%, respectively, at 5 wt% CoFe 2 O 4 content. The incredible improvement in the electrical conductivity, mechanical, and thermal stability of EP‐CoFe 2 O 4 up to 5%wt. CoFe 2 O 4 contents are attained due to smaller size and well dispersion of nanofillers in the polymeric matrix. These simultaneous enhancements in properties intend that the EP‐CoFe 2 O 4 nanocomposites can be useful as protective coatings and corrosion‐resistant for a variety of applications
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