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Synergistic effect of organic and inorganic nano fillers on the dielectric and mechanical properties of epoxy composites

引用

Journal of Materials Science & Technology 2018年第12期34卷 2424-2430页

作者： Muhammad Khan Aqeel A.Khurram Tiehu Li Tingkai Zhao T.Subhani I.H.Gul Zafar Ali Vivek Patel Shaanxi Engineering Laboratory for Graphene New Carbon Materials and Applications School of Materials Science and EngineeringNorthwestern Polytechnical University Laboratory for Advance Materials Processing NCP ComplexIslamabadPakistan Department of Materials Science and Engineering Institute of Space Technology School of Chemical and Materials Engineering NUSTIslamabadPakistan

Titanium oxide TiO;/epoxy and TiO;with detonation nano-diamond（DND）/epoxy nanocomposites were prepared by using ultrasonication method. TiO;and DND particles as reinforcement species and epoxy as matrix were used to produce nanocomposites. The addition of DND particles into TiO;/epoxy composite improved the dielectric and mechanical properties of nanocomposites in significant amount.The dielectric properties of TiO;-DND/epoxy nanocomposite demonstrated increase in permittivity and conductivity after addition of the DND particles. The maximum and minimum reflection losses of TiO;-DND/epoxy nanocomposite for 0.6 and 0.2 wt% DND loading were detected at -14.5 and -1.3 dB,respectively. The flexural and tensile strength of TiO;-DND/epoxy nanocomposites with the addition of 0.4 wt% DNDs were enhanced to 220% and 223%, respectively. Additionally, the energy to break and percent break strain were 3.9 J and 3.86, respectively for 0.4 wt% DND loading in TiO;-DND/epoxy nanocomposite. Therefore, the present work findings claim that DND particles are well suitable to enrich the dispersion of TiO;nanoparticles in epoxy matrix, which develops a strong load transfer interface between the nanoparticles and epoxy matrix and consequently leads to superior properties.

关键词： epoxy nanocomposite Dispersion Mechanical and dielectric properties

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