TiO₂-loaded epoxy resin with improved electrical characteristics as promising insulating materials

Abstract

Epoxy resin (EP)-based composites have been widely used as a new type of insulating material in ultra-high voltage direct current transmission network. In this work, we prepare a series of TiO 2 -loaded EP composites and discuss the effects of TiO 2 nanoparticles on mechanical properties, and electrical properties. The results indicate that TiO 2 nanoparticles can improve electrical characteristics of pure EP sample significantly. TiO 2 /EP-5% (5 represented the mass percentage of TiO 2 in the composites) promises the superior electrical properties than its counterparts with other filler concentration. It is believed that organic-inorganic interface formed between TiO 2 nanoparticles and EP matrix can effectively facilitate the generation of interconnected channels, which provide more possibility for the dissipation of accumulated charges and fast transport of charge carries, thus decreasing the surface resistivity. Meanwhile, the superior electrical breakdown strength can be also obtained in TiO 2 /EP-5%. We believe that TiO 2 /EP composites may be promising insulting materials in practical applications.

Computational Simulation for Breakdown and Energy Storage Performances with Optimization in Polymer Dielectrics

“…Therefore, an appropriate content exists to optimize the E b and energy storage performance of the polymer dielectrics. [149][150][151][152] To sum up, for simple organic-inorganic blends, diverse variables of inorganic fillers play a vital role in improving material properties, using computational simulation to understand and predict the breakdown process and electric field distribution in organic polymers randomly filled with inorganic fillers of different variables. It can optimize the E b and energy storage performance of the dielectrics to the maximum extent.…”

“…Therefore, an appropriate content exists to optimize the E b and energy storage performance of the polymer dielectrics. [ 149–152 ]…”

Physical and photocatalytic properties of Nd codoped (Ag, Cu)TiO2 thin films

“…In recent years, Titanium dioxide (TiO 2 ) has attracted great attention due to its wide range of potential applications. TiO 2 nanostructures have particular relevance to photocatalysis, photovoltaics and photoelectrochemical cells which leads to numerous applications such as water splitting [1], self-cleaning [2,3] antibacterial, antimicrobial and degradation of antibiotics in wastewater [4][5][6], degradation of organic compounds [7][8][9], metal corrosion prevention [10] and abrasion [11], in electronics [12,13], photodynamic therapy [14], optical sensors [15], as well as in biological areas such as cancer therapeutics [16] and drug delivery [17]. All these applications are related to the unique properties of TiO 2 like high transparency in the visible, low cost, inertness, nontoxicity, and chemical and photochemical stability.…”