Study on Dielectric Characteristics of Composite Based on Functional Design

In recent years, with the rapid development of ultra-high-voltage AC and DC transmission technology, the problem of electric field equalization and regulation of high-voltage electrical equipment has become increasingly prominent. Due to the fact that the conductivity and dielectric constant of nonlinear insulating materials can vary with the intensity of the electric field, they have excellent effects on homogenizing the distribution of the electric field and inhibiting the accumulation of electric charges. Using them to manufacture insulation for high-voltage electrical equipment is expected to improve the reliability and structural compactness of products, ensure the stable operation of the power grid, and solve the problem of uneven voltage distribution. The purpose of this thesis is to explore a composite dielectric material with high dielectric properties and good processability. Using BaTiO3 powder as functional phases, epoxy resin (EP) as matrix phase, a solution blending method was used to prepare BaTiO3/EP composite materials to investigate for its dielectric characteristics.