The role of cordierite nano filler on the electrical, mechanical, thermal, and chemical properties of liquid silicone rubber used in composite insulators

In this research cordierite (2MgO 2Al2O3 5SiO2)/liquid silicone rubber (LSR) blends were synthesized by adding the cordierite nano filler with varying weight percentages (5, 10, 15) to LSR. Mechanical, thermal, electrical, structural, physical, and chemical properties were investigated for different blend samples and compared to pure LSR. The findings suggest that incorporating cordierite into liquid silicone rubber improved hardness, density, and electrical properties such as dielectric constant, DC volume resistivity, arc resistance, hydrophobicity, and dielectric breakdown strength, which are appealing in the realm of insulating materials for outdoor insulation applications, particularly in the field of transmission and distribution lines.