Evaluation of dielectric strength of SiR/TiO2 composites using feed-forward neural network

• Published in: IET Nanodielectrics Vol. 3; no. 3; pp. 74 - 80
• Main Authors: Qenawy, Shaymaa A, Nasrat, Loai S, Ismail, Hanafy M, Asaad, Jeannette N
• Format: Journal Article
• Language: English
• Published: Beijing The Institution of Engineering and Technology 01.09.2020; John Wiley & Sons, Inc
• Subjects: composite insulating materials; Composite materials; dielectric applications; Dielectric properties; Dielectric strength; electric strength; electrical properties; elongation; elongation at break tests; feedforward neural nets; feed‐forward neural network technique; filled polymers; Fillers; high‐voltage outdoor insulation; insulating materials; Insulation; insulator contamination; Mechanical properties; micron‐sized titanium dioxide; microtitanium dioxide; mixing; Nanocomposites; nanofabrication; nanomechanics; Nanoparticles; nanosized titanium dioxide fillers; Neural networks; Particle size; physics computing; polymeric materials; Polymers; Research Article; scanning electron microscopy; Silicone rubber; silicone rubber‐titanium dioxide composites; SiR matrix; Tensile strength; TiO2; titanium compounds; Titanium dioxide; Egypt; electric strength; tensile strength; nanomechanics; nanosized titanium dioxide fillers; mixing; nanofabrication; insulator contamination; dielectric applications; elongation; nanocomposites; elongation at break tests; SiR matrix; feed-forward neural network technique; scanning electron microscopy; titanium compounds; electrical properties; silicone rubber-titanium dioxide composites; high-voltage outdoor insulation; mechanical properties; micron-sized titanium dioxide; physics computing; composite insulating materials; dielectric strength; polymeric materials; filled polymers; silicone rubber; insulating materials; microtitanium dioxide; feedforward neural nets; TiO2
• ISSN: 2514-3255; 2514-3255
• DOI: 10.1049/iet-nde.2020.0001

Among the recently insulating materials broadly utilized in high voltage outdoor insulation, silicone rubber (SiR) has gotten the foremost consideration. Actually, SiR is becoming an efficient countermeasure to insulator contamination issues. To enhance different properties of polymeric materials, micro- and nanofillers have been used for dielectric applications. In this study, micron-sized titanium dioxide (TiO2) and nano-sized TiO2 fillers were added to the SiR matrix to improve electrical and mechanical properties. Dielectric strength, tensile strength, and elongation at break tests were monitored. Also, a scanning electron microscope was carried out. The samples were prepared by mixing micro-TiO2 into SiR with the content of 0, 10, 20, 30, and 40 wt% and also mixing nano-TiO2 into SiR with the content of 0, 1, 3, 5, and 7 wt%. A feed-forward neural network technique was used to estimate the dielectric strength in different conditions and different percentages of fillers. Adding nano TiO2 filler enhances the electrical and mechanical properties of SiR composites. SiR with 5 wt% nano TiO2 showed the best improvement in electrical and mechanical properties.