Comparative Study of Nano and Micro Fillers in EPDM/Silicone Rubber for Outdoor Insulator Application

Electrical properties of polymer blend composites based on Silicone rubber/EPDM/clay for high voltage insulators

“…Notably, owing to affordable price, a high percent of elongation, being lightweight, thermal resilience, and improved wear resistance, the use of EPDM rubber materials has been expanded in tire sidewalls, wires, vibration, and noise isolation, cables, and outdoor insulation system products. It also exhibits superior tem-perature, oxygen, and ozone resistance [9,10]. However, because of its low rigidity, EPDM rubber cannot be employed for primary structural uses without including fillers such as carbon nanotubes (CNTs) or clay particles [2,11].…”

“…In addition to dissipation factor, due to silicone's low freezing temperature, low surface tension, and high oxidation resistance, an improvement in electrical properties including tracking resistance, comparable tracking index, dielectric constant, and surface and volume resistivity was observed with increasing amounts of SR. Due to their promising mechanical and physical characteristics, rubber/layered silicate (such as montmorillonite (MMT)) nanocomposites have recently attracted much interest . The distribution of MMT clay particles could lead to either exfoliated and/or intercalated structures in the polymer matrix [15]. Rana et al [9] studied the crystallographic, thermal, electrical, and mechanical behavior of out-door insulating EPDM/clay nanocomposites and found that these qualities are improved by incorporating clay into the composite.…”