Effect of silica nanoparticles and modified silica nanoparticles on the mechanical and swelling properties of EPDM/SBR blend nanocomposites

Abstract

The influences of nanosilica and modified nanosilica on cure, compression set, mechanical and swelling characteristics are studied in blends of ethylene-propylene-diene monomer (EPDM)/styrene-butadiene rubber (SBR). In EPDM/SBR composites, the nanosilica made from rice husk ash (RHA) was utilised as a reinforcing nanofiller. The interaction between the nanosilica and the EPDM/SBR matrix at the interface is crucial for the production of rubber composites. This study uses bis[3-(triethoxysilyl)propyl] tetrasulfide (TESPT) and polyoxyethylene (20) sorbitan monolaurate (TWEEN-20) as a silica modifier, with the ratio of TESPT to TWEEN-20 maintained at 2:1. The cure and mechanical characteristics, compression set, abrasion and swelling resistance increased with the incorporation of nanosilica and modified nanosilica. By interacting at the interface between silica nanoparticles and the EPDM/SBR rubber matrix, TESPT with the TWEEN-20 modifier exhibits a considerable effect on cure characteristics, mechanical qualities, and swelling resistance.

Studies the effect of halloysite nanotubes on the mechanical and swelling resistance properties of NR/EPDM nanocomposites

“…In addition to other components [39][40], zinc oxide (ZnO) was included in the elastomer compounds to facilitate vulcanization of sulphur (the crosslinking agent) and reduce vulcanization time. Vulcanization accelerators such as dibenzthiazyl disul de (MBTS) and tetramethylthiuram disul de (TMTD) were employed to accelerate the curing process and enhance the mechanical, thermal, and aging resistance of the rubber vulcanizates.…”

Effect of Modified Nanographene Oxide (mGO)/Carbon Nanotubes (CNTs) Hybrid Filler on the Cure, Mechanical and Swelling Properties of Silicone Rubber Composites

“…The specimen was then removed from the compression apparatus and allowed to rest at room temperature for 30 minutes. The permanent compression set (C) [65] was found to be…”

Structural performance evaluation of hybrid polymer composites for critical infrastructure pick-and-place robot grippers using silica nanoparticles

“…Tensile test stress versus strain outcomes of the hybrid polymer composite structure are presented in Figure 8 (a). Different failure modes, including fiber pull-out, fiber breaking and matrix cracking, were observed in each weight percentage of polymer structures, indicating efficient load transmission and energy absorption mechanisms within the composite structure (Ragupathy et al ., 2023). These findings highlight the reliability and potential applications of hybrid polymer composites in critical infrastructure, such as robot grippers for picking and placing, as well as in automotive and aerospace structures, where high tensile strength and fracture toughness are crucial for reliable operations.…”