The author attributed this to the layered structure of the Na-MMT nanoparticles. The reduction in COF was observed with a rise in the normal load for Na-MMT/PES/PTFE composites. All properties showed considerable improvement. Sodium-montmorillonite (Na-MMT) nanoparticles were added to polyethersulfone (PES)/polytetrafluoroethylene (PTFE) to understand the thermal, mechanical, and tribological properties. With increases in the concentration of MMT, the COF was found to decrease due to its lubricating behaviour. Very few researchers have explored the capability of montmorillonite (MMT) for tribological application as a filler in polymers. The rheological properties and nanoparticles dispersion were found to improve with an increase in the frequency. The sonication process for processing polyacrylamide (PMA) reinforced with clay nanoparticles was used, and the effect of the sonication time and frequency was investigated. The wear and mechanical characteristics depended on the reinforcement and agglomeration of the graphene. Solution and flocculation processes were used for the preparation of the graphene silicon composite.
Ruben Sanchez-Hidalgo demonstrated that if we can control the structure, the chemical composition, and the morphology of graphene material, the property of the SR can be tailored. The author correlated this improvement with good bonding between the matrix and the filler.
The sliding velocity had a similar effect on both the COF and the wear rate, and it increased with an increase in the sliding velocity. Simultaneously, the specific wear rate reduced, similar to COF, with graphite content but increased with an increase in load. The COF was observed to reduce with an increase in the wear rate and load. The enhancement of mechanical, wear, and dielectric properties due to the addition of the exfoliated graphite in silicon rubber was investigated. The wear properties of natural rubber and styrene-butadiene rubber were tested against different rocks as friction material and found to be improved. The kinetic COF of the tubular rubber seal decreases with an increasing sliding velocity and reduces the loading level. Graphite nanoplatelets improved the mechanical and abrasion resistance properties of the styrene-butadiene rubber. Reinforcement with CB enhanced the mechanical and tribological properties. Adding graphene and nano-C eO 2 as a filler in SR showed a decrease in the COF. The mechanical and wear characteristic of rubber components can be one essential factor when deciding its candidature for a particular application. The utility of SR for different applications can be improved by a deep analysis of its mechanical and tribological properties, among others. All of these studies have revealed the usefulness of SR for different engineering applications. Similar works can be found in literature that show the influence of graphene oxide addition on resistivity and dielectric constant, thermal stability with the function of iron oxide and CNT filling, and tribological study of various nanocomposites performed on the SR composite. Silicon rubber properties can be radically improved by adding nanofillers like carbon black (CB), carbon nanotube (CNT), graphite, nano C eO 2. Owing to their excellent environmental inertness, thermal stability, and insulating properties, most sectors prefer SR. Synthetic elastomers like silicone rubber (SR) are commonly found in application in industries such as aerospace, medical, and electronics.