An investigation on the tribological and mechanical properties of silicone rubber/graphite composites

Abstract

In this study, tribological properties and surface characteristics of silicone rubber/graphite (QMG) composites were investigated as a function of applied load, sliding velocity (1–5 m/s) and temperature. This study discusses a novel approach to improve the tribological properties of silicone rubber (QM). Inclusion of graphite significantly reduces the friction coefficient (̴40%) and specific wear rate of QM (50%). Wear mechanism involves formation of transfer film at the interphase between composite and steel counter surface. Tribological performance of QMG composites were found to be in agreement with its morphological, mechanical and dielectric properties.

Tribological performance of ionic liquid modified graphene oxide/silicone rubber composite and the correlation of properties using machine learning methods

“…It was primarily due to the development of a lubricant film, which smoothens the material that comes into contact with the metal surface, as well as the frictional heat produced. [ 14,32,33 ]…”

“…It was primarily due to the development of a lubricant film, which smoothens the material that comes into contact with the metal surface, as well as the frictional heat produced. [14,32,33] As applied load increases, the frictional heat produced during sliding in the contact area increases. The coefficient of friction was predicted for loads of 20 N and 30 N, as shown in Figure 8C.…”

Rheological behaviors of plasticized polyvinyl chloride thermally conductive composites with oriented flaky fillers: A case study on graphite and mica

“…12 They have been applied to various functional composites with special properties. [13][14][15][16][17][18][19][20] Zhou et al 16 prepared polyamide 6/graphite composites with more than 20 W m À1 K À1 in thermal conductivity with 60 wt% graphite. The abrupt changes appeared in thermal conductivity and dynamic rheological behaviors at 15 vol% graphite.…”

“…Mica is an insulating and high temperature resistant material with similar structure to graphite 12 . They have been applied to various functional composites with special properties 13–20 . Zhou et al 16 prepared polyamide 6/graphite composites with more than 20 W m −1 K −1 in thermal conductivity with 60 wt% graphite.…”

“…Varun et al 18 investigated the effect of graphite on the wear behavior of sillimanite‐reinforced aluminum matrix composites and found that the addition of tin and graphite can both wear rate and coefficient of friction in sillimanite‐reinforced composites. Sarath et al 19 investigated the tribological and mechanical properties of silicone rubber/graphite composites and found that the variation of friction coefficient and thermal conductivity of the composites has positive correlation. It is the establishment of heat conduction network that contributes to the relationship.…”