Thermal stability analysis of nano-particulate-filled phenolic-based friction composite materials

Abstract

This research article reports the thermal stability behaviour of nano-particulates (multiwalled carbon nanotube and nanoclay)-filled Kevlar-lapinus fibre-reinforced phenolic resin-based friction composite under oxygen atmosphere using thermogravimetric analysis. To analyse the damage assessment of the proposed nano-particulates-filled composites under thermal surroundings, the thermograph of the composites are generally divided into three major temperature zones (i.e. zone-1, zone 2 and zone-3). Temperature of zone-1 ranges from 30 C to 350 C, zone-2 from 350 C to 600 C and finally zone-3 from 600 C to 900 C. It has also been noticed that in zone-1 the friction composite shows relatively lower magnitude of thermal stability; thereafter, the decomposition rate accelerates with steep drop in thermal stability in zone-2. As heat supply continued to zone-3, the composite degradation rate gradually accelerates. The incorporation of nano-particulates indicated a remarkable improvement in the thermal stability of Kevlar/lapinus fibre combination reinforced friction composites. Furthermore, the result shows that nanoclay surpassed multiwalled carbon nanotube with regard to the thermal stability of friction formulations. This investigation confirms that nano-particulates-filled Kevlar/lapinus fibre-reinforced friction composites possess excellent potential to be used as high temperature-resistant friction materials.

Parametric study and optimization of multiwalled carbon nanotube filled friction composite materials using taguchi method

“…After setting up examinations between carbon nanotubes and asbestos nanotubes, Murr and Soto revealed that the inclusion of carbon nanotubes to assess the tribo‐performance of friction composites in braking circumstance has turned into a conspicuous interest. Further, Hwang et al and Singh et al reported that addition of MWCNT and nanoclay in friction materials resulted in improved fade and recovery performances with higher label of COF. Liu et al investigated the tribo‐performance of nano rubber filled friction materials, finding that nanorubber inclusion improve the friction and wear performance.…”

Application of hybrid analytical hierarchy process and complex proportional assessment approach for optimal design of brake friction materials

“…The selected ingredients were weighted in an electronic weighing machine and mixed in a shear mixture for their proper distribution. Mixing schedule, sequence and fabrication details of the friction composites were reported elsewhere .…”

Assessment of braking performance of lapinus–wollastonite fibre reinforced friction composite materials

“…4 and 5). However, in case of LW0/LW-1/LW-2, the higher magnitude of friction coefficients may be attributed to the presence of hard lapinus fibre that enhances the abrasive component and aids the thermal resistance of the friction materials contributing to enhanced thermal stabilization (Singh et al, 2014). The increase in l R is due to disintegration of loosely compacted wear debris during the recovery cycle leading to the formation of third bodies between the pad and disc interface.…”