High performance polymer composites: A role of transfer films in ensuring tribological properties—A review

SV Panin, VO Alexenko, DG Buslovich - Polymers, 2022 - mdpi.com
The purpose of this review is to summarize data on the structure, mechanical and
tribological properties, and wear patterns of composites based on high-performance …

Mechanochemical functionality of graphene additives in ultralow wear polytetrafluoroethylene composites

W Sun, X Liu, K Liu, J Xu, Y Lu, J Ye - Carbon, 2021 - Elsevier
Poly-tetrafluoroethylene (PTFE) is a well-known solid lubricant, but its poor wear resistance
limits its tribological applications. Certain carbonaceous fillers reduce PTFE wear rate by up …

Leveraging trace nanofillers to engineer ultra-low wear polymer surfaces

KI Alam, A Baratz, D Burris - Wear, 2021 - Elsevier
Trace nanofillers have proven unable to stabilize polymer surfaces due to their inability to
reinforce the subsurface. Thus far, their effects on surface wear have been obscured by …

How moisture driven mechanochemistry stabilizes transfer film adhesion and cohesion in ultralow wear PTFE composite

J Wei, W Sun, K Liu, X Liu, K Zhang, Q Zhang, J Ye - Wear, 2023 - Elsevier
Prior studies suggest mechanical interlocking, preferential adhesion of polar polymers, and
PTFE tribochemistry all contribute to the wear reduction in polar polymer-filled PTFE …

Maintaining low friction coefficient and ultralow wear in metal-filled PTFE composites

S Ullah, FM Haque, MA Sidebottom - Wear, 2022 - Elsevier
Many reinforcing fillers (particles, fibers, and platelets) can reduce the high wear rate of
polytetrafluoroethylene (PTFE)(K∼ 10− 4 to 10− 3 mm 3/Nm) by 10–1000 times. However …

Independently tuning surface and subsurface reinforcement to optimize PTFE wear

KI Alam, A Garodia, P Bragaw, DL Burris - Wear, 2022 - Elsevier
Recent studies have shown that PTFE achieves ultra-low wear rates through a combination
of surface and subsurface reinforcement. However, these two wear-reducing effects depend …

Tribochemical driven interfacial energy gradient in ultralow wear PTFE composite

J Wei, W Sun, K Liu, X Liu, J Ye - Tribology International, 2023 - Elsevier
Previous studies of certain ultralow wear PTFE composites highlighted the wear rate's
extremely high sensitivity to the interfacial surface energy gradient (Δγ) with a scale factor of …

Atomistic insights into anti-wear mechanisms and protective tribofilm formation in polytetrafluoroethylene composites

W Sun, J Ye, X Liu, K Liu - Journal of Tribology, 2022 - asmedigitalcollection.asme.org
Polytetrafluoroethylene (PTFE) has a low friction coefficient but poor wear resistance (k∼
10− 3 mm3/Nm) against various surfaces. Early mechanical modeling suggests the …

Coating architects: Manipulating multiscale structures to optimize interfacial properties for coating applications

C Wang, GO Brown, DL Burris… - ACS Applied Polymer …, 2019 - ACS Publications
Polymeric coatings are ideal materials for the surface modification of many solid substrates.
The interfacial properties of these coatings, ie, surface energy and tribological features …

Influence of grinding energy in morphology and tribological performance of self-lubricating polymeric blends PAEK+ PTFE

D Salvaro, JMW Dudy, F de Oliveira Palheta, C Binder… - Wear, 2023 - Elsevier
Improving the energy efficiency of mechanical systems and reducing the usage of lubricant
oils and related additives are challenging tasks of the 21st century. Consequently, the …