Peer-reviewed veterinary case report
The Modification and Self-Lubricating Properties of CNTs-Enhanced PEEK Porous Composites Based on FDM.
- Year:
- 2025
- Authors:
- Zhang Z et al.
- Affiliation:
- School of Mechanical and Electrical Engineering · China
Abstract
Porous composites utilize their unique pore structures to effectively store and release lubricants, providing a fundamental mechanism for continuous lubrication in self-lubricating bearing cages. This study investigates carbon nanotube (CNT)-reinforced PEEK porous composites fabricated by fused deposition modeling (FDM) and subsequently subjected to heat treatment to improve tribological properties. Results show that incorporating 3 wt% CNTs significantly enlarges average pore size from 0.08 μm to 11.62 μm and increases porosity, resulting in an oil retention rate exceeding 80%. The composites achieve a 26.4-63.4% reduction in friction coefficient under dry sliding conditions at room temperature. After heat treatment, the material maintains a stable friction coefficient below 0.30 during high-temperature dry friction, demonstrating excellent lubricant slow-release capability and thermal stability.
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Search related cases →Original publication: https://europepmc.org/article/MED/41003047