塑料科技2025，Vol.53Issue(4)：21-26,6.DOI:10.15925/j.cnki.issn1005-3360.2025.04.004
热处理改性对PTFE/PEEK多孔保持架材料摩擦学性能的影响研究
Study on Effect of Heat Treatment Modification on Tribological Properties of PTFE/PEEK Porous Cage Materials
摘要
Abstract
To enhance the self-lubricating properties of the PTFE/PEEK porous material used for aerospace bearing cages,a PTFE/PEEK composite porous material was prepared using the Fused Deposition Modeling(FDM)process,followed by thermal treatment modification.The unmodified porous PTFE/PEEK materials were used as the control group to carry out the microstructure characterization and macroscopic tribological performance tests.The results show that the heat treatment modified PTFE/PEEK porous material has obvious pore characteristics and reasonable pore size.Under dry friction conditions,the low bearing capacity of the pore wall of the unmodified material can easily lead to the wear of the bearing components,the average friction factor of the modified dense specimen is reduced by about 35.06%,while the average friction factor of the porous specimen is reduced by more than 40%.Under the oil-poor lubrication conditions,the average friction factor of the unmodified porous sample is lower than that of the dense specimen.Under the oil-poor lubrication condition,the average friction factor of unmodified porous specimens is reduced by 28.03%compared with that of dense specimens,while the average friction factor of modified porous specimens is reduced by 54.65%,which indicates that heat treatment modification can not only effectively enhance the degree of crystallization of the surface layer of the porous material and load-bearing capacity,but also be of great importance for improving the self-lubricating performance of porous PTFE/PEEK aerospace bearing cage materials.关键词
热处理改性/自润滑/多孔结构/聚醚醚酮/聚四氟乙烯Key words
Heat treatment modification/Self-lubricating/Porous structure/PEEK/PTFE分类
通用工业技术引用本文复制引用
赵训茶,王文文,刘洁,汤超,刘鹏..热处理改性对PTFE/PEEK多孔保持架材料摩擦学性能的影响研究[J].塑料科技,2025,53(4):21-26,6.基金项目
国家自然科学基金(31801632) （31801632）
