Bio-tribological studies of Structalit/UHMWPE composites as an alternative to UHMWPE for hip joint application

被引：8
|
作者：
Hirwani, Jaswant Kumar [1 ]
Sinha, Sujeet K. [1 ]
机构：
[1] Indian Inst Technol Delhi, Mech Engn Dept, New Delhi 110016, India
来源：
WEAR | 2023年 / 518卷
关键词：
Structalit; UHMWPE; Biotribology; Epoxy; Cross-shear; MOLECULAR-WEIGHT POLYETHYLENE; BOUNDARY LUBRICATION; FRACTURE-TOUGHNESS; CARBON NANOTUBES; EPOXY COMPOSITES; WEAR DURABILITY; CFR-PEEK; FRICTION; BEHAVIOR; OXIDATION;
D O I：
10.1016/j.wear.2023.204630
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
In this study, epoxy based composites are evaluated for their mechanical and bio-tribological properties to find an alternative to UHMWPE liner material for hip joints. Structalit/UHMWPE composites were successfully developed with excellent filler-matrix bonding. Lower friction and wear of the composite (with 24 wt% of UHMWPE) against CoCrMo are attributed to the higher bulk mechanical strength and lower interfacial shear strength. Additionally, lubrication was supported by heterogeneity driven lubricant flow at the composite pin surface. Burnishing, abrasion, and protuberances were main surface damage mechanisms of UHMWPE whereas composite had few micro-cracks on its surface when filler loading was less.
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页数：16
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