期刊
JOURNAL OF BIONIC ENGINEERING
卷 14, 期 4, 页码 640-647出版社
SCIENCE PRESS
DOI: 10.1016/S1672-6529(16)60430-4
关键词
CF/PEEK biocomposites; surface oxidation treatment; lubrication; wear mechanism
资金
- National Natural Science Foundation of China [51575278, 51711530228]
- Science and Technology Project of Jiangsu Province [BY2016004-08, BA2015054]
- Fundamental Research Funds for the Central Universities [30910612203]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Jiangsu Key Laboratory of Advanced Micro/Nano Materials and Technologies
Carbon Fiber (CF) reinforced polyetheretherketone (PEEK) composite is one of the most promising implant biomaterials used in orthopedics. In this article, unfilled PEEK and CF/PEEK specimens were prepared by vacuum hot pressing method, and their tribological properties were evaluated by sliding against a cobalt-chromium-molybdenum (Co-Cr-Mo) alloy block. The influences of mass fraction of carbon fibers in CF/PEEK and the surface oxidation treatment of carbon fibers were explored. The results showed that the water contact angles on the surfaces of CF/PEEK specimens decreased, indicating that their surface wettability was improved. The hardness value of CF/PEEK was significantly improved, the friction coefficients of CF/PEEK were effectively reduced and its wear resistance was enhanced compared with unfilled PEEK. The leading effect on CF/PEEK tribological properties was the mass fraction of CF, followed by surface oxidation of CF, and the calf serum solution had better lubricity than that of saline and deionized water.
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