Wear Resistance,Cytotoxicity and Antibacterial Properties of Polyetheretherketone Composite Modified by Carbon Fiber and Black Phosphorus

• 作者: Jingdan Li Qian Liang Wen Qin Jing Ma
• 来源期刊: 仿生工程学报（英文版）
• 年，卷（期）: 2022,（1）
• 所属期刊栏目: RESEARCH ARTICLES
• 页码范围: 155-166
• 页数: 12页
• 语种: 英文

摘要

High wear resistance,low cytotoxicity and excellent antibacterial properties are the basis for osseointegration of implant materials.Polyetheretherketone(PEEK)has been considered as a potential implant material due to its excellent biocom-patibility,natural radiolucency and mechanical properties.In this work,to improve the wear resistance,cytotoxicity and antibacterial properties of PEEK,carbon fiber(CFR)and Black Phosphorus(BP)were used to synergistically modify PEEK by two methods,deposition of BP coating on CFR-PEEK and BP/CFR-PEEK coating on Ti6A14V(TC4)through electro-static spraying.After CFR and BP synergistically modified PEEK,the friction coefficient of BP coating on CFR-PEEK and BP/CFR-PEEK coating were 0.14±0.01 and 0.09±0.02,respectively.The wear volume of BP coating on CFR-PEEK(30.54±1.32)was higher than that of BP/CFR-PEEK coating(9.46±1.32),which indicated that BP/CFR-PEEK coating showed high wear resistance.The difference in wear resistance may be caused by the fact that BP was not easily oxidized in BP/CFR-PEEK coating.In addition,BP coating on CFR-PEEK and BP/CFR-PEEK coating showed no obvious cytotoxicity to L929 cell and presented excellent antibacterial efficiency(up to 94.5％±2.8％and 96.0％±3.8％,respectively)against Staphy-lococcus aureus(S.aureus).It was concluded that BP/CFR-PEEK coating exhibited high wear resistance,low cytotoxicity and excellent antibacterial properties against S.aureus,which might provide a foundation for osseointegration of implants.