Preparation, tribological properties and biocompatibility of fluorinated graphene/ultrahigh molecular weight polyethylene composite materials

详细信息    查看全文

• 作者：L. Xu^a ; ^b ; Y. Zheng^a ; Z. Yan^a ; W. Zhang^a ; J. Shi^a ; F. Zhou^b ; X. Zhang^b ; J. Wang^b ; J. Zhang^b ; ^{junyanzh@yahoo.com" class="auth_mail" title="E-mail the corresponding author} ; B. Liu^a ; ¹ ; ^{liubkq@lzu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Ultrahigh molecular weight polyethylene ; Fluorinated graphene ; Tribological properties ; Biocompatibility
• 刊名：Applied Surface Science
• 出版年：2016
• 出版时间：1 May 2016
• 年：2016
• 卷：370
• 期：Complete
• 页码：201-208
• 全文大小：4254 K

文摘

Fluorinated graphene (FG)/ultra-high molecular weight polyethylene (UHMWPE) composites were successfully prepared by ultrasonic dispersion and liquid thermoforming method. The mechanical and tribological properties of pure UHMWPE and FG/UHMWPE composites were investigated using micro-hardness tester and high-speed reciprocating friction tester. The results showed that: adding FG could not only increase the micro-hardness of the composites, but also decrease the wear volume of the composite significantly. The friction coefficients of the composites were also reduced with the increasing of FG content. In addition, the MC3T3-E1 cells adhered and grew well on the surface of the FG/UHMWPE composites as observed by SEM and fluorescence microscope, indicating the addition of FG did not affect the morphology and activity of the cells. The FG/UHMWPE composites exhibited excellent mechanical properties, tribological properties and biocompatibility, which could be used as the potential artificial joint replacement material.