中国塑料 ›› 2022, Vol. 36 ›› Issue (6): 60-68.DOI: 10.19491/j.issn.1001-9278.2022.06.010

• 材料与性能 • 上一篇    下一篇

硼化钽增强聚醚醚酮复合涂层的制备及性能评价

黄素媛, 曹琳, 李卫, 林志丹(), 张鹏()   

  1. 暨南大学先进耐磨蚀及功能材料研究院,广州 510632
  • 收稿日期:2022-01-25 出版日期:2022-06-26 发布日期:2022-06-27
  • 通讯作者: 林志丹(1977—),男,教授,从事高分子材料改性研究,linzd@jnu.edu.cn
    张鹏(1983—),男,副研究员,从事金属生物医用材料改性研究,tzhangpeng@jnu.edu.cn
    E-mail:linzd@jnu.edu.cn;tzhangpeng@jnu.edu.cn
  • 基金资助:
    国家重点研发计划项目(2018YFB2002000);广东省基础与应用基础研究基金(2021A515012271)

Preparation and performance evaluation of tantalum boride⁃reinforced polyether ether ketone composite coatings

HUANG Suyuan, CAO Lin, LI Wei, LIN Zhidan(), ZHANG Peng()   

  1. Institute of Advances Wear & Corrosion Resistant and Functional Materials,Jinan University,Guangzhou 510632,China
  • Received:2022-01-25 Online:2022-06-26 Published:2022-06-27
  • Contact: LIN Zhidan, ZHANG Peng E-mail:linzd@jnu.edu.cn;tzhangpeng@jnu.edu.cn

摘要:

采用阴极电泳沉积技术在纯钛基板表面沉积聚醚醚酮(PEEK)/硼化钽(TaB2)复合涂层。采用透射电子显微镜、扫描电子显微镜、X射线衍射仪和摩擦磨损试验机等方式对电泳沉积液分散性、PEEK/TaB2复合涂层表面形貌、微观结构、结晶行为、摩擦学性能和生物学性能进行表征。结果表明,通过调节电泳沉积参数可以制备形貌均匀、具有一定厚度的PEEK/TaB2复合涂层,在390 ℃热处理后,涂层均匀致密无孔隙;热处理可以提高PEEK/TaB2涂层的结晶性能,TaB2颗粒的加入使PEEK涂层获得更高的结晶度;添加较低含量的TaB2颗粒时,复合涂层在小牛血清(fetal bovine serum,FBS)介质中表现出良好的摩擦学性能,与纯PEEK涂层相比,磨损率分别下降了48.1 %,69.1 %;但过量TaB2颗粒在PEEK基质中出现明显的团聚现象, 摩擦系数和磨损率呈现上升趋势;细胞实验表明,TaB2良好的生物活性促进了样品表面细胞增殖。

关键词: 电泳沉积, 聚醚醚酮, 硼化钽, 摩擦学

Abstract:

PEEK/TaB2 composite coatings were deposited on the surface of pure titanium substrates using a cathodic electrodeposition technique. Transmission electron microscopy, scanning electron microscopy, X?ray diffractometer, and friction and wear tester were used to characterize the suspension dispersion, surface morphology, microstructure, crystallinity, and tribological and biological properties of the composite coatings. The results indicated that there were a uniform morphology and a certain thickness for the composite coatings through adjusting the electrodeposition parameters. After thermal sintering at 390 ℃, the resulting coating became uniform and dense. Thermal sintering improved the crystalline properties of the PEEK/TaB2 composite coatings, and the addition of TaB2 particles led to a higher crystalline degree for the composite coatings. When a lower content of TaB2 particles was added, the composite coatings showed good tribological properties in a medium of fetal bovine serum. Their wear rates decreased by 48.1 %and 69.1 %compared to the pure PEEK coating. However, there was an evident aggregation of TaB2 particles at an excessive loading in the PEEK matrix, resulting in an increase in friction coefficient and wear rate. Cell experimental results indicated that TaB2 had a good bioactivity to promote cell proliferation on the sample surface.

Key words: electrodeposition, polyetheretherketone, tantalum boride, tribology

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