Surface activation of polyetheretherketone (PEEK) and formation of calcium phosphate coatings by precipitation
Surface activation of polyetheretherketone (PEEK) and formation of calcium phosphate coatings by precipitation
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DOI：
10.1023/a:1018535923173
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发表时间：
1997-11-01
影响因子：
3.7
通讯作者：
Vonmont, H
中科院分区：
文献类型：
--
作者：
Ha, SW;Kirch, M;Vonmont, H
研究了等离子体活化聚醚醚酮（PEEK）表面及其对过饱和磷酸钙溶液中涂层形成的影响。据观察，在N-2/O-2等离子体中的等离子体处理对PEEK表面的润湿性具有显著影响。等离子体处理后，接触角从85度降低到25度。用成骨细胞系进行的细胞培养试验表明，血浆活化对细胞活力并无不利影响。进行X射线光电子能谱（XPS）分析，以表征PEEK表面的化学组成。观察到O-1 s强度随着等离子体活化时间的增加而增加。在C-1 s峰处，观察到在较高结合能处出现肩部。在过饱和磷酸钙溶液中进行PEEK涂层。浸泡24天后，涂层厚度可达50 μ m。等离子体活化，然后在高度饱和的羟基磷灰石溶液中成核，对PEEK上的层的生长速率有积极的影响。化学分析表明，涂层由含碳酸盐的磷酸钙组成。
Plasma activation of polyetheretherketone (PEEK) surfaces and the influence on coating formation in a supersaturated calcium phosphate solution was investigated in this study. It was observed that plasma treatment in a N-2/O-2 plasma had a significant effect on the wettability of the PEEK surface. The contact angle decreased from 85 degrees to 25 degrees after plasma treatment. Cell culture testing with osteoblastic cell lines showed plasma activation not to be disadvantageous to cell viability. X-ray photoelectron spectroscopy (XPS) analysis was performed to characterize the chemical composition of the PEEK surfaces. It was observed that the O-1s intensity increased with plasma activation time. At the C-1s peak the appearance of a shoulder at higher binding energies was observed. Coating of PEEK was performed in a supersaturated calcium phosphate solution. Coating thicknesses of up to 50 mu m were achieved after 24 days of immersion. Plasma activation followed by nucleation in a highly saturated hydroxyapatite solution had a positive effect on the growth rate of the layer on PEEK. Chemical analysis revealed that the coating consists of a carbonate-containing calcium phosphate.