壳聚糖-银离子复合涂层对钴铬钼合金耐盐腐蚀性能的影响

IF 0.8 Q4 MATERIALS SCIENCE, BIOMATERIALS

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2023-09-30 DOI:10.15259/pcacd.28.007

Bożena Łosiewicz, Patrycja Osak, Julian Kubisztal

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引用次数: 1

摘要

测定了壳聚糖-银(I) [Ag(I)]离子复合涂层在CoCrMo牙科合金表面在0.9%氯化钠(NaCl)溶液中37℃的耐腐蚀性能。在2% (V / V)的乙酸水溶液中，用1 g dm-3壳聚糖和10 g dm-3硝酸银，在20 V下室温电泳沉积30 s，得到了新型复合壳聚糖- ag (I)离子涂层。利用能量色散光谱和傅里叶变换红外光谱对其化学成分进行了分析。我们用扫描开尔文探针研究了表面形貌和电子特性。用电化学阻抗谱法测定了镀层的电化学腐蚀机理和动力学。壳聚糖- Ag(I)离子复合涂层中Ag的含量为1.9±1 wt.%。壳聚糖和Ag(I)离子在水溶液中共沉积可用于修饰CoCrMo合金表面，获得具有抗菌性能的新型涂层。

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THE EFFECT OF A COMPOSITE CHITOSAN-SILVER(I) ION COATING ON THE CORROSION RESISTANCE OF THE COBALT-CHROMIUM-MOLYBDENUM ALLOY IN SALINE SOLUTION

We determined the in vitro corrosion resistance of the composite chitosan-silver(I) [Ag(I)] ion coating on the cobalt-chromium-molybdenum (CoCrMo) dental alloy in a 0.9% sodium chloride (NaCl) solution at 37°C. We obtained the novel composite chitosan–Ag(I) ion coating by electrophoretic deposition at 20 V for 30 s at room temperature in a 2% (v/v) aqueous solution of acetic acid with 1 g dm–3 chitosan and 10 g dm–3 silver nitrate. We evaluated the chemical composition with energy dispersive spectroscopy and Fouriertransform infrared spectroscopy. We investigated surface topography and electronic properties with a scanning Kelvin probe. We determined the mechanism and kinetics of the electrochemical corrosion of the obtained coatings by electrochemical impedance spectroscopy. The Ag content in the composite chitosan–Ag(I) ion coating was 1.9 ± 1 wt.%. The cataphoretic co-deposition of chitosan and Ag(I) ions in an aqueous solution can be used to modify the CoCrMo alloy surface to obtain new coatings with antibacterial properties.

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来源期刊

Progress on Chemistry and Application of Chitin and its Derivatives MATERIALS SCIENCE, BIOMATERIALS-

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： Progress in the Chemistry and Application of Chitin and its Derivatives is an annual journal focused on all aspects of production, modification, enzymology and application of chitin and its many derivatives, including chitosan. The journal publishes full-length papers as well as invited reviews. To be considered, papers must present original research that has not been published or accepted for publication elsewhere. The language of the journal will be English.