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Characterization of the chitosan-tungsten composite coating obtained by electrophoretic deposition
Progress in Organic Coatings ( IF 6.6 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.porgcoat.2020.105631 José Anderson Machado Oliveira , Renato Alexandre Costa de Santana , Alcides de Oliveira Wanderley Neto
Progress in Organic Coatings ( IF 6.6 ) Pub Date : 2020-06-01 , DOI: 10.1016/j.porgcoat.2020.105631 José Anderson Machado Oliveira , Renato Alexandre Costa de Santana , Alcides de Oliveira Wanderley Neto
Abstract In this research, a new type of composite coating made of chitosan-tungsten (Chit-W), was obtained by the process of electrophoretic deposition (EPD) and characterized. The deposition parameters (potential and pH) were evaluated. The results of surface morphology (SEM), chemical composition (EDS), crystallography (XRD) and infrared spectroscopy (FT-IR) confirmed the deposition of the composite film consisting of a tungsten impregnated chitosan matrix with different morphology types. Corrosion resistance results obtained by potentiodynamic polarization (PP) and electrochemical impedance spectroscopy (EIS) showed that the coatings can be applied for temporary protection of exposed steel (1020) in NaCl (3.5 %) medium. Therefore, this work proves the deposition of a new class of chitosan-based composite materials with potential applications in different technological sectors.
中文翻译:
电泳沉积得到的壳聚糖-钨复合涂层的表征
摘要 本研究通过电泳沉积(EPD)工艺获得了一种新型壳聚糖-钨(Chit-W)复合涂层,并对其进行了表征。评估沉积参数(电位和 pH 值)。表面形貌 (SEM)、化学成分 (EDS)、晶体学 (XRD) 和红外光谱 (FT-IR) 的结果证实了由不同形态类型的钨浸渍壳聚糖基质组成的复合膜的沉积。通过动电位极化 (PP) 和电化学阻抗谱 (EIS) 获得的耐腐蚀性结果表明,该涂层可用于在 NaCl (3.5%) 介质中对暴露的钢 (1020) 进行临时保护。所以,
更新日期:2020-06-01
中文翻译:
电泳沉积得到的壳聚糖-钨复合涂层的表征
摘要 本研究通过电泳沉积(EPD)工艺获得了一种新型壳聚糖-钨(Chit-W)复合涂层,并对其进行了表征。评估沉积参数(电位和 pH 值)。表面形貌 (SEM)、化学成分 (EDS)、晶体学 (XRD) 和红外光谱 (FT-IR) 的结果证实了由不同形态类型的钨浸渍壳聚糖基质组成的复合膜的沉积。通过动电位极化 (PP) 和电化学阻抗谱 (EIS) 获得的耐腐蚀性结果表明,该涂层可用于在 NaCl (3.5%) 介质中对暴露的钢 (1020) 进行临时保护。所以,