Electrophoretic co-deposition of polyvinyl alcohol (PVA) reinforced alginate-Bioglass® composite coating on stainless steel: Mechanical properties and in-vitro bioactivity assessment

Chen Q, Cabanas Polo S, Goudouri OM, Boccaccini AR (2014)


Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2014

Journal

Publisher: Elsevier

Book Volume: 40

Pages Range: 55-64

DOI: 10.1016/j.msec.2014.03.019

Abstract

PVA reinforced alginate-bioactive glass (BG) composite coatings were produced on stainless steel by a single step electrophoretic deposition (EPD) process. The present paper discusses the co-deposition mechanism of the three components and presents a summary of the relevant properties of the composite coatings deposited from suspensions with different PVA concentrations. Homogeneous composite coatings with compact microstructure and increased thickness, i.e. as high as 10 μm, were observed by scanning electron microscopy (SEM). The surface roughness of coatings with different PVA contents was slightly increased, while a significant increase of water contact angles due to PVA addition was detected and discussed. Improved adhesion strength of coatings containing different amounts of PVA was quantitatively and qualitatively confirmed by pull-off adhesion and cycled bending tests, respectively. In-vitro bioactivity tests were performed in simulated body fluid (SBF) for 0.5, 1, 2, 4, 7, and 14 days, respectively. The decomposition rate of the coatings was reduced with PVA content, and rapid hydroxyapatite forming ability of the composite coatings in SBF was confirmed by FTIR and XRD analyses. According to the results of this study, composite alginate-Bioglass® bioactive coatings combined with PVA are proposed as promising candidates for dental and orthopedic applications. © 2014 Elsevier B.V.

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How to cite

APA:

Chen, Q., Cabanas Polo, S., Goudouri, O.M., & Boccaccini, A.R. (2014). Electrophoretic co-deposition of polyvinyl alcohol (PVA) reinforced alginate-Bioglass® composite coating on stainless steel: Mechanical properties and in-vitro bioactivity assessment. Materials Science and Engineering C, 40, 55-64. https://dx.doi.org/10.1016/j.msec.2014.03.019

MLA:

Chen, Qiang, et al. "Electrophoretic co-deposition of polyvinyl alcohol (PVA) reinforced alginate-Bioglass® composite coating on stainless steel: Mechanical properties and in-vitro bioactivity assessment." Materials Science and Engineering C 40 (2014): 55-64.

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