Paper Title:
Surface Modification of Biomedical Magnesium Alloys by PHB
  Abstract

Magnesium alloys are potential in biomedical materials, but their corrosion rates are high in human body fluid so that they can not be used enough time. Therefore, to improve the anti-corrosion property of the alloys is important for their application in biomedical materials. In the work, a new coating was prepared from poly (3-hydroxybutyrate) (PHB), a biopolymer used as a sustained release carrier of drugs. The effect of the PHB coating was studied by electrochemical tests, scanning electron microscope (SEM) and weight loss corresponding with the corrosion time. The result showed the sample coating PHB have a higher corrosion potential than one before coating PHB, that is, PHB coating is effective for improvement of corrosion resistant of the alloy. Moreover, the corrosion state on the surface is even by SEM, implied the corrosion rate of the PHB coating is divinable and controllable. Whereby, PHB should be suitable for anti-corrosion of magnesium alloys applying in biomedical materials.

  Info
Periodical
Advanced Materials Research (Volumes 146-147)
Edited by
Sihai Jiao, Zhengyi Jiang and Jinglong Bu
Pages
1170-1173
DOI
10.4028/www.scientific.net/AMR.146-147.1170
Citation
X. L. Ma, Y. R. Lv, Z. X. Gao, G. X. Cheng, "Surface Modification of Biomedical Magnesium Alloys by PHB", Advanced Materials Research, Vols. 146-147, pp. 1170-1173, 2011
Online since
October 2010
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$32.00
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