Electrodeposition of alginic acid and composite films

被引:132
作者
Cheong, M. [1 ]
Zhitomirsky, I. [1 ]
机构
[1] McMaster Univ, Dept Mat Sci & Engn, Hamilton, ON L8S 4L7, Canada
关键词
Alginate; Hydroxyapatite; Titanium oxide; Film; Electrodeposition;
D O I
10.1016/j.colsurfa.2008.06.019
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Electrodeposition method has been developed for the fabrication of alginic acid films. The deposition yield has been studied using a quartz crystal microbalance. The co-deposition of alginic acid, hydroxyapatite (HA), TiO2 and chitosan resulted in the fabrication of novel nanocomposite films. Deposit composition can be varied by the variation of HA and TiO2 concentration in the solutions. The method enabled the formation of films of different thickness in the range of 0.1-3 mu m. Obtained films were studied by X-ray diffraction, thermogravimetric analysis, differential thermal analysis, scanning electron microscopy and Fourier transform infrared spectroscopy. Composite films showed corrosion protection of shape memory alloy substrates in Ringer's physiological solutions. The mechanism of deposition is discussed. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:73 / 78
页数:6
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