Surface modification of an Mg-1Ca alloy to slow down its biocorrosion by chitosan
Surface modification of an Mg-1Ca alloy to slow down its biocorrosion by chitosan
复制标题
壳聚糖对 Mg-1Ca 合金进行表面改性以减缓其生物腐蚀
DOI：
10.1088/1748-6041/4/4/044109
复制
发表时间：
2009-08-01
影响因子：
4
通讯作者：
Zhang, D. Y.
中科院分区：
文献类型：
--
作者：
Gu, X. N.;Zheng, Y. F.;Zhang, D. Y.
研究了不同壳聚糖涂层Mg-1Ca合金浸泡腐蚀前后的表面形貌，探讨了壳聚糖涂层对减缓生物腐蚀的作用。结果表明，镁钙合金经壳聚糖包覆后，其耐蚀性得到了提高，且与壳聚糖的分子量和包覆层数有关。分子量为2.7 × 105的壳聚糖包覆镁钙合金6层后，镁钙合金表面光滑完整，在模拟体液中的耐蚀性最好。
The surface morphologies before and after immersion corrosion test of various chitosan-coated Mg-1Ca alloy samples were studied to investigate the effect of chitosan dip coating on the slowdown of biocorrosion. It showed that the corrosion resistance of the Mg–Ca alloy increased after coating with chitosan, and depended on both the chitosan molecular weight and layer numbers of coating. The Mg–Ca alloy coated by chitosan with a molecular weight of 2.7 × 105 for six layers has smooth and intact surface morphology, and exhibits the highest corrosion resistance in a simulated body fluid.