Corrosion protection performance of porous strontium hydroxyapatite coating on polypyrrole coated 316L stainless steel

被引：80
作者：
Gopi, D. [1 ,2 ]
Ramya, S. [1 ]
Rajeswari, D. [2 ,3 ]
Kavitha, L. [2 ,3 ]
机构：
[1] Periyar Univ, Dept Chem, Salem 636011, Tamil Nadu, India
[2] Periyar Univ, Ctr Nanosci & Nanotechnol, Salem 636011, Tamil Nadu, India
[3] Periyar Univ, Dept Phys, Salem 636011, Tamil Nadu, India
来源：
COLLOIDS AND SURFACES B-BIOINTERFACES | 2013年 / 107卷
关键词：
316L stainless steel; Strontium hydroxyapatite; Biopolymer; Bilayer coatings; Electrochemical deposition; CALCIUM-PHOSPHATE COATINGS; PULSED-LASER DEPOSITION; ELECTROPHORETIC DEPOSITION; ELECTRODEPOSITION; TITANIUM; SUBSTRATE; ALLOY; SS; OSTEOBLAST; RESISTANCE;
D O I：
10.1016/j.colsurfb.2013.01.065
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
Polypyrrole/strontium hydroxyapatite bilayer coatings were achieved on 316L stainless steel (316L SS) by the electropolymerisation of pyrrole from sodium salicylate solution followed by the electrodeposition of porous strontium hydroxyapatite. The formation and the morphology of the bilayer coatings were characterised by Fourier transform infrared spectroscopy (FT-IR) and high resolution scanning electron microscopy (HRSEM), respectively. The corrosion resistance of the coated 316L SS specimens was investigated in Ringer's solution by electrochemical techniques and the results were substantiated with inductively coupled plasma atomic emission spectrometry (ICP-AES). The passive film underneath the polypyrrole layer is effective in protecting 316L SS against corrosion in Ringer's solution. Moreover, we believe that the top porous strontium hydroxyapatite layer can provide potential bioactivity to the 316L SS. (C) 2013 Elsevier B.V. All rights reserved.
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收藏
页码：130 / 136
页数：7
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