Characterization of sol-gel coated 316L stainless steel for biomedical applications

被引：59

作者：

Hosseinalipour, S. M. ^{[2
]}

Ershad-langroudi, A. ^{[1
]}

Hayati, Amir Nemati ^{[2
]}

Nabizade-Haghighi, A. M. ^{[2
]}

机构：

[1] Iran Polymer & Petrochem Inst, PPF, CRSC Dept, Tehran, Iran

[2] Iran Univ Sci & Technol, Dept Met & Mat Engn, Tehran, Iran

来源：

PROGRESS IN ORGANIC COATINGS | 2010年 / 67卷 / 04期

关键词：

Sol-gel technique; Hybrid coatings; Electrochemical analysis; FTIR; CORROSION PROTECTION; COATINGS; PERFORMANCE; ALUMINUM; FILMS; METALS; FTIR;

D O I：

10.1016/j.porgcoat.2010.01.002

中图分类号：

O69 [应用化学];

学科分类号：

070301 [无机化学];

摘要：

Silica based organic-inorganic hybrid coatings were deposited on 316L stainless steel by sol-gel technique. The hybrid sols were prepared by hydrolysis and condensation of 3-methacryloxypropyltrimethoxysilane (TMSM) and tetraethylorthosilicate (TEOS) at different molar ratios. Electrochemical experiments were performed to evaluate the corrosion resistance properties of the coatings. Structural characterization of the coatings was performed using scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) spectroscopy. Contact angle measurement and cell morphology assay were performed to investigate the hydrophilicity and in vitro cytotoxicity of the coatings, respectively. The results indicate formation of a crack-free and highly adherent film acting as a protective barrier against the physiological medium. Corrosion resistance of hybrid coatings was influenced by the molar ratios of TMSM:TEOS. The best corrosion protection was obtained at TMSM:TEOS molar ratio of 1:1. Sol-gel coatings enhanced the hydrophilicity of 316L steel surfaces. Also, these coatings showed non-toxicity for L929 cells. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：371 / 374

页数：4

共 24 条

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