Preparation and Characterization for a Co-deposited Hybrid Coating of Calcium Phosphate/Chitosan on Ti Alloy Surface

Abstract

Abstract: In this work, a novel electrodeposition has been developed to prepare a hybrid coating of calcium phosphate/chitosan on the surface of Ti alloy. The surface morphologies, chemical compositions and crystalline structures of the hybrid coatings are characterized by using various spectroscopic techniques, such as SEM, XPS, FTIR and XRD etc.. The results indicate that a hybrid coating of calcium phosphate/chitosan is formed on the metal surface when adding minor of chitosan to the electrolyte of calcium phosphate under the electrodeposition condition. The morphology of the hybrid coating is significantly different with that of the pure calcium phosphate. It is also shown that the bonding strength of the hybrid coating to the metal substrate has been increased as high as 2.6 MPa because of the incorporation of chitosan in the coating. Meanwhile, the chitosan is a natural polymer compound with good biological-properties, it is proposed to be of a high biocompatibility and an excellent biocompatibility when forming a hybrid coating of calcium phosphate/chitosan on a metal substrate. It means that the electrodeposited hybrid coating of calcium phosphate/chitosan developed in our lab may become a new promising implant biological material.

Key words: CaP film coating, Chitosan, Electrochemical co-deposition, Biological material

CLC Number:

O646

TrendMD:

HU Ren, HU Hao-Bing, LIN Chang-Jian  . Preparation and Characterization for a Co-deposited Hybrid Coating of Calcium Phosphate/Chitosan on Ti Alloy Surface[J]. Chem. J. Chinese Universities, 2002, 23(11): 2142.

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Preparation and Characterization for a Co-deposited Hybrid Coating of Calcium Phosphate/Chitosan on Ti Alloy Surface

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