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A new technique for preparation of porous bioceramics with controllable macrostructures

Published online by Cambridge University Press:  09 July 2018

Chuisheng Zeng ,
Jing Zhang ,
Yanjun Zeng ,
Xiaoming Chen  and
Yuhua Yan
Chuisheng Zeng
Affiliation:
College of Bio-Information, Chongqing University of Post & Telecommunication, Chongqing 400065, China
Jing Zhang
Affiliation:
Neuroscience PET Laboratory, Department of Psychiatry, Mt. Sinai Medical Center, New York 100029, USA
Yanjun Zeng*
Affiliation:
Biomechanics & Medical Information Institute, Beijing University of Technology, Beijing 100022, China
Xiaoming Chen
Affiliation:
Biomedical Materials and Engineering Center, Wuhan University of Technology, Wuhan 430070, China
Yuhua Yan
Affiliation:
Biomedical Materials and Engineering Center, Wuhan University of Technology, Wuhan 430070, China
*
*E-mail: [email protected]
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Abstract

The purpose of this study was to develop a simple and economic method for the preparation of porous bioceramics with controllable macrostructure. Raw materials, including very small organic foam balls as the pore-creating reagent, wax (or paraffin) as the solvent, and oleic acid as the surface active agent, were selected along with bioactive materials such as β-TCP ceramic powder as the main component. The selected components were mixed into a slurry at 30–120ºC and shaped into a green body with a hot die-casting machine at 30–90ºC. The green body was then sintered and porous bioceramics were obtained. The main characteristics of porous bioceramics such as weight loss, compressive strength, connection and size of pores, percolation rate of water, apparent porosity and bulk density were measured. The results indicated that the apparent porosity and the specific surface area were large; the pores were connected in three dimensions and the compressive strength was >1.6 MPa. This study demonstrated that the methods used here are simple and effective in generating porous bioceramics with controllable macrostructures.

Keywords

apparent porositybiodegradationbioactive materialsporous bioceramicsceramic biosupportsorganic foam ball
Type
Research Article
Information
Clay Minerals , Volume 44 , Issue 3 , September 2009 , pp. 411 - 416
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2009

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