Method for preparing medical three-dimensional gradient netlike carbon fiber/ hydroxyapatite (HA)/ medical stone composite material
A composite material and carbon fiber technology, which is applied in medical science, anodic oxidation, prosthesis, etc., can solve the problems of low strength and poor toughness, and achieve the effect of good density and strength, less defects, and improved bonding ability
Inactive Publication Date: 2012-08-22
LIAONING UNIVERSITY OF TECHNOLOGY
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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The invention discloses a method for preparing a medical three-dimensional gradient netlike carbon fiber/ hydroxyapatite (HA)/ medical stone composite material. The method comprises the following steps of: weaving carbon fibers into a three-dimensional gradient netlike carbon fiber skeleton; performing surface modification treatment on the three-dimensional gradient netlike carbon fiber skeleton;and making nano HA and nano medical stone composite ceramic slurry, compounding the composite ceramic slurry and the three-dimensional gradient netlike carbon fiber skeleton by adopting a centrifugalforming machine, sintering, and thus obtaining the composite material. The method has the advantages that the three-dimensional gradient netlike carbon fiber reinforcing effect is good, much HA can be compounded in a high-porosity area, and the composite material has good surface bioactivity; a low-porosity area has high carbon fiber content, so that the mechanical property of the HA matrix is improved; size completeness, few defects and high density of a blank of the composite material can be ensured by adopting the centrifugal grouting forming machine; and the nano medical stone added into the HA matrix contains a large quantity of trace elements which are beneficial to human body, and is used as a reinforcing phase for improving the strength of the HA matrix.
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Property | Measurement | Unit |
Particle size | 40.0 | nm |
Density | 3.17 | g/cm³ |
Particle size | 60.0 | nm |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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