A method for preparing α-tricalcium phosphate by low-temperature calcination

A tricalcium phosphate, low-temperature calcination technology, applied in chemical instruments and methods, phosphorus compounds, nanotechnology for materials and surface science, etc., can solve the problems of long solidification time and poor mechanical properties of α-tricalcium phosphate, etc. Achieve the effect of low cost, low energy consumption and simple process
CN107188148BActive Publication Date: 2019-07-26SHANDONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG UNIV
Publication Date
2019-07-26

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Abstract

The invention discloses a method of preparing alpha-tricalcium phosphate through low temperature calcining. According to the method, alpha-cyclodextrin is taken as the template, Ca(NO3)2.4H2O, and (NH4)2HPO4 are taken as the raw materials, the standing time of the solution is controlled, the pH is adjusted by ammonia liquor, a chemical precipitation method is adopted to obtain an amorphous tricalcium phosphate precursor, the amorphous tricalcium phosphate precursor is dried by a special mode, then the precursor is calcined for 2 to 4 hours at a constant temperature of 600 to 650 DEG C, and finally the precursor is cooled in the furnace to obtain the alpha-tricalcium phosphate. The technology is simple, the energy consumption is little, and the cost is low. The detection on the curing performance of alpha-tricalcium phosphate and mechanical properties after curing shows that the performance of prepared alpha-tricalcium phosphate is better than that of alpha-tricalcium phosphate prepared by a conventional technology.
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Description

technical field

[0001] The invention relates to the technical field of bone cement biological material and its preparation, in particular to a method for preparing α-tricalcium phosphate by low-temperature calcination. Background technique

[0002] With the development of material science, bioceramic materials have become an important part of today's biomedical engineering because of their special functions of repairing, replacing and regenerating body tissues. Phosphate bone cement (CPC) has good biocompatibility and bioactivity, mild reaction after implantation into the human body, basically no heat release, and can be freely shaped according to the defect site during the operation. extensive attention of researchers from all over the world. People have successively developed a series of calcium phosphate bone cement products to meet the needs of different parts of human hard tissue repair.

[0003] Calcium phosphate commonly used in the field of biomaterials mainly has ...

Claims

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