A kind of composite bone cement and its preparation method
A bone cement, composite technology, applied in the direction of prosthesis, tissue regeneration, medical science, etc., can solve the problems that have not been reported, and achieve the effect of improving injection performance, increasing antibacterial properties, and excellent performance.
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Embodiment 1
[0024] The calcium sulfate salt is calcium sulfate dihydrate, the calcium phosphate salt is tricalcium phosphate, and the additive is polyethylene glycol, and the method is as follows:
[0025] (1) Take by weighing 90% calcium sulfate dihydrate (99%) and tricalcium phosphate (1%) according to mass percentage, supplemented with polyethylene glycol, ball mill in ball mill and mix uniformly, polyethylene glycol accounts for 2% of the total mass 10%;
[0026] (2) After drying and grinding in an oven at 70°C, the crystallization reaction was carried out in an autoclave at a temperature of 135°C and a pressure of 0.2 MPa, and the reaction time was 8 hours;
[0027] (3) After the reaction, put it into an oven at 100° C. to dry for 12 hours, and grind it evenly to obtain bone cement powder;
[0028] (4) Weigh 5 g of bone cement powder, add the powder into water according to the mass ratio of powder to liquid of 3:1, stir evenly, and solidify to obtain bone cement.
[0029] The micro...
Embodiment 2
[0032] The calcium sulfate salt is calcium sulfate dihydrate, the calcium phosphate salt is composed of tricalcium phosphate and strontium hydroxyapatite, and the additive is polyethylene glycol, and the method is as follows:
[0033] (1) Take by weighing 95% calcium sulfate dihydrate (65%) and tricalcium phosphate, strontium hydroxyapatite (35%) according to mass percentage, supplemented with polyethylene glycol, ball mill in a ball mill and mix uniformly, polyethylene glycol Glycols account for 5% of the total mass;
[0034] (2) Take it out, dry and grind it in an oven at 70°C, and then conduct a crystallization reaction in an autoclave at a temperature of 120°C and a pressure of 0.1 MPa, and the reaction time is 8 hours;
[0035] (3) After the reaction, put it into an oven at 80° C. to dry for 12 hours, and grind it evenly to obtain bone cement powder;
[0036] (4) Weigh 5 g of bone cement powder, add the powder into water according to the mass ratio of powder to liquid of...
Embodiment 3
[0039] The calcium sulfate salt is calcium sulfate dihydrate, the calcium phosphate salt is hydroxyapatite, and the additive is polyethylene glycol, and the method is as follows:
[0040] (1) Take by weighing 99% calcium sulfate dihydrate (90%) and hydroxyapatite (10%) according to mass percentage, supplemented with polyethylene glycol, ball mill and mix uniformly in a ball mill, polyethylene glycol accounts for the total mass 1%;
[0041] (2) Take it out, dry and grind it in an oven at 70°C, and then conduct a crystallization reaction in an autoclave with a temperature of 145°C and a pressure of 0.26MPa, and the reaction time is 5h;
[0042] (3) After the reaction, put it into an oven at 90° C. to dry for 12 hours, and grind it evenly to obtain bone cement powder;
[0043] (4) Weigh 5 g of bone cement powder, add the powder into water according to the mass ratio of powder to liquid of 2.5:1, stir evenly, and solidify to obtain bone cement.
[0044]The prepared bone cement p...
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