A method of adding surfactant-assisted ball milling to prepare β-tricalcium phosphate powder
A technology of surfactant and tricalcium phosphate powder, which is applied in chemical instruments and methods, phosphorus compounds, inorganic chemistry, etc., can solve the problem of β-tricalcium phosphate multi-impurity phase, imbalance of calcium-phosphorus atomic ratio, wide range of particle size distribution, etc. problems, to achieve the effect of solving the imbalance of raw material ratio, sufficient solid phase reaction and improving purity
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Embodiment 1
[0028] (1) Measure 1% of surfactant KW-300 into ethanol and ultrasonically disperse for 10 minutes. The proportion of ethanol is 0.5% of the total weight of calcium and phosphorus raw materials. Take by weighing 49.58g calcium hydrogen phosphate (CaHPO 4 2H 2 O) and 14.42g calcium carbonate (CaCO 3 );
[0029] (2) Transfer the raw materials and ethanol containing surface activity into the ball milling tank together, and ball mill and mix them for 3 hours at a speed of 300 r / min on the planetary ball mill, and the powder raw materials after mixing will not stick to the tank and balls;
[0030] (3) place the mixed slurry in an oven to dry at a temperature of 50° C. to remove ethanol, and then pass through a 50-mesh sieve;
[0031] (4) Put the sieved powder into a muffle furnace for calcination at 850° C. for 5 hours to obtain β-tricalcium phosphate powder.
[0032] figure 1 For the TG-DSC curve of the surfactant KW-300 added in this embodiment, it can be seen from the figur...
Embodiment 2
[0035] (1) Measure 2.5% of surfactant KW-300 into ethanol and ultrasonically disperse for 30 minutes. The proportion of ethanol is 1.5% of the total weight of calcium and phosphorus raw materials. Take by weighing 49.58g calcium hydrogen phosphate (CaHPO 4 2H 2 O) and 14.42g calcium carbonate (CaCO 3 );
[0036] (2) Transfer the raw materials and ethanol containing surface activity into a ball mill tank together, and ball mill and mix them for 9 hours at a speed of 400 r / min on a multi-dimensional swing nano ball mill, and the powder will not stick to the tank after mixing;
[0037] (3) place the mixed slurry in an oven to dry at a temperature of 60° C. to remove ethanol, and then pass through a 50-mesh sieve;
[0038] (4) Put the sieved powder into a muffle furnace and calcinate at 900° C. for 3 hours to obtain β-tricalcium phosphate powder.
[0039] Figure 4 The XRD spectrum of the β-tricalcium phosphate powder prepared for this example was compared with the standard s...
Embodiment 3
[0041] (1) Measure 5% of surfactant KW-300 into ethanol and disperse it ultrasonically for 25 minutes. The ratio of ethanol is 3% of the total weight of calcium and phosphorus raw materials. Take by weighing 49.58g calcium hydrogen phosphate (CaHPO 4 2H 2 O) and 14.42g calcium carbonate (CaCO 3 );
[0042] (2) Transfer the raw materials and ethanol containing surface activity into a ball mill tank, and ball mill and mix them for 6 hours at a speed of 500 r / min on a planetary ball mill, and the powder will not stick to the tank after mixing;
[0043] (3) Place the mixed slurry in an oven to dry at a temperature of 70° C. to remove ethanol, and then pass through a 50-mesh sieve;
[0044] (4) The sieved powder was put into a muffle furnace and calcined at 950° C. for 3 hours to obtain β-tricalcium phosphate powder.
[0045] The test results of the β-tricalcium phosphate powder prepared in this example are similar to those in Example 1 and Example 2, and will not be repeated h...
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