A kind of surface treatment method of nanometer magnesium oxide antibacterial agent
A nano-magnesium oxide surface treatment technology, which is applied in the surface treatment of nano-magnesia antibacterial agents, and in the field of surface treatment in which nano-magnesia is soaked in surface treatment solutions, can solve problems such as limited applications, and increase the degree of surface roughness and the number of surface defects. , The effect of antibacterial performance enhancement
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Embodiment 1
[0021] (1) First, the magnesium oxide is ball-milled with a planetary ball mill at a speed of 500r / min for 30 minutes until it reaches the nanometer level.
[0022] (2) Soak the nano magnesium oxide obtained in step (1) in the surface treatment solution of sodium chloride solution, sodium hydrogen phosphate solution, sodium dihydrogen phosphate solution, hydrochloric acid, shake well until the nano magnesium oxide is completely dispersed, soak for 1h, Na in the surface treatment solution + The total concentration is 1mol / L, and the ion concentration of hydrogen is 10 -4 mol / L.
[0023] (3) Centrifuge the nano magnesium oxide obtained in step (2) with a centrifuge at a speed of 7500 r / min for 6 minutes, and pour out the surface treatment solution after centrifugation. Add distilled water to wash to remove impurities adsorbed on the nano-magnesia product. The centrifuge rotates at 6500r / min for 5min, centrifuges and washes for several times, and centrifuges.
[0024] (4) Tran...
Embodiment 2
[0027] (1) First, the magnesium oxide is ball-milled with a planetary ball mill at a speed of 500r / min for 30 minutes until it reaches the nanometer level.
[0028] (2) Soak the nano magnesium oxide obtained in step (1) in the surface treatment solution of sodium chloride solution, sodium hydrogen phosphate solution, sodium dihydrogen phosphate solution, hydrochloric acid, shake well until the nano magnesium oxide is completely dispersed, soak for one hour In the surface treatment solution, Na + The total concentration is 3mol / L, and the hydrogen ion concentration is 10 -2 mol / L.
[0029] (3) Centrifuge the nano magnesium oxide obtained in step (2) with a centrifuge at a speed of 7500r / min for 6min, and pour out the surface treatment solution after centrifugation. Add distilled water to wash to remove impurities adsorbed on the nano-magnesia product. The centrifuge rotates at 6500r / min for 5min, centrifuges and washes for several times, and centrifuges.
[0030] (4) Transfe...
Embodiment 3
[0032] (1) First, the magnesium oxide is ball-milled with a planetary ball mill at a speed of 500r / min for 30 minutes until it reaches the nanometer level.
[0033] (2) Soak the nano magnesium oxide obtained in step (1) in magnesium chloride solution, magnesium nitrate solution, magnesium sulfate solution, magnesium carbonate, acid surface treatment solution, shake well until the nano magnesium oxide is completely dispersed, soak in the surface treatment solution for 1h Mg 2+ The total concentration is 2mol / L, and the hydrogen ion concentration is 10 -6 mol / L.
[0034] (3) Centrifuge the nano magnesium oxide obtained in step (2) with a centrifuge at a speed of 7500 r / min for 6 minutes, and pour out the surface treatment solution after centrifugation. Add distilled water to wash to remove impurities adsorbed on the nano-magnesia product. The centrifuge rotates at 6500r / min for 5min, centrifuges and washes several times, and centrifuges.
[0035] (4) Transfer the nano-magnesi...
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