Preparation method of boron nitride composite polishing solution
A composite polishing and boron nitride technology, which is applied in the direction of polishing compositions containing abrasives, can solve problems such as difficult to overcome hard disk surface, micro scratches and particle residue, computer hard disk damage, etc., and achieve excellent anti-corrosion effect and low production cost. Low, good polishing effect
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Embodiment 1
[0023] (1) BN-Cr 2 o 3 -ZrO 2 Preparation of the compound: Add water: 33 mL, ammonium dichromate: 22 g, zirconium oxychloride: 16 g, nano-boron nitride: 29 g to the grinding machine, turn on the grinding machine, and grind at a speed of 500 rpm 5h, dried at 100°C, then baked at 850°C for 11h, cooled, and crushed by airflow to obtain BN-Cr 2 o 3 -ZrO 2 Composite, its particle size is 20~100nm;
[0024] (2) Preparation of boron nitride composite polishing solution: In the reactor, add water: 74 mL, lignosulfonate: 3.0 g, isopropanol: 4 mL, potassium bromate: 3 g, BN-Cr 2 o 3 -ZrO 2 Composite: 16 g, stirred and reacted for 5 hours at a speed of 300 rpm to obtain a boron nitride composite polishing solution.
Embodiment 2
[0026] (1) BN-Cr 2 o 3 -ZrO 2 Preparation of the compound: Add water: 30 mL, ammonium dichromate: 26 g, zirconium oxychloride: 20 g, nano-boron nitride: 24 g to the grinder, turn on the grinder, and grind at a speed of 550 rpm 4h, dried at 100°C, then baked at 900°C for 10h, cooled, and crushed by air flow to obtain BN-Cr 2 o 3 -ZrO 2 Composite, its particle size is 20~100nm;
[0027] (2) Preparation of boron nitride composite polishing solution: In the reactor, add water: 75 mL, lignosulfonate: 5 g, isopropanol: 5 mL, potassium bromate: 1 g, BN-Cr 2 o 3 -ZrO2 Composite: 14g, stirred and reacted for 4 hours at a speed of 300 r / min to obtain a boron nitride composite polishing solution.
Embodiment 3
[0029] (1) BN-Cr 2 o 3 -ZrO 2 Preparation of the compound: Add water: 38 mL, ammonium dichromate: 18 g, zirconium oxychloride: 12 g, nano-boron nitride: 32 g to the grinder, turn on the grinder, and grind at a speed of 600 rpm 6h, dried at 100°C, then baked at 880°C for 12h, cooled, and crushed by airflow to obtain BN-Cr 2 o 3 -ZrO 2 Composite, its particle size is 20~100nm;
[0030] (2) Preparation of boron nitride composite polishing solution: In the reactor, add water: 70 mL, lignosulfonate: 2.0 g, isopropanol: 3 mL, potassium bromate: 2 g, BN-Cr 2 o 3 -ZrO 2 Composite: 22 g, stirred and reacted for 6 hours at a speed of 300 rpm to obtain a boron nitride composite polishing solution.
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