A method for synthesizing zinc oxide whiskers by microwave-induced combustion synthesis reaction
A zinc oxide whisker, combustion synthesis technology, applied in the field of functional ceramics, can solve the problems of waste, increase costs and the like, and achieve the effect of reducing the reaction cost
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example 1
[0028] Choose carbon black powder with a particle size of 30nm and high-purity zinc oxide with a particle size of 1μm as raw materials, weigh the powder according to the C / ZnO mass ratio of 1:1, and then mix and ball mill it in a ball mill for 5 hours to make it fully mixed. The prepared raw materials were put into a quartz crucible, placed in a microwave quartz tube furnace for reaction synthesis, the tube was open at both ends, the heating rate was 200°C / min, and the synthesis temperature was 200°C without heat preservation. Gained white flocculent product after furnace cooling is zinc oxide whisker (such as figure 1 shown).
example 2
[0030] Activated carbon powder with a particle size of 10 μm and high-purity zinc oxide with a particle size of 1 μm were used as raw materials, and the powder was weighed according to the C / ZnO mass ratio of 4:1, and then mixed and ball-milled in a ball mill for 5 hours to make it fully mixed. The prepared raw materials were put into a quartz crucible, placed in a microwave quartz tube furnace for reaction synthesis, with both ends of the tube open, the heating rate was 300°C / min, the synthesis temperature was 600°C, and the temperature was kept for 3 minutes. Gained white flocculent product after furnace cooling is zinc oxide whisker (such as figure 2 shown).
example 3
[0032] Graphite powder with a particle size of 30 μm and high-purity zinc oxide with a particle size of 1 μm were selected as raw materials, and the powder was weighed according to the C / ZnO mass ratio of 1.5:1, and then mixed and ball-milled in a ball mill for 5 hours to make it fully mixed. The prepared raw materials were put into a quartz crucible, placed in a microwave quartz tube furnace for reaction synthesis, with both ends of the tube open, the heating rate was 400°C / min, the synthesis temperature was 400°C, and the temperature was kept for 5 minutes. Gained white flocculent product after furnace cooling is zinc oxide whisker (such as image 3 shown).
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