CAJ | 학술논문

以六水氯化镁为原料，利用氨水和氢氧化钠混合溶液为沉淀剂，采用直接沉淀法制备纳米氢氧化镁。其最佳反应条件为温度60℃，反应时间90min，氯化镁浓度0．5mol／L，体积比为1：1乙醇和水为混合溶剂，表面活性剂聚乙二醇．400用量为六水氯化镁质量的3％，烘干温度为80℃。实验得到粒径分布窄、分散性好的氢氧化镁粉体，对纳米氢氧化镁的工业化生产有重要意义。
이륙수록화미위원료，이용안수화경양화납혼합용액위침정제，채용직접침정법제비납미경양화미。기최가반응조건위온도60℃，반응시간90min，록화미농도0．5mol／L，체적비위1：1을순화수위혼합용제，표면활성제취을이순．400용량위륙수록화미질량적3％，홍간온도위80℃。실험득도립경분포착、분산성호적경양화미분체，대납미경양화미적공업화생산유중요의의。
Using magnesium chloride hexahydrate as material, taking the mixture of ammonia and sodium hydroxide as precipitant, nano-structured magnesium hydrate was prepared based on direct precipitation method. The best conditions were gotten: reaction temperature was 60℃, reaction time was 90 min, the concentration of magnesium chloride was 0.5 mol/L, the mixed solvent was ethanol/water mixture and the volume ratio of ethanol to water was 1 :1, the amount of surface active agent polyethylene glycol-400 was 3 % of magnesium chloride hexahydrate, the drying temperature was 80 ℃. The resulting magnesium hydrate showed narrow diameter distribution and good dispersion, which was of great significance to industrial production of nano-structured magnesium hydroxide.