纳米氧化镁粉体制备技术的研究进展

按反应物的状态,纳米氧化镁的制备方法可分为固相法、气相法和液相法,分别评述了这些制备方法的优点和不足,介绍了纳米材料团聚程度的表征方法,从影响团聚的因素如反应原料、反应条件、脱水及干燥方式、煅烧条件和分散剂的选用等方面,较详细地讨论了纳米氧化镁粉体制备过程应采取的防团聚措施,提出了纳米氧化镁材料研究的几点建议。

Progress on Preparation of Nano-structured Magnesia Powder

According to the state of reactants, the preparation methods of n ano-structured magnesia are classified into solid-phase method, gas-phase method and liquid-phase method, the benefits and disadvantages of every meth od are briefly appraised. The characterizing methods for the degree of agglomer ation on nano-particles are introduced, started with influence factors of agg lomeration, such as raw materials, reaction conditions, drying methods, calc ination conditions and selection of dispersants. The measures which should be t aken for solving of agglomeration in the process of nano-magnesia preparation are discussed in detail. Some advices on the research ofnano-structured magne sia are given.