WANG Fei， QIAN Haiyan， CHEN Jinshi
（College of Materials Science and Engineering， Nanjing University of Technology， Nanjing 210009， China）
Abstract：Magnesium hydroxide was prepared by hydrating method using magnesium oxide as the raw materials.The influence of the four kinds magnesiumsalts (MgSO4, Mg (CH3COO) 2, MgCl2andMg (NO3) 2) dosageon hydration rate of magnesium oxide, as well as the influence of ammonium salt and seed on the particle size and morphology of magnesium hydroxide was studied.The characteristic, particles size and morphology of the synthetic magnesium hydroxide were characterized by XRD and SEM.The influential mechanism of the influencing factors was discussed.The results show that the hydration rate of magnesium oxide rises with the increasing of Mg2+ concentration, the maximum hydration rate of magnesium oxide can reach 98.68%.The magnesium hydroxide particles are approximate hexagonal platelet shape and the particle size was about 200 to 500 nm.
Keywords：magnesium salt;seed;magnesium oxide;magnesium hydrox ide;hydration
文章编号：1008-5548（2013）02-0040-04
DOI：10.3969/j.issn.1008-5548.2013.02.010
收稿日期：2012-08-27，修回日期：2012-09-10。
基金项目：江苏省高校优势学科建设工程资助项目，编号：2011471。
第一作者简介：王飞（1986—），男，硕士研究生，研究方向为材料工程。E-mail ：dzxywangfei@163.com。
通信作者：钱海燕（1969—），女，博士，副教授，研究方向为可控粉体材料的制备。 E-mail ：qianhaiy@163.com。
