中国粉体技术2012，Vol.18Issue(5)：6-10,5.DOI:10.3969/j.issn.1008-5548.2012.05.002
直接沉淀法制备疏水性氢氧化镁及其表征
Preparation of Hydrophobic Magnesium Hydroxide by Direct Precipitation Method and Characterization
李庆蛟 1马云霞 1张淑娴 1王玉龙 1王标兵1
作者信息
- 1. 中北大学材料科学与工程学院,山西太原030051
- 折叠
摘要
Abstract
Hydrophobic magnesium hydroxide (Mg(OH)2) nano-particles were prepared visa the one-step direct precipitation method by using brine (MgCl2·6H2O) and ammonia as raw materials, lanthanum stearate as surface modifier at room temperature. The product was analyzed by SEM, FTIR, TG, XRD and hydrophobic test. The results show that the particles surface is changed from hydrophilic to hydrophobic through the reaction between lanthanum stearate and Mg(OH)2. The modified Mg(OH)2 is nonpolar and can float over the water. Its performance shows hydrophobic. Lanthanum stearate does not change the crystal form of Mg(OH)2. But the impurity peak of La(OH)3 emerges in XRD. Stearic acid iron organizes the surface of Mg(OH)2 by adsorbing on it. The dispersibility and thermal stability are improved at the same time.关键词
氢氧化镁/硬脂酸镧/疏水性Key words
magnesium hydroxide/ lanthanum stearate/ hydrophobic property分类
化学化工引用本文复制引用
李庆蛟,马云霞,张淑娴,王玉龙,王标兵..直接沉淀法制备疏水性氢氧化镁及其表征[J].中国粉体技术,2012,18(5):6-10,5.
