中国粉体技术2012，Vol.18Issue(3)：19-22,4.DOI:10.3969/j.issn.1008-5548.2012.03.005
硬脂酸改性纳米ZnO的研究
Modification of ZnO Nano-particles with Stearic Acid
摘要
Abstract
Using the distilled water as solvent, stearic acid was used to modify the surface of ZnO nano-particles by esterification method. The effect of modification was measured and characterized. The optimum conditions were that the mass fraction of stearic acid, reaction temperature and reaction time were 6%, 90 °C, 90 min, respectively. The results show that the modified ZnO nano-particles are dispersed in nano-level and the lipophilic value and water absorption are 72.31% and 3.04% respectively. The modified ZnO nano-particles have well lipophilic. IR spectra shows that the functional groups of stearic acid are introduced to the surfaces of modified ZnO nano-particles, and the number of hydroxyl groups on the surfaces is significantly reduced. The modification mechanism is that the hydroxyl groups on the surfaces of ZnO nano-particles react with the carboxyl groups of stearic acid by esterification.关键词
硬脂酸/表面改性/钠米粒子/酯化反应Key words
stearic acid/ surface modification/ nano-particles/ esterification分类
通用工业技术引用本文复制引用
周莉,魏珂瑶,张建中,吴海艳..硬脂酸改性纳米ZnO的研究[J].中国粉体技术,2012,18(3):19-22,4.基金项目
辽宁省科学技术计划项目,编号:2009304002. （）
